report documentation page form approved concepts such as phased-array, receive ... mimo radars are...

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Standard Form 298 (Rev 8/98) Prescribed by ANSI Std. Z39.18 614-270-1361 W911NF-13-1-0280 63486-CS-RIP.2 Final Report a. REPORT 14. ABSTRACT 16. SECURITY CLASSIFICATION OF: 1. REPORT DATE (DD-MM-YYYY) 4. TITLE AND SUBTITLE 13. SUPPLEMENTARY NOTES 12. DISTRIBUTION AVAILIBILITY STATEMENT 6. AUTHORS 7. PERFORMING ORGANIZATION NAMES AND ADDRESSES 15. SUBJECT TERMS b. ABSTRACT 2. REPORT TYPE 17. LIMITATION OF ABSTRACT 15. NUMBER OF PAGES 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 5c. PROGRAM ELEMENT NUMBER 5b. GRANT NUMBER 5a. CONTRACT NUMBER Form Approved OMB NO. 0704-0188 3. DATES COVERED (From - To) - UU UU UU UU 17-06-2015 1-Aug-2013 31-Aug-2014 Approved for Public Release; Distribution Unlimited Final Report: (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research Under this DURIP grant, we have build a distributed MIMO software defined radar (SDR) testbed. The testbed consists of 14 micro SDR platforms with two transmit and one receive antennas and a standalone SDR with 4 transmit and 4 receive channels multiplexed to 32 x 32 antenna array through a switching matrix. These SDR platforms can adaptively modify both transmit waveforms and receive signal-processing tasks in real time. The radar platforms and associated antenna arrays are designed at X-Band with bandwidths unto 250 MHz. The views, opinions and/or findings contained in this report are those of the author(s) and should not contrued as an official Department of the Army position, policy or decision, unless so designated by other documentation. 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS (ES) U.S. Army Research Office P.O. Box 12211 Research Triangle Park, NC 27709-2211 MIMO Radar Testbed, Software Defined Radar, Waveform Adaptation REPORT DOCUMENTATION PAGE 11. SPONSOR/MONITOR'S REPORT NUMBER(S) 10. SPONSOR/MONITOR'S ACRONYM(S) ARO 8. PERFORMING ORGANIZATION REPORT NUMBER 19a. NAME OF RESPONSIBLE PERSON 19b. TELEPHONE NUMBER Emre Ertin Emre Ertin 611103 c. THIS PAGE The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggesstions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA, 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any oenalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. Ohio State University 1960 Kenny Road Columbus, OH 43210 -1016

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Standard Form 298 (Rev 8/98) Prescribed by ANSI Std. Z39.18

614-270-1361

W911NF-13-1-0280

63486-CS-RIP.2

Final Report

a. REPORT

14. ABSTRACT

16. SECURITY CLASSIFICATION OF:

1. REPORT DATE (DD-MM-YYYY)

4. TITLE AND SUBTITLE

13. SUPPLEMENTARY NOTES

12. DISTRIBUTION AVAILIBILITY STATEMENT

6. AUTHORS

7. PERFORMING ORGANIZATION NAMES AND ADDRESSES

15. SUBJECT TERMS

b. ABSTRACT

2. REPORT TYPE

17. LIMITATION OF ABSTRACT

15. NUMBER OF PAGES

5d. PROJECT NUMBER

5e. TASK NUMBER

5f. WORK UNIT NUMBER

5c. PROGRAM ELEMENT NUMBER

5b. GRANT NUMBER

5a. CONTRACT NUMBER

Form Approved OMB NO. 0704-0188

3. DATES COVERED (From - To)-

UU UU UU UU

17-06-2015 1-Aug-2013 31-Aug-2014

Approved for Public Release; Distribution Unlimited

Final Report: (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Under this DURIP grant, we have build a distributed MIMO software defined radar (SDR) testbed. The testbed consists of 14 micro SDR platforms with two transmit and one receive antennas and a standalone SDR with 4 transmit and 4 receive channels multiplexed to 32 x 32 antenna array through a switching matrix. These SDR platforms can adaptively modify both transmit waveforms and receive signal-processing tasks in real time. The radar platforms and associated antenna arrays are designed at X-Band with bandwidths unto 250 MHz.

The views, opinions and/or findings contained in this report are those of the author(s) and should not contrued as an official Department of the Army position, policy or decision, unless so designated by other documentation.

9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)

U.S. Army Research Office P.O. Box 12211 Research Triangle Park, NC 27709-2211

MIMO Radar Testbed, Software Defined Radar, Waveform Adaptation

REPORT DOCUMENTATION PAGE

11. SPONSOR/MONITOR'S REPORT NUMBER(S)

10. SPONSOR/MONITOR'S ACRONYM(S) ARO

8. PERFORMING ORGANIZATION REPORT NUMBER

19a. NAME OF RESPONSIBLE PERSON

19b. TELEPHONE NUMBEREmre Ertin

Emre Ertin

611103

c. THIS PAGE

The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggesstions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA, 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any oenalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS.

Ohio State University1960 Kenny Road

Columbus, OH 43210 -1016

31-Aug-2014

ABSTRACT

Number of Papers published in peer-reviewed journals:

Number of Papers published in non peer-reviewed journals:

Final Report: (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Report Title

Under this DURIP grant, we have build a distributed MIMO software defined radar (SDR) testbed. The testbed consists of 14 micro SDR platforms with two transmit and one receive antennas and a standalone SDR with 4 transmit and 4 receive channels multiplexed to 32 x 32 antenna array through a switching matrix. These SDR platforms can adaptively modify both transmit waveforms and receive signal-processing tasks in real time. The radar platforms and associated antenna arrays are designed at X-Band with bandwidths unto 250 MHz.

(a) Papers published in peer-reviewed journals (N/A for none)

Enter List of papers submitted or published that acknowledge ARO support from the start of the project to the date of this printing. List the papers, including journal references, in the following categories:

(b) Papers published in non-peer-reviewed journals (N/A for none)

(c) Presentations

Received Paper

TOTAL:

Received Paper

TOTAL:

Number of Non Peer-Reviewed Conference Proceeding publications (other than abstracts):

Peer-Reviewed Conference Proceeding publications (other than abstracts):

Number of Peer-Reviewed Conference Proceeding publications (other than abstracts):

0.00Number of Presentations:

Non Peer-Reviewed Conference Proceeding publications (other than abstracts):

(d) Manuscripts

Received Paper

TOTAL:

06/12/2015

Received Paper

1.00 Siddharth Baskar, Emre Ertin. A Software Defined Radar Platform for Waveform Adaptive MIMO Radar Research , IEEE International Radar Conference. 11-MAY-15, . : ,

TOTAL: 1

Received Paper

TOTAL:

Books

Number of Manuscripts:

Patents Submitted

Patents Awarded

Awards

Graduate Students

Names of Post Doctorates

Received Book

TOTAL:

Received Book Chapter

TOTAL:

PERCENT_SUPPORTEDNAME

FTE Equivalent:

Total Number:

PERCENT_SUPPORTEDNAME

FTE Equivalent:

Total Number:

Sub Contractors (DD882)

Names of Faculty Supported

Names of Under Graduate students supported

Names of Personnel receiving masters degrees

Names of personnel receiving PHDs

Names of other research staff

Number of graduating undergraduates who achieved a 3.5 GPA to 4.0 (4.0 max scale):Number of graduating undergraduates funded by a DoD funded Center of Excellence grant for

Education, Research and Engineering:The number of undergraduates funded by your agreement who graduated during this period and intend to work

for the Department of DefenseThe number of undergraduates funded by your agreement who graduated during this period and will receive

scholarships or fellowships for further studies in science, mathematics, engineering or technology fields:

Student MetricsThis section only applies to graduating undergraduates supported by this agreement in this reporting period

The number of undergraduates funded by this agreement who graduated during this period:

0.00

0.00

0.00

0.00

0.00

0.00

0.00

The number of undergraduates funded by this agreement who graduated during this period with a degree in science, mathematics, engineering, or technology fields:

The number of undergraduates funded by your agreement who graduated during this period and will continue to pursue a graduate or Ph.D. degree in science, mathematics, engineering, or technology fields:......

......

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Inventions (DD882)

Scientific Progress

Technology Transfer

Final Report

(DURIP) MIMO Radar Testbed for

Waveform Adaptive Sensing Research

Contract/Grant # W911NF-13-1-0280

PI: Emre Ertin

Department of Electrical and Computer Engineering

The Ohio State University

Columbus, OH

Foreword Microwave radar systems are crucial components of any standoff sensor system due to their all-weather

capabilities and proven performance for tracking, imaging, and situational awareness. However, complex electromag-

netic wave propagation environment such as urban area with clutter discrete can make separation of target signatures

and propagation channel effects difficult; a radar capable of adaptively varying its transmit waveforms for probing

the environment, including the use of multiple transmit/receive antennas can provide distinct gains in separating these

effects.

Under this DURIP program we build a collaborative research resource based on software defined radar (SDR) plat-

forms that can adaptively modify both transmit waveforms and receive signal-processing tasks in real time. This

collaborative research resource will be utilized by faculty and students of the Ohio State University, University of

Michigan, Massachusetts Institute of Technology and Arizona State University. The testbed consists of 14 Micro SDR

Platforms with 2 transmit and 1 receive antennas and a standalone high performance multichannel SDR multiplexed

to a 32 x 32 antenna array.

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Contents

1 Problem Statement 1

2 Design Summary and Results 3

2.1 Novel Hybrid Up and Downconversion Stage Design . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 RF Frontend Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Antenna Switching Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Benchtop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.5 Experimental Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Appendix A Schematics for X-Band Custom RF Frontend 13

Appendix B Schematics for MIMO Antenna Switching Matrix 27

1 Problem Statement

MIMO radar systems which can transmit independent waveforms on multiple antennas have been suggested for im-

proving detection, parameter estimation and clutter suppression capabilities. While many traditional multi-antenna

radar concepts such as phased-array, receive beamforming, STAP, polarimetry, and interferometry can be seen as spe-

cial cases of MIMO radar, the distinct advantage of a multi-antenna radar system with independent transmit waveforms

is the increased number of degrees of freedom leading to improved resolution, detection and parameter estimation.

MIMO system benefits can be realized in the form of reduced pulse repetition frequency (PRF), larger spot sizes,

and/or lower transmit energy.

In the literature, MIMO radars are distinguished based on the geometry of the receive and transmit centers. There are

two main categories. MIMO radars with widely separated transmit and receive arrays provide statistically independent

measurements of the illuminated scene and are categorized as a statistical MIMO radars. MIMO radar systems with

widely separated antennas employs spatially diverse transmitters and receivers to overcome target fading effects [1],

[2] or to estimate a target’s location with high resolution [3, 4]. If antennas are relatively close to each other, so that

1

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

for each scatterer in the illuminated scene the angle of arrival is approximately the same for all phase centers, then

the system is referred to as a coherent MIMO radar. The main advantage of the coherent MIMO radar is its ability to

synthesize a large virtual array with fewer antenna elements for improved spatial processing. The OSU micro SDR

platforms we developed will enable research in both modalities as well as novel hybrid modes combining elements of

the two in a multi-static setting.

In this project our focus is development of a low power, short range versatile radar system that combines a high

speed FPGA digital back-end with sideband digital/analog and analog/digital converters with a custom built RF Fron-

tend. The key idea is software defined radar system is to sample the transmit/receive waveforms using high speed

digital/analog and analog/digital converters and to implement key processing stages using programmable digital hard-

ware [5]. This allows the SDR to, for example, change modes from detection to tracking, or adapt its waveform based

on environmental conditions and or information derived from previous radar interrogations. Increasing number of

transmit and receive channels with the use of antenna switching matrix for MIMO applications is discussed in [6].

The use of MIMO radar for studying wideband radar array signal processing in short range indoor application has

been demonstrated in [7], where non-adaptive linear frequency FM waveforms are used. Application of waveform

adaptation for matching transmitted waveform to the target’s impulse response improves target detection and aids in

target identification [8, 9]. However, experimental verification of these ideas have not been widely explored.

Under this DURIP program we build a collaborative research resource based on software defined radar (SDR) plat-

forms that can adaptively modify both transmit waveforms and receive signal-processing tasks in real time. The testbed

consists of 14 Micro SDR Platforms with 2 transmit and 1 receive antennas and a standalone high performance multi-

channel SDR multiplexed to a 32 x 32 antenna array. This two-tiered architecture allows research and experimentation

in many domains of active sensing. Specifically we focus on three scenarios:

• Micro SDRs can be deployed to perform non-coherent fusion of backscatter returns (also known as statistical

MIMO radar) to decrease fluctuations in target returns to selective fading through spatial diversity. The Micro

SDRs can modify their transmit waveforms and pulse repetition frequencies cooperatively to adapt changes in

the background and target returns as well as scene complexity. In addition micro SDRs can be mounted on

robotic platforms to optimize the collection geometry and derive fusion research with other modalities such as

2

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

EO, IR cameras and acoustic sensors.

• Co-located MIMO array paired with the switchable antenna array matrix can emulate airborne collections with

its 32x32 antenna matrix. Focus will be on space-time adaptive (STAP) techniques for detection of slow moving

targets against stationary clutter. Specifically, the performance of the MIMO STAP techniques critically hinges

on the structure of the clutter covariance matrix, and to our best knowledge the testbed will be unique in its data

collection capability for massive MIMO arrays.

• Alternatively the two components of the testbed can be combined to provide a novel operation scenario, where

the coherent MIMO array is used to emulate illumination by an airborne platform with multi-static passive

sensing by micro-SDR platforms from diverse set of aspect angles.

There are many other scenarios where the components of the testbed can be used to derive research in active sensing.

This report focuses on details of the hardware design for the SDR platforms.

Figure 1: Waveform adaptive MIMO SDR

2 Design Summary and Results

The operational principle of a software defined radar system is to sample the transmit/receive waveforms using high

speed digital/analog and analog/digital converters and to implement key processing stages using programmable digital

3

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

hardware. The block diagram for the proposed software defined radar system is given in Figure 1. A high speed

digital waveform generator is used to construct independent waveforms for a set of transmit antennas, and produces

a synchronized multi-channel baseband transmit signal which is mixed and amplified for transmission. In the receive

signal chain, the received energy is filtered, amplified, and downconverted by an RF module, sampled in the baseband

bandwidth synchronously across the multiple channels, and passed to an FPGA-based real-time signal processor for

multi-channel coherent processing. The adaptive operation of the system is controlled by the information driven active

sensing layer which allocates system resources to achieve sensing objectives by supplying the user with ATR primitives

(target detections, target track and ID). The current implementation of the micro SDR platform is given in Figure 2

with the custom X-Band RF frontend developed at OSU on the top and the off the shelf high speed digital backend at

the bottom. Design details for the first spiral of the design cycle were reported earlier in [10].

Figure 2: OSU Micro SDR platform

2.1 Novel Hybrid Up and Downconversion Stage Design

In an idealized model of software defined radar analog-to-digital and digital-to-analog conversion will be accomplished

at the RF frequency band without analog conversion stages. This way, down and up-conversion will be performed in the

4

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

digital domain limiting the analog components to high-dynamic range low noise amplifier (LNA) and power transmit

amplifiers. Unfortunately, existing ADC performance is far from operating with high dynamic range in the radar bands

of interest at multiple GHz. In addition, real time signal processing tasks of frequency conversion, digital filtering will

require multiple FPGA/DSPs operating on interleaved data to cope with the large sampling rate of receive and transmit

signals. Therefore, RF fronted in a software defined radar system have to include up and down conversion stages.

There are many options of implementing conversion stages. The most common architecture is heterodyne receiver

structure that uses an conversion stages at multiple intermediate frequencies (IF) to implement image suppression and

channel selection. Heterodyne receivers can achieve high sensitivity and channel selectivity, DC offset is eliminated

in the bandpass filters following each IF conversion. However, large number of components including image rejection

filters are required for multiple conversion stages increasing the complexity of the design. At the other end of the

spectrum of the receiver structures are Zero-IF receivers that employ single quadrature demodulator to bring the RF

passband signal to complex baseband. Zero-IF receivers are not subject to the image problem common to receivers

with intermediate frequency conversion stages. However, significant DC offsets at the output of quadrature mixers as

a result of LO leakage signal mixing with itself.

In our design we employ a hybrid structure relying on the oversampling design of the DAC which can generate

waveforms at digitally generated IF frequencies. On transmit, we directly generate a pass band signal around a lowIF

frequency of 187.5 MHz with a bandwidth of 125 MHz using the oversampling DACs in our system. Each DAC is

used to generate an independent transmit waveform as real-valued pass band signal. For each transmit channel, low-IF

pass-band signal is up-converted to X-band using a single channel mixer. We use a RF pass-band filter to reject the

image and LO leakage. On receive we use a RF band-pass filter to limit the wideband noise and a zero-IF receiver

with quadrature downconversion with the same LO that generated the transmit signal. As a result the received signal

is passband signal at the output of down-conversion mixer’s I and Q outputs. Next, we employ standard bandpass

sampling in the second Nyquist zone, to alias the digitally generated low-IF signal to the baseband. We note that in

our system DAC and ADC use a single clock -source eliminating the problem of clock-jitter limiting the performance

of band-pass sampling systems in practice. In addition low-IF bandpass sampling system enables us to use a DC-

blocker at the output of quadrature mixer output, eliminating the DC-offset problem common to zero-IF receivers.

Figure 3 shows the novel hybrid up and downconversion employed in our design

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Figure 3: Frequency content of the transmit baseband, transmit passband and receive baseband signals. Bandpass

sampling aliasing is depicted as dashed lines.

The custom RF Frontend built at Ohio State features two independent Transmit (TX) and a single Receive (RX) channel

multiplexed to four receive antennas. The instantaneous bandwidth of the system is 250 MHz. The RF Frontend

operates at X-band and includes an onboard Phase Locked Loop (PLL) and Voltage Controlled Oscillator (VCO) to

generate Local Oscillator (LO) signal from a local GPS conditioned oven-controlled 10 MHz reference.

2.2 RF Frontend Design

Figure 4 shows the block diagram of Receiver. The inputs of four RX antennas are fed to a Low Noise Amplifier

(LNA) whose output is connected to receive frontend through switching circuit. Since it is likely that the antennas will

be connected to the rest of the RF system by long cables, including the LNA close to the antenna reduces the impact

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Figure 4: Block Diagram of receiver

of cable loss on receiver’s overall noise figure. The signal from the switch is filtered through a resonant coupled

Band Pass Filter (BPF) to filter any blocker and image signal. The filtered signal is down converted by In-phase and

Quadrature (IQ) mixer and the down converted signal is amplified by an IF amplifier. The amplified signal is filtered

by a low pass filter and digitized by high speed ADC. In order to minimize the phase and amplitude imbalance in IQ

signal, the I and Q channels are routed symmetrically and dual IF amplifier is used for amplification.

Figure 5: Block Diagram of Transmitter

Figure 5 shows the block diagram of Transmitter. The IF signal is generated by the DAC at 250 MHz and 0 dBm

power. The IF single is filtered by a Low Pass Filter (LPF) to remove digital copies and amplified by a base band

amplifier. The amplified signal is up converted to X-Band using a double-balanced mixer and further amplified by a

high Power Amplifier (PA). The amplified signal is filtered by a resonant coupled band pass filter to remove mixer and

power amplifier inter-modulation components.

The on board PLL requires a reference signal of 50 MHz signal for locking, however the GPS conditioned reference

is designed to generate a 10 MHz signal. Hence a 5X frequency multiplier is used and a combination of Low Pass

and High Pass filters were used to remove harmonics from the multiplier. The reference signal is further amplifier

to compensate for the loss during frequency multiplication. This resulting 50 MHz signal is used as reference by the

7

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

PLL. Output of PLL is divided equally by a 3 dB splitter and further amplified by driver amplifiers and this amplified

signal is used by the mixers for up and down conversion. The PLL used on the SDR works with a standard four wire

Serial Peripheral Interface (SPI). MSP430F1611 micro controller is used for configuring the registers on the PLL upon

power up.

Figure 6: Momentum 3D view of Resonant Coupled Band Pass filter

Figure 7: Simulated frequency response of band pass filter

Figure 6 shows the Momentum 3D view of resonant coupled band pass filter used on both transmit and receive section

of Ohio State’s RF Frontend. Increasing the number of sections will provide a sharper cutoff for the filter but at the

same time increase the insertion loss. Hence to optimize both roll off and insertion loss a four section topology was

chosen. Each section of the filter is designed with Microstrip coupled line (MCLIN) and Linecalc software was used to

calculate odd and even mode impedance of MCLIN. Microstip to Coplanar Waveguide (CPW) transition was designed

and added to both input and output ports of the filter so that the filter can be connected to the components on the board.

Figure 7 shows the frequency response of the filter. From the figure it can be seen that the insertion loss at center

frequency is roughly 3 dB and attenuation at the sideband (FLO + FIF ) is approximately 20 dB.

Schematics and the layout of the RF Frontend Printed Circuit Board (PCB) designed at Ohio State are given in Ap-

pendix A. All the RF and IF components are placed on the top side of the board. To minimize the signal cross

coupling and to reduce the effect of power supply induced signal distortion, each RF and IF components have different

8

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Figure 8: Spectrum of Transmitter with 250 MHz IF signal at -3 dbm power

bias and power supply. The RF Frontend is fabricated on a 4 layer RO4350B substrate and all the RF traces were

designed and simulated on Advanced Design System (ADS) software. The board was designed using Allegro PCB

editor software.

2.3 Antenna Switching Matrix

Both the micro SDR and standalone multi-channel MIMO SDR unit RF fronted units are designed for interfacing

with antenna arrays for multiplexing large number of receive and antenna arrays. For the standalone array we have

designed a 32 TX and 32 RX antenna array to interface to 4 transmit and 4 receive channels on the RF frontend. 32

Tx and 32 Rx antennas are printed on a circuit board in two rows parallel to each other. The system can emulate linear

airborne motion along its long axis by sequentially selecting 4 consecutive Rx antennas out of the available 32 receive

and transmit antennas. For each pulse four independent waveforms are transmitted from four transmitters and received

by four antennas that are electronically selected. At subsequent pulses, waveforms transmitted from different set of

four receiving and transmit antennas shifted spatially k�/2 relative to the previous set, where � is the wavelength and

k is an integer.

The emulated airborne speed is given by the spacing between elements of the synthesized receivers arrays in subse-

quent pulses and the pulse repetition frequency. Each receive antenna has an LNA mounted on the back to minimize

the noise figure. Then we use set of four 4⇥1 switches followed by another 4⇥1 switch to allow routing of 32 antennas

to the 4 physical channels on the fronted. Schematics for the switching matrix are given in Appendix B.

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

2.4 Benchtop Measurements

All measurements were performed in lab environment with IF signal generated with Agilent Analog Signal generator

and measured with Agilent PXA Spectrum Analyzer. The receiver is characterized with transmit signal looped back

to receiver with 40 dB attenuation. Figure 8 shows the transmit spectrum with 250 MHz signal at IF. The desired

signal appears at (FLO � FIF ). Along with the desired signal, LO signal is also present due to the finite LO-RF

isolation of the mixer. However on the receiver side, during down conversion this LO leakage signal will be down

converted to Direct Current (DC) and will be blocked by capacitors. In addition to this FLO + FIF and FLO � 2FIF

(third order inter-modulation) are present at the output. The highest interfering signal is the LO leakage with 10dB

suppression

Figure 9: Transmitter Two Tone test result (tones centered at 250 MHz with 25 MHz frequency separation)

Figure 9 shows two tone test result of transmitter. The two tones are -3 dBm in power and are centered at 250 MHz and

with 25 MHz separation between them. As seen in any upconversion transmitter, due to the non linearity of mixer and

power amplifiers, the two tones interact with each other and produce second and third order inter-modulation products.

The important component for signal analysis is third order intermodulation products. From the figure the third order

inter modulation products are at 2F2 � F1 and 2F1 � F2. Measured IM3 value is 16.44 dB which is consistent with

the theoretical value calculated from specification of the components.

Table 1 summarizes measured critical performance metrics of the Transmitter and Receiver.

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Table 1: Critical Specifications of Transmitter and Receiver

Specification Transmitter Receiver

Gain 23.40 dB 24.20 dB

OIP3 33.99 dBm 29.20 dBm

P1dB -0.30 dBm -7.82 dBm

Noise Figure NA 2.76 dB

Figure 10: Range-Doppler Map of a vehicle for the two transmit channels

2.5 Experimental Results

We have validated the micro SDR platform performance through field tests. For the particular field test we have used

two independent waveforms of 120 MHz Bandwidth: one up-chirp and one down-chirp on the two transmit antennas.

The two waveforms are generated coherently in the FPGA and therefore orthogonal at each time in the frequency

domain. The backscatter energy from the objects in the field of view are sampled using a single receive channel

operating at 250 MSamples/sec at I and Q channels. After baseband filtering and down-sampling the responses to

each transmit channel is captured through match filtering with its associated waveform. We use a pulse repetition

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Figure 11: Range-Doppler Map of two dismounts walking at different speeds for the two transmit channels

frequency of 1KHz and use pulses that are 100 µsec long. The coherent processing interval (CPI) Is 64 pulses. The

returns are filtered in Doppler to suppress returns form stationary clutter.

In the first experiment returns from a vehicle moving away from the radar are captured. The Range-Doppler map for

the two transmit channels captured through a single channel are given in Figure 10. The target returns are clearly

visible and show symmetry in the two channels. In the second experiment we have two human subjects moving away

from the antenna at different speeds and roughly at the same range of about 10 meters. The Range-Doppler map

of the two transmit channels are given in Figure 11. Again the target returns are clearly visible and separated in

Doppler.

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Appendix A Schematics for X-Band Custom RF Frontend

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Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

C174

22uFC

17422uF

U27

Screw

1.4

U27

Screw

1.4 nc1

C209

22uFC

20922uF

J10

JAC

K 37341

J10

JAC

K 37341

1 2

U25

Screw

1.4

U25

Screw

1.4 nc1

C206

1uFC

2061uF

C205

0.1uFC

2050.1uF

J11

JAC

K 37341

J11

JAC

K 37341

1 2

L10

240-2411-1-ND

L10

240-2411-1-ND

C177

10uFC

17710uF

U26

Screw

1.4

U26

Screw

1.4 nc1

C192

10nFC

19210nF

U44

TPS

54427U

44TP

S54427

VIN

8

EN

1

VR

EG

53

SS

4

GND5

PP9

VFB

2

SW

6

VB

ST

7

C200

10nFC

20010nF

J13

JAC

K 37341

J13

JAC

K 37341

1 2

C190

0.1uFC

1900.1uF

C196

10nFC

19610nF

U32

Screw

1.4

U32

Screw

1.4 nc1

U23

Screw

1.4

U23

Screw

1.4 nc1

L13

3.6uH

L13

3.6uH

J4JAC

K 37341

J4JAC

K 37341

1 2

C186

10nFC

18610nF

C198

10nFC

19810nF

C211

0.1uFC

2110.1uF

J5JAC

K 37341

J5JAC

K 37341

1 2

C179

100nFC

179100nF

C191

0.1uFC

1910.1uF

U5TLW

-106-05-T-D

U5TLW

-106-05-T-D

GN

D1

SC

K3

SD

I5

SD

O7

SE

N9

CE

N11

DV

CC

_12

DV

CC

_24

NC

_16

NC

_28

NC

_310

NC

_412

U19

Screw

1.4

U19

Screw

1.4 nc1

L11

240-2411-1-ND

L11

240-2411-1-ND

U34

Screw

1.4

U34

Screw

1.4 nc1

J14

JAC

K 37341

J14

JAC

K 37341

1 2

R42

10K

R42

10K

C195

0.1uFC

1950.1uF

J9JAC

K 37341

J9JAC

K 37341

1 2

U24

Screw

1.4

U24

Screw

1.4 nc1

C176

0.1uFC

1760.1uF

R43

140kR

43140k

C203

10nFC

20310nF

C197

0.1uFC

1970.1uF

J3JAC

K 37341

J3JAC

K 37341

1 2

C207

0.008uFC

2070.008uF

C193

0.1uFC

1930.1uF

J17

JAC

K 37341

J17

JAC

K 37341

1 2

C185

0.1uFC

1850.1uF

C178

4.7uFC

1784.7uF

C201

0.1uFC

2010.1uF

L9240-2411-1-ND

L9240-2411-1-ND

C199

0.1uFC

1990.1uF

C187

10nFC

18710nF

C188

0.1uFC

1880.1uF

D14

LED

D14

LED

R44

22.1KR

4422.1K

C208

7pFC

2087pF

C204

22uFC

20422uF

U18

Screw

1.4

U18

Screw

1.4 nc1

C194

10nFC

19410nF

C210

22uFC

21022uF

L12

490-1041-2-ND

L12

490-1041-2-ND

C189

10nFC

18910nF

U20

Screw

1.4

U20

Screw

1.4 nc1

C180

0.1uFC

1800.1uF

U33

Screw

1.4

U33

Screw

1.4 nc1

C212

0.1uF

C212

0.1uF

R131

1K R131

1K

C181

10uFC

18110uF

J12

JAC

K 37341

J12

JAC

K 37341

1 2

C175

100nFC

175100nF

J8JAC

K 37341

J8JAC

K 37341

1 2

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

TX-RX LO Drivers

RX

_LO_A

MP

_IN

TX_LO

_AM

P_IN

TX_LO

RX

_LO_A

MP

_IN

Vdd_LO

_1V

dd_AM

P_1

Vdd_AMP_1

Vdd_LO

_1

TX_LO

_AM

P_IN

Vdd_LO

_2V

dd_AM

P_2

Vdd_AMP_2

TX_LO

Vdd_LO

_2

TX_LO

_1

TX_LO

_2

5.5V_A

NA

LOG

5.5V_A

NA

LOG

PLL_O

UT

RX

_LO

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

C117

22uF_CC

11722uF_C

C116

10uFC

11610uF

C120

1000pFC

1201000pF

C119

4.7uFC

1194.7uF

U29A

DP

3330-5

U29A

DP

3330-5

ER

R3

IN2

SD6

GND4

NR5

OU

T1

C121

100pFC

121100pF

U48

PD

-0434SM

U48

PD

-0434SM

IN1

OU

T12

OU

T23

U28

HM

C441LC

3B

U28

HM

C441LC

3B

GN

D1

1

RFIN

2

GN

D2

3

GND34

GND45

GND56

GN

D7

7R

FOU

T8

GN

D8

9

GND910

Vdd11

GND1012

GND1113

C115

100pFC

115100pF

U40

PD

-0434SM

U40

PD

-0434SM

IN1

OU

T12

OU

T23

C114

1000pFC

1141000pF

C113

4.7uFC

1134.7uF

C124

0.1uFC

1240.1uF

C123

22uF_CC

12322uF_C

U30

HM

C441LC

3B

U30

HM

C441LC

3B

GN

D1

1

RFIN

2

GN

D2

3

GND34

GND45

GND56

GN

D7

7R

FOU

T8

GN

D8

9

GND910

Vdd11

GND1012

GND1113

C122

10uFC

12210uF

C118

0.1uFC

1180.1uF

U31A

DP

3330-5

U31A

DP

3330-5

ER

R3

IN2

SD6

GND4

NR5

OU

T1

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

TX and RX Mixer

RX

_RF_IN

RX

_RF_IN

RFIN

2R

FIN1

RX

_IF_AM

P2_IN

RX

_IF_AM

P1_IN

RX

_LO

TX_P

A_IN

1TX

_PA

_IN2

TX_LO

_2TX

_LO_1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

U46

HM

C66LC

3

U46

HM

C66LC

3

N/C

11

LO2

GN

D1

3

NC

24

NC35

GND26

IF7

NC48

NC

59

NC

610

NC

711

NC

812

NC913

RF14

GND315

NC1016

GP17

U11

HM

C527LC

4

U11

HM

C527LC

4

N/C

11

N/C

22

GN

D1

3

RF

4

GN

D2

5

N/C

36

N/C47

N/C58

IF19

N/C610

IF211

GND512

N/C

713

GN

D3

14LO

15G

ND

416

N/C

817

N/C

918

N/C1019

N/C1120

N/C1221

N/C1322

N/C1423

N/C1524

GND625

U69

SM

A_conn

U69

SM

A_conn

IN2

GD1

GND3

U47

HM

C66LC

3

U47

HM

C66LC

3

N/C

11

LO2

GN

D1

3

NC

24

NC35

GND26

IF7

NC48

NC

59

NC

610

NC

711

NC

812

NC913

RF14

GND315

NC1016

GP17

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

PLL and VCO

AVDDRVDD

VCCHF

RV

DD

VCCHF

VC

CP

S

DV

DD

VCCPS

DVDD

VD

DP

D

VP

PC

PA

VD

DP

D

VTUNE

VTU

NE

VPPCPA

AV

DD

3V_A

NA

LOG

3V_A

NA

LOG

3V_A

NA

LOG

5V_V

CO

5V_V

CO

3V_A

NA

LOG

3V_D

IGITA

L

3V_A

NA

LOG

5V_C

P

SD

I

SC

K

SE

N

CE

N

SD

O

5V_C

P

VIN

_RE

G

PLL_O

UT

PLL_R

EF

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

C39

0.1uFC

390.1uF

R11

0 R11

0

C44

100pFC

44100pF

C28

470nFC

28470nF

C54

3.9nF

C54

3.9nF

C36

10uFC

3610uF

C34

100pFC

34100pF

C43

470nFC

43470nF

R4

100kR

4100k

C33

100pFC

33100pF

C183

1nFC

1831nF

C50

4.7uFC

504.7uF

J20J20

1

23

45

C38

10uFC

3810uF

C56

100nF

C56

100nF

R5

1k R5

1k

C53

560pF

C53

560pF

C51

0.1uFC

510.1uF

C55

270pFC

55270pF

C57

100nF

C57

100nF

C47

470nFC

47470nF

C41

470nFC

41470nF

C46

100pFC

46100pF

U4

THS

4031DG

N U4

THS

4031DG

N

NU

LL1

IN-

2

IN+

3

Vcc-

4N

C5

OU

T6

VC

C+

7N

ULL_2

8R

9374

R9

374

C40

100pFC

40100pF

C35

1nFC

351nF

C45

470nFC

45470nF

C42

100pFC

42100pF

U1

HM

C778LP

6CE

U1

HM

C778LP

6CE

NC

1

GN

D1

2

GN

D2

3

GN

D3

4

GN

D4

5

VTU

NE

6

GN

D5

7

VC

CV

CO

28

NC

19

NC

210

NC311

NC412

NC913

NC514

VCCHF15

VDDLS16

VPPCPA17

CP18

AVDD19

BIAS20

RV

DD

21N

C6

22N

C7

23X

RE

FP24

VD

DP

D25

NC

1026

CE

N27

SE

N28

SC

K29

SD

I30

DVDD31

VDDIO32

LD_SDO33

VCCPS34

NC835

TRIG36

GND637

RFOUT38

GND739

VCCVCO140

GN

D_B

41

R6

1kR

61k

C32

470nFC

32470nF

C49

0.1uFC

490.1uF

C37

0.1uFC

370.1uF

C48

4.7uFC

484.7uF

C52

18nF

C52

18nF

C25

100pFC

25100pF

C26

470nFC

26470nF

C182

4.7uFC

1824.7uF

C27

100pFC

27100pF

R10

100R

10100

C31

100pFC

31100pF

C58

100pF

C58

100pF

R8

13 R8

13

R7

374R

7374

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

PLL and VCO Bias

3V_D

IGITA

L

5V_C

P

3V_A

NA

LOG

5.5V_A

NA

LOG

5.5V_A

NA

LOG

5V_V

CO

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

C24

0.01uFC

240.01uF

C4

10uFC

410uF

C22

4.7uFC

224.7uF

C16

10uFC

1610uF

R3

100kR

3100k

C21

0.1uF

C21

0.1uF

U3

HM

C976LP

3E

U3

HM

C976LP

3E

EN

1

RD

2

RE

F3

VR

X4

HV5

N/C16

N/C27

N/C38

N/C

49

N/C

510

VR

11N

/C6

12

N/C713

N/C814

VDD15

N/C916

GND_217

C9

10uFC

910uF

C15

0.1uFC

150.1uF

C2

0.1uFC

20.1uF

C18

4.7uFC

184.7uF

C12

0.1uFC

120.1uF

C20

4.7uFC

204.7uF

C14

0.1uFC

140.1uF

C11

10uFC

1110uF

C7

10pFC

710pF

C23

0.1uFC

230.1uF

C17

0.1uFC

170.1uF

R1

220k

R1

220k

C5

10pFC

510pF

C10

0.1uFC

100.1uF

C1

0.1uFC

10.1uF

C8

0.1uFC

80.1uF

R2

220k

R2

220k

C3

10uFC

310uF

U2

HM

C860LP

3EU

2H

MC

860LP3E

VD

D1

GN

D1

2

EN

3

RE

F4

HV35

RD36

RD47

HV48

VR

49

VR

310

VR

211

VR

112

HV213

RD214

RD115

HV116

GND217

C19

0.1uFC

190.1uF

C13

1uFC

131uF

C6

0.1uFC

60.1uF

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

Receiver IF Amplifier

RX

_IF_AM

P1_O

UT

RX

_IF_AM

P2_O

UT

RX

_IF_VC

C

RX

_IF_VC

C

RX

_IF_AM

P1_O

UT

RX

_IF_AM

P2_O

UT

RX

_IF_VC

CV

IN_R

EG

RX

_IF_AM

P2_IN

RX

_IF_AM

P1_IN

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of1

1

L7270nHL7270nH

L21

XA

L4030-332ME

B

L21

XA

L4030-332ME

B

C157

100pFC

157100pF

C154

0.01uF

C154

0.01uF

U73

SM

A_conn

U73

SM

A_conn

IN2

GD1

GND3

R19

11 R19

11C

160100pFC

160100pF

R31

68.1kR

3168.1k

C158

2.2uFC

1582.2uF

L6270nHL6270nH

U83

TPS

563200

U83

TPS

563200

VIN

3

EN

5

VFB

4G

ND

1V

BS

T6

SW

2

R130

570R

130570

C155

2.2uFC

1552.2uF

C153

0.01uF

C153

0.01uF

U15

LFCN

-105+U

15LFC

N-105+

RFIN

1R

FOU

T3

GND14

GND22

C162

47uF_CC

16247uF_C

C159

1000pFC

1591000pF

U72

SM

A_conn

U72

SM

A_conn

IN2

GD1

GND3

U14

LFCN

-105+U

14LFC

N-105+

RFIN

1R

FOU

T3

GND14

GND22

R32

10kR

3210k

C151

0.01uF

C151

0.01uF

C345

0.1uFC

3450.1uF

C152

0.01uF

C152

0.01uF

U13

HM

C471M

S8G

U13

HM

C471M

S8G

RFIN

11

N/C

12

N/C

23

RFIN

24

RFO

UT1

8

N/C

47

N/C

36

RFO

UT2

5

GD9

D13

LED

D13

LED

C163

0.1uFC

1630.1uF

C344

0.1uFC

3440.1uF

R18

11 R18

11

C161

22uF_CC

16122uF_C

C156

1000pFC

1561000pF

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

Transmit IF Amplifier

5V_IF_1

5V_IF_2

5V_IF_2

5V_IF_1

RF_IF_IN

_1

RF_IF_IN

_2

RF_IF_IN

_1

RF_IF_IN

_2

5.5V_A

NA

LOG

5.5V_A

NA

LOG

RFIN

1

RFIN

2

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

C221

0.1uF

C221

0.1uF

C127

0.1uFC

1270.1uF

C217

68 pFC

21768 pF

C215

1 uFC

2151 uF

C219

0.1uF

C219

0.1uF

U8

LFCN

-105+U

8LFC

N-105+

RFIN

1R

FOU

T3

GND14

GND22

C218

1.2 nFC

2181.2 nF

U70

SM

A_conn

U70

SM

A_conn

IN2

GD1

GND3

U89

LAT-X

+

U89

LAT-X

+IN

PU

T4

OU

TPU

T2

GND11

GND23

C223

1 uFC

2231 uF

C130

0.1uFC

1300.1uF

L1470 nHL1470 nH

C225

1.2 nFC

2251.2 nF

C129

22uF_CC

12922uF_C

C214

0.1uF

C214

0.1uF

C224

68 pFC

22468 pF

U41

AD

L5535

U41

AD

L5535

RFIN

1R

FOU

T3

GND2

GND14

U87

LAT-X

+

U87

LAT-X

+IN

PU

T4

OU

TPU

T2

GND11

GND23

U39

AD

L5535

U39

AD

L5535

RFIN

1R

FOU

T3

GND2

GND14

C128

10uF_CC

12810uF_C

U88

LAT-X

+

U88

LAT-X

+IN

PU

T4

OU

TPU

T2

GND11

GND23

U7

LFCN

-105+U

7LFC

N-105+

RFIN

1R

FOU

T3

GND14

GND22

U38A

DP

3330-5

U38A

DP

3330-5

ER

R3

IN2

SD6

GND4

NR5

OU

T1

C126

22uF_CC

12622uF_C

C125

10uF_CC

12510uF_C

C227

0.1uF

C227

0.1uF

U37A

DP

3330-5

U37A

DP

3330-5

ER

R3

IN2

SD6

GND4

NR5

OU

T1

U71

SM

A_conn

U71

SM

A_conn

IN2

GD1

GND3

U86

LAT-X

+

U86

LAT-X

+IN

PU

T4

OU

TPU

T2

GND11

GND23

L2470nHL2470nH

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

Transmit_1 Power Amp

VN

EG

_1

VN

EG

_1

VD

D_P

A_1

Vgg_P

A_1

VD

D_D

IG_1

VD

D_D

IG_1

TX_P

A_O

UT_1

VD

D_D

IG_1

Vdd1_P

A1

VD

D_P

A_1

Vdd2_P

A1

VD

D_P

A_1

Vdd3_P

A1

VD

D_P

A_1

Vgg_P

A_1

Vgg1_P

A1

TX_P

A_O

UT_1

Vdd1_PA1

Vdd2_PA1

Vdd3_PA1

Vgg1_P

A1

VDD_DIG_1

S0

VDD_DIG_1

S1

S0

S1

VD

D_1

VD

D_1

VD

D_1

5.5V_A

NA

LOG

VIN

_RE

G

TX_P

A_IN

1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

R135

0 R135

0

C86

10nFC

8610nF

C202

0.1uFC

2020.1uF

U35A

DP

3330-5

U35A

DP

3330-5

ER

R3

IN2

SD6

GND4

NR5

OU

T1

R134

0 R134

0 R133

0 R133

0

C98

4.7uF_CC

984.7uF_C

U84

HM

C608LC

4

U84

HM

C608LC

4

Vgg

1

N/C

12

N/C

23

GN

D1

4

RFIN

5

GN

D2

6

N/C37

N/C48

N/C59

N/C610

N/C711

N/C812

GN

D3

13R

FOU

T14

GN

D4

15N

/C9

16N

/C10

17N

/C11

18

Vdd319

Vdd220

Vdd121

N/C1222

Vpd23

N/C1324

PGND25

U74

SM

A_conn

U74

SM

A_conn

IN2

GD1

GND3

D11

LED

D11

LED

D1

BA

T54S/S

OT

D1

BA

T54S/S

OT

C238

47uF_CC

23847uF_C

C91

0.1uFC

910.1uF

C326

100pFC

326100pF

R64

64.9KR

6464.9K

C325

2.2uFC

3252.2uF

C234

22uF_CC

23422uF_C

R27

0

R27

0

C239

100nF

C239

100nFC

2330.1uFC

2330.1uF

C324

1nFC

3241nF

C323

100pFC

323100pF

U78

TPS

563200

U78

TPS

563200

VIN

3

EN

5

VFB

4G

ND

1V

BS

T6

SW

2

C322

2.2uFC

3222.2uF

R20

5K R20

5K

C90

10uF_CC

9010uF_C

C341

100pFC

341100pF

C321

1nFC

3211nF

C340

2.2uFC

3402.2uF

R128

470R

128470

C339

1nFC

3391nF

C342

0.1uFC

3420.1uF

R21

10k

R21

10k

C240

0.1uFC

2400.1uF

U21

HM

C980LP

4E

U21

HM

C980LP

4E

VD

D1

1

VD

D2

2

S0

3

S1

4

EN

5

ALM

6

CP_VDD7

CP_OUT8

VDIG9

VREF10

VNEGFB11

VGATEFB12

VG

2_CO

NT

13V

G2

14V

NE

G15

VG

ATE

16V

DR

AIN

117

VD

RA

IN2

18

TRIGOUT19

ISENSE20

ALML21

ISET22

AMLH23

FIXEDBIAS24

GND25

R16

453R

16453

C88

1uF_CC

881uF_C

C87

10uF_CC

8710uF_C

R65

10kR

6510k

C89

10nFC

8910nF

C332

100pFC

332100pF

C85

10nFC

8510nF

R260

R260

L20 XA

L4030-332ME

B

L20 XA

L4030-332ME

B

C331

2.2uFC

3312.2uF

C84

4.7uFC

844.7uF

R136

0 R136

0

C330

1nFC

3301nF

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

Transmit_2 Power Amp

TX_P

A_O

UT_2

VD

D_D

IG_2

VD

D_D

IG_2V

NE

G_2

VN

EG

_2

VD

D_P

A_2

Vgg_P

A_2

VD

D_D

IG_2

VD

D_P

A_2

Vdd1_P

A2

VD

D_P

A_2

VD

D_P

A_2

Vdd2_P

A2

VD

D_P

A_2

VD

D_P

A_2

Vdd3_P

A2

VD

D_P

A_2

Vgg_P

A_2

Vgg1_P

A2

VD

D_P

A_2

TX_P

A_O

UT_2

Vdd1_PA2

Vdd2_PA2

Vdd3_PA2

Vgg1_P

A2

VDD_DIG_2

S0_2

VDD_DIG_2

S1_2

S0_2S

1_2

VD

D_2

VD

D_2

VD

D_2

5.5V_A

NA

LOG

VIN

_RE

G

TX_P

A_IN

2

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

B

11

R45

5K R45

5K

D12

LED

D12

LED

L19

XA

L4030-332ME

B

L19

XA

L4030-332ME

B

C300

1nFC

3001nF

C247

100nF

C247

100nF

C103

4.7uF_CC

1034.7uF_C

C314

100pFC

314100pF

C313

2.2uFC

3132.2uF

C312

1nFC

3121nF

C226

4.7uFC

2264.7uF

R70

10kR

7010k

R48

10k

R48

10k

R69

64.9kR

6964.9k

D2

BA

T54S/S

OT

D2

BA

T54S/S

OT

C246

47uF_CC

24647uF_C

C305

100pFC

305100pF

R129

470

R129

470

C304

2.2uFC

3042.2uF

C301

2.2uFC

3012.2uF

C222

10nFC

22210nF

C303

1nFC

3031nF

C102

10uF_CC

10210uF_C

U75

SM

A_conn

U75

SM

A_conn

IN2

GD1

GND3

R140

0 R140

0

C308

100pFC

308100pF

U36A

DP

3330-5

U36A

DP

3330-5

ER

R3

IN2

SD6

GND4

NR5

OU

T1

R139

0 R139

0

C107

0.1uFC

1070.1uF

C112

10nFC

11210nF

C216

1uF_CC

2161uF_C

C111

10uF_CC

11110uF_C

C307

2.2uFC

3072.2uF

C213

0.1uFC

2130.1uF

C220

10nFC

22010nF

R52

0

R52

0

U79

TPS

563200

U79

TPS

563200

VIN

3

EN

5

VFB

4G

ND

1V

BS

T6

SW

2

C306

1nFC

3061nF

R138

0 R138

0

R51

0

R51

0

U45

HM

C980LP

4E

U45

HM

C980LP

4E

VD

D1

1

VD

D2

2

S0

3

S1

4

EN

5

ALM

6

CP_VDD7

CP_OUT8

VDIG9

VREF10

VNEGFB11

VGATEFB12

VG

2_CO

NT

13V

G2

14V

NE

G15

VG

ATE

16V

DR

AIN

117

VD

RA

IN2

18

TRIGOUT19

ISENSE20

ALML21

ISET22

AMLH23

FIXEDBIAS24

GND25

C242

22uF_CC

24222uF_C

C343

0.1uF

C343

0.1uF

R137

0 R137

0

C241

0.1uFC

2410.1uF

C302

100pFC

302100pF

U85

HM

C608LC

4

U85

HM

C608LC

4

Vgg

1

N/C

12

N/C

23

GN

D1

4

RFIN

5

GN

D2

6

N/C37

N/C48

N/C59

N/C610

N/C711

N/C812

GN

D3

13R

FOU

T14

GN

D4

15N

/C9

16N

/C10

17N

/C11

18

Vdd319

Vdd220

Vdd121

N/C1222

Vpd23

N/C1324

PGND25

C248

0.1uFC

2480.1uF

R46

453R

46453

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

GPS Clock Bias

VIN

_RE

G

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

D15

LED

D15

LED

C252

620 pFC

252620 pF

C250

0.1uFC

2500.1uF

U55

TPS

62133 U55

TPS

62133

EN

13

PV

IN1

11

PV

IN2

12

SS

_TR9

EP17

PGND115

PGND216

AGND6

FB5

DE

F8

FSW

7V

OS

14

SW

11

SW

22

PG

4

SW

33

AV

IN10

R71

100kR

71100k

R132

1K R132

1K

C255

0.1uFC

2550.1uF

C256

0.01uFC

2560.01uF

C257

10pFC

25710pF

C253

22uFC

25322uF

C254

0.1uFC

2540.1uF

C249

10uF_CC

24910uF_C

J15

JAC

K 37341

J15

JAC

K 37341

1 2

C251

0.1uFC

2510.1uF

L22S

RN

8040-2R2Y

L22S

RN

8040-2R2Y

55

44

33

22

11

DD

CC

BB

AA

Software Defined Radar: X-Band RF Frontend

PLL Refernce

RE

F_AM

P_IN

RE

F_AM

P_IN

VIN

_RE

F_AM

P

VIN

_RE

F_AM

P

RE

FIN

RE

FIN

5.5V_A

NA

LOG

PLL_R

EF

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

C288

100pFC

288100pF

R76

18 R76

18

J16J16

123

45

C287

0.01uFC

2870.01uF

U63

HM

C478S

C70E

U63

HM

C478S

C70E

RFIN

3R

FOU

T6

GND11

GND22

GND34

GND45

R127

0 R127

0

C285

10uFC

28510uF

U64

RE

G102N

A-5C

T-ND

U64

RE

G102N

A-5C

T-ND

VIN

1V

OU

T5

EN

3

GND2

NR

4

U82

AD

P-2-1W

+

U82

AD

P-2-1W

+

SU

M1

PO

RT1

3

PO

RT2

4

GND6

NC12

NC25

J18J18

1

23

45

U60

RM

K-5-51+

U60

RM

K-5-51+

IN1

OU

T4

GND12

GND23

GND45

GND56

C291

0.1uF

C291

0.1uF

C283

100pF

C283

100pFL18270nHL18270nH

C286

0.1uFC

2860.1uF

U62

SX

HP

-48

U62

SX

HP

-48IN

1O

UT

8

GND12

GND23

GND34

GND45

GND56

GND67

C290

2.2uFC

2902.2uF

C284

0.1uFC

2840.1uF

U61

SX

LP-45

U61

SX

LP-45

IN1

OU

T8

GND12

GND23

GND34

GND45

GND56

GND67

C289

1000pFC

2891000pF

55

44

33

22

11

DD

CC

BB

AA

TANT 10uF CAPS478-3281-1-ND

Software Defined Radar: X-Band RF Frontend

MSP430 SPI Interface

TMS TC

KTD

I

TDO

TMS

TDI

TDO

RE

SE

T

TCK

UTX

D1

UR

XD

1

RE

SE

T

RE

SE

T

UTX

D1

UR

XD

1

3V_R

EG

3V_R

EG

DV

CC

DV

CC

DV

CC

DV

CC

DV

CC

DV

CC

DV

CC

SC

K

SD

O

SE

N

LED

1

SD

I

CE

N

LED

1

5.5V_A

NA

LOG

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

C295

0.1uFC

2950.1uF

R1250

R1250

C294

10uFC

29410uF

L23

F-Bead

L23

F-Bead

C296

10uFC

29610uF

X1

32.768KH

z FC-135

X1

32.768KH

z FC-135

R77

0R

770

R1230

R1230

C299

0.1uFC

2990.1uF

R24

100kR

24100k

R120

5.1MR

1205.1M

C2920.1uF

C2920.1uF

C298

0.1uFC

2980.1uF

R1220

R1220

C293

10uFC

29310uF

U66

LP2981

U66

LP2981

VIN

1

EN

3

GN

D2

VO

UT

5

NC

4

C297

0.1uFC

2970.1uF

U65

MS

P430F1611_2

U65

MS

P430F1611_2

P1.0/TA

CLK

12

P1.1/TA

013

P1.2/TA

114

P1.3/TA

215

P1.4/S

MC

LK16

P1.5/TA

017

P1.6/TA

118

P1.7/TA

219

P2.0/A

CLK

20

P2.1/TA

INC

LK21

P2.2/C

AO

UT/TA

022

P2.3/C

A0/TA

123

P2.4/C

A1/TA

224

P2.5/R

OS

C25

P2.6/A

DC

12CLK

/DM

AE

026

P2.7/TA

027

RS

T/NM

I58

TCK

57

TDI/TC

LK55

TMS

56

VE

RE

F+10

VR

EF+

7

VR

EF-/V

ER

EF-

11

XIN

8

XO

UT

9

XT2O

UT

52X

T2IN53

DV

SS

63P

6.0/A0

59

P6.1/A

160

P6.2/A

261

P6.3/A

32

P6.4/A

43

P6.5/A

54

P6.6/A

6/DA

C0

5

P6.7/A

7/DA

C1/S

VS

IN6

P5.0/S

TE1

44

P5.1/S

IMO

145

P5.2/S

OM

I146

P5.3/U

CLK

147

P5.4/M

CLK

48

P5.5/S

MC

LK49

P5.6/A

CLK

50

P5.7/TB

OU

TH/S

VS

OU

T51

P4.0/TB

036

P4.1/TB

137

P4.2/TB

238

P4.3/TB

339

P4.5/TB

541

P4.4/TB

440

P4.6/TB

642

P4.7/TB

CLK

43

AV

CC

64

DV

CC

1

AV

SS

62

TDO

/TDI

54

P3.0/S

TE0

28

P3.1/S

IMO

0/SD

A29

P3.2/S

OM

I030

P3.3/U

CLK

0/SC

L31

P3.4/U

TXD

032

P3.5/U

RX

D0

33

P3.6/U

TXD

134

P3.7/U

RX

D1

35

R1240

R1240

R1260

R1260

R121

470

R121

470

D10

LED

D10

LED

J60

CO

N12A

J60

CO

N12A

12

34

56

78

910

1112

Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

Appendix B Schematics for MIMO Antenna Switching Matrix

27

55

44

33

22

11

DD

CC

BB

AA

MIMO Radar Antenna Array

Logic Translator/ Level Shifter

VDD

_3Vee1

VDD

_3Vee1VDD

_3Vee2

VDD

_3

Vee1

VDD

_3

Vee1

Vee2

VDD

_3

VDD

_3Vee2

Vee2

VDD

_3

SW1_B_IN

SW1_A_IN

SW3_B_IN

SW3_A_IN

SW5_B_IN

SW5_A_IN

SW1_O

UT_B

SW1_O

UT_A

SW3_O

UT_B

SW3_O

UT_A

SW5_O

UT_B

SW5_O

UT_A

SW7_B_IN

SW7_A_IN

SW9_B_IN

SW9_A_IN

SW10_B_IN

SW10_A_IN

SW7_O

UT_B

SW7_O

UT_A

SW9_O

UT_B

SW9_O

UT_A

SW10_O

UT_B

SW10_O

UT_A

SW2_B_IN

SW2_A_IN

SW4_B_IN

SW4_A_IN

SW2_O

UT_B

SW2_O

UT_A

SW4_O

UT_B

SW4_O

UT_A

SW6_B_IN

SW6_A_IN

SW6_O

UT_B

SW6_O

UT_A

SW12_B_IN

SW12_A_IN

SW12_O

UT_B

SW12_O

UT_A

SW8_B_IN

SW8_A_IN

SW11_B_IN

SW11_A_IN

SW8_O

UT_B

SW8_O

UT_A

SW11_O

UT_B

SW11_O

UT_A

Title

SizeD

ocument N

umber

Rev

Date:

Sheetof

11

Title

SizeD

ocument N

umber

Rev

Date:

Sheetof

11

Title

SizeD

ocument N

umber

Rev

Date:

Sheetof

11

C8

0.1uFC

80.1uF

C2

0.1uFC

20.1uF

C3

0.1uFC

30.1uF

C7

0.1uFC

70.1uF

U4LTC

1045

U4LTC

1045

VO

H1

IN1

2

IN2

3

IN3

4

IN4

5

IN5

6

VTR

IP2

8

VTR

IP1

9

V-

10V

OL

11IS

ET

12D

ISA

BLE

13O

UT6

14O

UT5

15O

UT4

16O

UT3

17O

UT2

18

IN6

7

OU

T119

V+

20

U1LTC

1045

U1LTC

1045

VO

H1

IN1

2

IN2

3

IN3

4

IN4

5

IN5

6

VTR

IP2

8

VTR

IP1

9

V-

10V

OL

11IS

ET

12D

ISA

BLE

13O

UT6

14O

UT5

15O

UT4

16O

UT3

17O

UT2

18

IN6

7

OU

T119

V+

20

R4

20k

R4

20k

C4

0.1uFC

40.1uF

R2

20k

R2

20k

C6

0.1uFC

60.1uF

C1

0.1uFC

10.1uF

R3

20k

R3

20k

C11

0.1uFC

110.1uF

U3LTC

1045

U3LTC

1045

VO

H1

IN1

2

IN2

3

IN3

4

IN4

5

IN5

6

VTR

IP2

8

VTR

IP1

9

V-

10V

OL

11IS

ET

12D

ISA

BLE

13O

UT6

14O

UT5

15O

UT4

16O

UT3

17O

UT2

18

IN6

7

OU

T119

V+

20

U2LTC

1045

U2LTC

1045

VO

H1

IN1

2

IN2

3

IN3

4

IN4

5

IN5

6

VTR

IP2

8

VTR

IP1

9

V-

10V

OL

11IS

ET

12D

ISA

BLE

13O

UT6

14O

UT5

15O

UT4

16O

UT3

17O

UT2

18

IN6

7

OU

T119

V+

20

R1

20k

R1

20k

55

44

33

22

11

DD

CC

BB

AA

MIMO Radar Antenna Array

X-Band SP4T switches and Bias

Vee1Vee2

Vee1Vee2

Vee1Vee2

Vee1Vee2

Vee1 VIN+

Vee2

VIN+

Vee2

Vee2Vee2

Vee2

SW1_O

UT_A

SW1_O

UT_B

RFC

1

SW2_O

UT_A

SW2_O

UT_B

RFC

2

SW3_O

UT_A

SW3_O

UT_B

RFC

3

SW4_O

UT_A

SW4_O

UT_B

RFC

4

SW5_O

UT_A

SW5_O

UT_B

RFC

5

SW6_O

UT_A

SW6_O

UT_B

RFC

6

SW7_O

UT_A

SW7_O

UT_B

RFC

7

SW8_O

UT_A

SW8_O

UT_B

RFC

8

SW9_O

UT_A

SW9_O

UT_B

RFC

2R

FC1

SW10_O

UT_A

SW10_O

UT_B

RFC

4R

FC3

SW11_O

UT_A

SW11_O

UT_B

RFC

6R

FC5

SW12_O

UT_A

SW12_O

UT_B

RFC

8R

FC7

Title

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Date:

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11

Title

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Rev

Date:

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11

Title

SizeD

ocument N

umber

Rev

Date:

Sheetof

11

C115

100pFC

115100pF

U137

HM

C344LH

5U

137H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

C96

100pFC

96100pF

C102

100pFC

102100pF

C156

C C156

C

C143

0.1uFC

1430.1uF

C119

100pFC

119100pF

U117

ANTEN

NA_PIN

U117

ANTEN

NA_PIN

IN1

J23J23

1

23

45

C133

100pFC

133100pF

C114

100pFC

114100pF

C101

100pFC

101100pF

U102

ANTEN

NA_PIN

U102

ANTEN

NA_PIN

IN1

C142

10uFC

14210uF

C118

100pFC

118100pF

U24

LTC1174-5

U24

LTC1174-5

VIN6

IPGM

7

LBOU

T2

LBIN3

GND4

SW5

VOU

T1

SHN

D8

U128

ANTEN

NA_PIN

U128

ANTEN

NA_PIN

IN1

C113

100pFC

113100pF

U112

ANTEN

NA_PIN

U112

ANTEN

NA_PIN

IN1

C100

100pFC

100100pF

D3

DIO

DE ZEN

ERD

3D

IOD

E ZENER

J7J7

1

23

45

C127

100pFC

127100pF

C111

C C111

C

C155

100pF

C155

100pF

C99

C C99

C

C141

C C141

C

C112

100pFC

112100pF

U139

HM

C344LH

5U

139H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

L750uF

L750uF

U123

ANTEN

NA_PIN

U123

ANTEN

NA_PIN

IN1

C122

100pF

C122

100pF

U114

HM

C344LH

5U

114H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U108

ANTEN

NA_PIN

U108

ANTEN

NA_PIN

IN1

C104

100pF

C104

100pF

U99

HM

C344LH

5U

99H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

C160

C C160

C

C132

100pFC

132100pF

C116

100pF

C116

100pF

U109

HM

C344LH

5U

109H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U94

HM

C344LH

5U

94H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

C140

100pF

C140

100pF

C126

100pFC

126100pF

C159

100pF

C159

100pF

U116

ANTEN

NA_PIN

U116

ANTEN

NA_PIN

IN1

J8J8

1

23

45

C131

100pFC

131100pF

U127

ANTEN

NA_PIN

U127

ANTEN

NA_PIN

IN1

C95

100pFC

95100pF

U105

ANTEN

NA_PIN

U105

ANTEN

NA_PIN

IN1

U96

ANTEN

NA_PIN

U96

ANTEN

NA_PIN

IN1

C125

100pFC

125100pF

U122

ANTEN

NA_PIN

U122

ANTEN

NA_PIN

IN1

C135

C C135

C

U125

ANTEN

NA_PIN

U125

ANTEN

NA_PIN

IN1

U133

ANTEN

NA_PIN

U133

ANTEN

NA_PIN

IN1

C109

100pFC

109100pF

C130

100pFC

130100pF

U101

ANTEN

NA_PIN

U101

ANTEN

NA_PIN

IN1

C129

C C129

C

U120

ANTEN

NA_PIN

U120

ANTEN

NA_PIN

IN1

U131

ANTEN

NA_PIN

U131

ANTEN

NA_PIN

IN1

C124

100pFC

124100pF

C145

10uFC

14510uF

C108

100pFC

108100pF

U111

ANTEN

NA_PIN

U111

ANTEN

NA_PIN

IN1

U97

ANTEN

NA_PIN

U97

ANTEN

NA_PIN

IN1

D4

DIO

DE ZEN

ERD

4D

IOD

E ZENER

C134

100pF

C134

100pF

U124

HM

C344LH

5U

124H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U25

LTC1174-5

U25

LTC1174-5

VIN6

IPGM

7

LBOU

T2

LBIN3

GND4

SW5

VOU

T1

SHN

D8

C97

100pFC

97100pF

C107

100pFC

107100pF

U107

ANTEN

NA_PIN

U107

ANTEN

NA_PIN

IN1

C106

100pFC

106100pF

C128

100pF

C128

100pF

U119

HM

C344LH

5U

119H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

C138

100pFC

138100pF

C147

22uFC

14722uF

C123

C C123

C

C105

C C105

C

U95

ANTEN

NA_PIN

U95

ANTEN

NA_PIN

IN1

C137

100pFC

137100pF

U132

ANTEN

NA_PIN

U132

ANTEN

NA_PIN

IN1

U138

HM

C344LH

5U

138H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U136

HM

C344LH

5U

136H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U104

HM

C344LH

5U

104H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U126

ANTEN

NA_PIN

U126

ANTEN

NA_PIN

IN1

C117

C C117

C

C98

100pF

C98

100pF

U118

ANTEN

NA_PIN

U118

ANTEN

NA_PIN

IN1

U130

ANTEN

NA_PIN

U130

ANTEN

NA_PIN

IN1

C136

100pFC

136100pF

C144

22uFC

14422uF

C110

100pF

C110

100pF

L550uF

L550uF

C162

C C162

C

U121

ANTEN

NA_PIN

U121

ANTEN

NA_PIN

IN1

U103

ANTEN

NA_PIN

U103

ANTEN

NA_PIN

IN1

C139

100pFC

139100pF

J24J24

1

23

45

U98

ANTEN

NA_PIN

U98

ANTEN

NA_PIN

IN1

U115

ANTEN

NA_PIN

U115

ANTEN

NA_PIN

IN1

U129

HM

C344LH

5U

129H

MC

344LH5

RF41

GND12

RF33

Vee4

B5

A6

RF27

GND28

RF19

GN

D3

10

RFC

11

GN

D4

12

GN

D5

13

U113

ANTEN

NA_PIN

U113

ANTEN

NA_PIN

IN1

C158

C C158

C

C94

100pFC

94100pF

U100

ANTEN

NA_PIN

U100

ANTEN

NA_PIN

IN1

C146

0.1uFC

1460.1uF

U106

ANTEN

NA_PIN

U106

ANTEN

NA_PIN

IN1

C121

100pFC

121100pF

C161

100pF

C161

100pF

C103

100pFC

103100pF

U110

ANTEN

NA_PIN

U110

ANTEN

NA_PIN

IN1

C157

100pF

C157

100pF

C120

100pFC

120100pF

55

44

33

22

11

DD

CC

BB

AA

TANT 10uF CAPS478-3281-1-ND

MIMO Radar Antenna Array

MSP430 MCU with Controll lines

TMS TC

KTD

I

TDO

TMS

TDI

TDO

RESET

TCK

RESET

RESET

GPIO

1

GPIO

3

GPIO

5

GPIO

2

GPIO

4

GPIO

6

GPIO

7

GPIO

9

GPIO

8

GPIO

10

GPIO

1G

PIO2

GPIO

3G

PIO4

GPIO

5G

PIO6

GPIO

7G

PIO8

GPIO

9G

PIO10

DVC

CD

VCC

DVC

C

DVC

C

DVC

C

DVC

C

SW1_A_IN

SW1_B_IN

SW2_A_IN

SW2_B_IN

SW3_A_IN

SW3_B_IN

SW4_A_IN

SW4_B_IN

SW5_A_IN

SW5_B_IN

SW7_A_IN

SW7_B_IN

SW8_A_IN

SW8_B_IN

CLKIN

_1

CLKIN

_1

SW1_O

UT_A

SW2_O

UT_A

SW3_O

UT_A

SW4_O

UT_A

SW5_O

UT_A

SW6_O

UT_A

SW1_O

UT_B

SW2_O

UT_B

SW3_O

UT_B

SW4_O

UT_B

SW5_O

UT_B

SW6_O

UT_B

SW7_O

UT_A

SW8_O

UT_A

SW9_O

UT_A

SW10_O

UT_A

SW7_O

UT_B

SW8_O

UT_B

SW9_O

UT_B

SW10_O

UT_B

SW11_O

UT_A

SW12_O

UT_A

SW11_O

UT_B

SW12_O

UT_B

SW9_A_IN

SW9_B_IN

SW10_A_IN

SW10_B_IN

SW11_A_IN

SW11_B_IN

SW12_A_IN

SW12_B_IN

SW6_A_IN

SW6_B_IN

CLKIN

_2

CLKIN

_2

Title

SizeD

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Date:

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11

Title

SizeD

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Rev

Date:

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11

Title

SizeD

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umber

Rev

Date:

Sheetof

11

U141

CO

N6

U141

CO

N6

11

22

33

44

55

66

J9CO

N12A

J9CO

N12A

12

34

56

78

910

1112

D1

LED D1

LED

C9

0.1uFC

90.1uF

X132.768KH

z FC-135

X132.768KH

z FC-135

J6CO

N12A

J6CO

N12A

12

34

56

78

910

1112

J12J12

1

23

4 5

J13J13

1

23

4 5

R12

5.1MR

125.1M

D2

LED

D2

LED

R28

470

R28

470 R27

470R

27470

C10

TANT 10uF 0805

C10

TANT 10uF 0805

J10

CO

N12A

J10

CO

N12A

12

34

56

78

910

1112

U140

CO

N6

U140

CO

N6

11

22

33

44

55

66

U57

MSP430F1611_2

U57

MSP430F1611_2

P1.0/TA

CLK

12

P1.1/TA

013

P1.2/TA

114

P1.3/TA

215

P1.4/S

MC

LK16

P1.5/TA

017

P1.6/TA

118

P1.7/TA

219

P2.0/A

CLK

20

P2.1/TA

INC

LK21

P2.2/C

AO

UT/TA

022

P2.3/C

A0/TA

123

P2.4/C

A1/TA

224

P2.5/R

OS

C25

P2.6/A

DC

12CLK

/DM

AE

026

P2.7/TA

027

RS

T/NM

I58

TCK

57

TDI/TC

LK55

TMS

56

VE

RE

F+10

VR

EF+

7

VR

EF-/V

ER

EF-

11

XIN

8

XO

UT

9

XT2O

UT

52X

T2IN53

DV

SS

63P

6.0/A0

59

P6.1/A

160

P6.2/A

261

P6.3/A

32

P6.4/A

43

P6.5/A

54

P6.6/A

6/DA

C0

5

P6.7/A

7/DA

C1/S

VS

IN6

P5.0/S

TE1

44

P5.1/S

IMO

145

P5.2/S

OM

I146

P5.3/U

CLK

147

P5.4/M

CLK

48

P5.5/S

MC

LK49

P5.6/A

CLK

50

P5.7/TB

OU

TH/S

VS

OU

T51

P4.0/TB

036

P4.1/TB

137

P4.2/TB

238

P4.3/TB

339

P4.5/TB

541

P4.4/TB

440

P4.6/TB

642

P4.7/TB

CLK

43

AV

CC

64

DV

CC

1

AV

SS

62

TDO

/TDI

54

P3.0/S

TE0

28

P3.1/S

IMO

0/SD

A29

P3.2/S

OM

I030

P3.3/U

CLK

0/SC

L31

P3.4/U

TXD

032

P3.5/U

RX

D0

33

P3.6/U

TXD

134

P3.7/U

RX

D1

35

R24

100kR24

100k

55

44

33

22

11

DD

CC

BB

AA

TPS76530 requires output cap to bebetween 300m and 20 ohms ESR

MIMO Radar Antenna Array

MSP430 Bias

3V_R

EG

_OU

T

3V_R

EG

_OU

T

VD

D_3

DV

CC

VIN

+V

IN+

VIN

+

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

C59

0.1uFC

590.1uF

U61

U61

PG

2

GN

D3

EN

4IN

5

IN6

OU

T7

OU

T8

NC

1

C64

4.7uF 0805C

644.7uF 0805

C63

TAN

T 47uF - 718-1608-1-ND

C63

TAN

T 47uF - 718-1608-1-ND

J4JAC

K 37341

J4JAC

K 37341

1 2

L4F-BE

AD

L4F-BE

AD

C62

0.1uFC

620.1uF

C61

0.1uFC

610.1uF

C65

0.1uFC

650.1uF

L6F-BE

AD

L6F-BE

AD

J3JAC

K 37341

J3JAC

K 37341

1 2

C60

0.1uFC

600.1uF

55

44

33

22

11

DD

CC

BB

AA

MIMO Radar Antenna Array

X-Band LNA

VD

D2

VD

D3

VD

D1

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

C8

1000pfC

81000pf

U1

HM

C963LC

4

U1

HM

C963LC

4

GN

D_1

1

GN

D_2

2

RFIN

3

GN

D_3

4

NC

_15

NC

_26

NC_37

NC_48

NC_59

NC_1310

NC_611

NC_712

NC

_813

NC

_914

GN

D_4

15R

FOU

T16

GN

D_6

17G

ND

_518

VDD319NC_1020VDD221NC_1122VDD123NC_1224

25

GND_BOT

C3

2.2uFC

32.2uF

U3

SM

A_conn

U3

SM

A_conn

IN2

1GND_23

GND_1

U2SM

A_conn

U2SM

A_conn

IN2

1

GND_2

3GND_1

C6

2.2uFC

62.2uF

C4

100pfC

4100pfC

1100pfC

1100pf

C9

100pfC

9100pf

C7

2.2uFC

72.2uF

C2

1000pfC

21000pf

C5

1000pfC

51000pf

55

44

33

22

11

DD

CC

BB

AA

MIMO Radar Antenna Array

LNA Bias

VD

D2

VD

D1

VD

D3

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

Title

Size

Docum

ent Num

berR

ev

Date:

Sheet

of

A

11

U19

sma-bott

U19

sma-bott

GN

D_1

1

GND_22

C28

0.01UC

280.01U

C27

0.1uFC

270.1uF

C26

0.1uFC

260.1uF

R3

TBD

R3

TBD

C25

0.1uFC

250.1uF

C24

0.1uFC

240.1uF

L5F-BE

AD

L5F-BE

AD

L4F-BE

AD

L4F-BE

AD

R2

TBD

R2

TBD

J1JAC

K 37341

J1JAC

K 37341

1 2

U18

LT1763

U18

LT1763

AD

J2

OU

T1

BY

P4

IN8

SH

ND

5

GN

D_1

3

GND6

GND_27

U20

sma-bott

U20

sma-bott

GN

D_1

1

GND_22

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Final Report (DURIP) MIMO Radar Testbed for Waveform Adaptive Sensing Research

References

[1] E.Fishler, A. Haimovich, R. Blum, L. Cimini, D. Chizhik, and R. Valenzuela Spatial diversity in radars-models

and detection performance IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 54, no. 3, pp.

823–838, March 2006.

[2] E. Fishler, A. Haimovich, R. Blum, L. Cimini, D. Chizhik, and R. Valenzuela Performance of MIMO radar

systems: advantages of angular diversity Conference Record of the Thirty-Eighth Asilomar Conference on

Signals, Systems and Computers vol. 1, pp. 305–309, Nov. 2004

[3] N. H. Lehmann, A. M. Haimovich, R. S. Blum, and L. Cimin High resolution capabilities of MIMO radar

Fortieth Asilomar Conference on Signals, Systems and Computers, pp. 25–30, Oct. Nov. 2006

[4] E. Fishler, A. Haimovich, R. Blum, D. Chizhik, L. Cimini, and R. Valenzuela MIMO radar: an idea whose time

has come Proceedings of the IEEE Radar Conference. pp. 71–78, Apr. 2004.

[5] C.W. Rossler, E.Ertin, and R.L. Moses A software defined radar system for joint communication and sensing

IEEE Radar Conference (RADAR), pp.1050–1055, 23-27 May 2011.

[6] Mark T. Frankford, Ninoslav Majurec, and Joel T. Johnson Software-Defined Radar for MIMO and Adaptive

Waveform Application IEEE Radar Conference, pp.724–728, 10-14 May 2010 .

[7] Jason Yu, Matthew Reynolds, Jeffrey Krolik An Indoor S-band Radar Receive Array Testbed IEEE Radar

Conference, pp.712–717, 10-14 May 2010.

[8] M. R. Bell Information theory and radar waveform design IEEE Transactions on Information Theory, vol. 39,

no. 5, pp. 1578–1597, Sep 1993.

[9] J. R. Guerci and S. U. Pillai Theory and application of optimum transmit-receive radar IEEE International

Radar Conference, pp. 705–710, 2000.

[10] S. Baskar and E. Ertin A software defined radar platform for waveform adaptive MIMO radar research IEEE

International Radar Conference, 2015.

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