prime antenna inc. antenna test team adam straubinger alan condino thanh hong ronnie berg sam...
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![Page 1: PRIME Antenna Inc. Antenna Test Team Adam Straubinger Alan Condino Thanh Hong Ronnie Berg Sam Gregorio](https://reader036.vdocument.in/reader036/viewer/2022062516/56649d385503460f94a11b5b/html5/thumbnails/1.jpg)
PRIME Antenna Inc.PRIME Antenna Inc.
Antenna Test TeamAntenna Test Team
Adam StraubingerAdam Straubinger
Alan CondinoAlan Condino
Thanh HongThanh Hong
Ronnie BergRonnie BergSam GregorioSam Gregorio
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Background Information
•Antennas
•Serves as a “transducer”
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RequirementsRequirements• Test: Test: Power vs Power vs radiation angle radiation angle
Power vsPower vsfrequency patternsfrequency patterns
• Compare results with Compare results with established dataestablished data
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Major Tasks/System Major Tasks/System ComponentsComponents
• Design and build an anechoic test Design and build an anechoic test chamberchamber
• Power SupplyPower Supply
• Motor and Motor DriverMotor and Motor Driver
• Integrate test equipment into the Integrate test equipment into the anechoic test chamberanechoic test chamber
• Test, gather, analyze and interpret Test, gather, analyze and interpret datadata
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SYSTEM COMPONENTS
•Anechoic Test Chamber•Motor and Motor Driver Power Supply•Power Supply•Computer/Hardware Interface•Testing Program•Test Equipment and Interface
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Antenna Range Block Antenna Range Block diagramdiagram
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• Anechoic• Wooden Box
TEST CHAMBER
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ROTARY TURNTABLE
•Height adjustable from 12”–24”
•4” machinist’s rotary table
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Motor DriveMotor Drive Stepper MotorStepper Motor
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Block Diagram of Motor Block Diagram of Motor DriveDrive
MODE 0
B-
POWER TRANSISTOR
MODE 1
UNIPOLAR STEPPERMOTOR
Q1TIP122
SENSERESISTORS
0
10VPIC16F628
M+
A-
Q1TIP122
SCALE RESISTORS
Q1TIP122
B+Q1TIP122
123
4 5 6
A+
DIRECTIONSTEP
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Manual Manual Motor Motor
ControlControl
SW SPDT
STEP
0
DIRECTION
MANUAL
PIC12F675
PCCONTROL
SW PUSHBUTTON
R2
FORWARD
VCC
VCC
REVERSE
MOTOR DRIVE
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Power SupplyPower Supply
• The Power supply The Power supply converts 115V 60 Hz converts 115V 60 Hz input from a wall input from a wall socket and is socket and is connected to a step connected to a step down transformer down transformer module, rectified and module, rectified and filtered to +10V and filtered to +10V and +5V.+5V.
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Block Diagram of Power Block Diagram of Power SupplySupply
OUTPUT
0
+12V
J 1
P L U G A C M A L E
1 2
3
D 1L T1 0 2 9
ACTIVE
LT1085-5
0
NEUTRAL
F 1
1 2 0 V 4 A
R 2
1 k0
FRONTPANEL
C 41 0 0 u F
+5 V O U T
LT1085-5
D 2
0
C 22 2 u F
5VREGULATOR
R 1
3 9 00
10VREGULATOR
0
S W 1
S P S T
115V60Hz
C 31 0 u F
INPUT
C 11 0 u F
12VUNREGULATED
0
+1 0 V O U T
D 3
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Block Diagram of Optical Block Diagram of Optical SensorSensor
+ 5V
R
C 2
. 1 u FTCYS5201
1
2
3
V OLTA GE OUT
Blocked path=5V
Unblocked path=0.5V
path
(see note)
note
AND
R 1
1 k
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Graphic User Graphic User InterfaceInterface
• Automated antenna testing through Automated antenna testing through LabVIEW graphic user interface (GUI).LabVIEW graphic user interface (GUI).
• Antenna position and GPIB control for Antenna position and GPIB control for data acquisition.data acquisition.
• Test data collected is processed and Test data collected is processed and displayed graphically. displayed graphically.
• Laboratory Virtual Instrument Laboratory Virtual Instrument Engineering Workbench. Engineering Workbench. http://www.ni.comhttp://www.ni.com
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Graphic User InterfaceGraphic User Interface
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Automated Antenna Automated Antenna TestingTesting
• Start by selecting Start by selecting test frequency test frequency and power.and power.
• Select azimuth Select azimuth test parameters. test parameters.
• Ready to TestReady to Test
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Automated Antenna Automated Antenna TestingTesting
• Select desired Select desired instrumentation.instrumentation.
• Select data Select data achieving achieving options. options.
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Automated Automated Antenna Antenna TestingTesting
• Begin Auto TestBegin Auto Test
• Measured Power Measured Power and testing and testing progress is progress is displayed.displayed.
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Automated Antenna Automated Antenna TestingTesting
• End End of of TestTest
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Single Single StepStep Mode Mode
• Press STEP Press STEP for each for each step. step.
• Test Test equipment equipment is controlled is controlled manuallymanually
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Error CheckingError Checking
• Press Press STEP for STEP for each each step. step.
• Test Test equipmeequipment is nt is controlled controlled manuallymanually
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Test Signal Test Signal Reference Reference
• Signal Signal generatiogeneration to 3.2 n to 3.2 GHzGHz
• Power Power output output from -136 from -136 to +10 to +10 dBm.dBm.
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Power Measurement Power Measurement
• Signal Signal measurememeasurement to 6.2 nt to 6.2 GHzGHz
• -166 dBm -166 dBm sensitivity.sensitivity.
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Review of ExpensesReview of Expenses
Chamber/ContructionChamber/Contruction $380$380
Rotary Table Rotary Table $129$129
Stepper Control Stepper Control $40$40
RF Cables/Connectors RF Cables/Connectors $50$50
Total Costs Total Costs $599$599
Subsidized Costs Subsidized Costs $349$349
Final ExpensesFinal Expenses $250$250
Microsoft Project Document
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ConclusionsConclusions
AccomplishmentsAccomplishments
•A viable automated RF testing A viable automated RF testing chamberchamber
•Accurate automated testing Accurate automated testing system system
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Questions?Questions?