project: ieee p802.15 working group for wireless personal area networks (wpans)

Jan 2005

Mick Aoki, Taiyo Yuden/TRDASlide 1

doc.: IEEE 15-05-0015-00-004a

Submission

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Submission Title: [TaiyoYuden/TRDA Small Form Factor Ceramic Antenna for Low Rate alt-PHY]Date Submitted: [4 January, 2005]Source: [Hironori Okado(1), Mick Aoki(2)] Company [(1)Taiyo Yuden Co.,Ltd., (2)TRDA Inc.] Address [(1)8-1 Sakaecho Takasaki- shi Gunma 370-8522 Japan, (2)10180 Telesis Court Suite120, San Diego, CA 92121] Voice [(1)+81-27-324-2311, (2)+1-858-554-0755] Fax[(1)+81-27-324-2326, (2)+1-858-455-7578] E-mail [(1)[email protected], (2)[email protected]] Re: []Abstract: [This presentation is introduction to small form factor ceramic antenna for low rate alt-PHY.]

Purpose: [Proposing a RF front-end for standardization by 802.15.4a .]Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Taiyo Yuden / TRDASmall Form Factor Ceramic Antenna

for Low Rate alt-PHY

Hironori OkadoTaiyo Yuden Co.,Ltd.

Mick AokiTRDA Inc. (Taiyo Yuden R&D Center of America)

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Contents

• Requirement for RF Front-end• Antenna performance• Filter performance• Conclusion

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Contents


Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Technical requirements for 802.15.4a

• Bit rate : 1kb/s to ≥1Mb/s• Range : 30m - • Interference susceptibility• Low power consumption• Location awareness• Regulatory matters

　　　　　　 UWB is well suited to 802.15.4a

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Structure of 802.15.4a UWB Radio

BPF BEFRFBB

ChipBalun

MACChip

Antenna

PHY

RF Front End

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

UWB Band and Other Wireless Standards

MHz MHz2400 4900 5835

MHz2500MHz

Cordless phoneMicrowave Oven

802.15.1/3/4802.11b/g

Cordless phone802.11a

Cell phone

f3.1GHz 10.6GHz

UWB UWB

4.9GHz 5.835GHz

1st generation UWB will use below 802.11a band2nd generation UWB needs to consider interference from/to 802.11a

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Requirements for Antenna

• Non-Directional• Small Form Factor as SD Memory Card• Robust• High Gain

TG4a Technical Requirement (Doc: IEEE 15-04-0198-02-004a)P802.15.4a Alt PHY Selection Criteria (Doc: IEEE 15-04-0232-16-004a)

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Requirements for Filter

• High Attenuation for Interferences- WLANs (2.4 and 5GHz)- WPANs (802.15.1, 802.15.3, 802.15.4)- Cordless phones (2.4GHz and 5.8GHz)- Cellular phones- Microwave ovens

• Low Insertion Loss• Small Form Factor

TG4a Technical Requirement (Doc: IEEE 15-04-0198-02-004a)P802.15.4a Alt PHY Selection Criteria (Doc: IEEE 15-04-0232-16-004a)

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Contents


Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Definition of Antenna Gain

Total radiation energy for total polarization radiation

Theoretical limit at zero-loss condition

How to increase gain?

+a(dB) Specific Direction Becomes Big

-a(dB) Other Direction Becomes Weak

Ideal Radiation Pattern of Non-Directional Antenna (Isotropic Radiation)

１Isotropicradiation

0dBi1

１

+a (dB)

-a (dB)

The Theoretical Maximum Gain for Non-directional Antenna is 0dBi

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Developed Antenna

• Ceramic Antenna is Small. - Element Size : 8 x 6 x 1 mm- Ground Size : 20 x 25 mm (Antenna A)

(Size of SD memory : 24 x 32 mm)• Designed for RF tag application• ICs and components can be mounted on board.

Antenna needs at least one ground plane.

BA C D

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Measurement System

Measured by multi-probe antenna measurement system Antenna Efficiency and Radiation Pattern

31pcs Probes

Antenna

Rotate

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Element Location (1)

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Antenna A

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Edge

Center

A

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Element Location (2)

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Edge

Center

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Influence of Side Ground

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Antenna A

VSWR is degraded by Antenna side ground.

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

A

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

VSWR (1)

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Antenna A

Antenna B

A

B

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

VSWR (2)

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Antenna C

1

2

3

4

5

6

3.0 4.0 5.0

Frequency [GHz]

VS

WR

Antenna D

C

D

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Efficiency

-10-9-8-7-6-5-4-3-2-10

2 3 4 5 6

Frequency [GHz]

Effi

cien

cy [d

B]

Antenna AAntenna BAntenna CAntenna D

2.4GHz Band7~8dB Attenuation

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Radiation Pattern (1)XY-plane @4 GHz

(-X)

(-Y) (+Y)

unit: dBi (+X)YZ-plane @4 GHz

(+Z)

(-Y) (+Y)

unit: dBi (-Z)ZX-plane @4 GHz

(+Z)

(+X) (-X)

unit: dBi (-Z)

-45-35-25-15

-55

Ave(t,p)thetaphi

-45-35-25-15

-55

Ave(t,p)thetaphi

+Y

+X

+Zphi=0

180

90 270

-45-35-25-15

-55

Ave(t,p)thetaphi

theta=0

180

*phi=18090

*phi=0 90

+Y

+X

+Z

*phi=270 90

theta=0

*phi=9090

180

+Y

+X

+Z

Antenna A

A

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission


(-X)

(-Y) (+Y)


(+Z)

(-Y) (+Y)


(+Z)

(+X) (-X)

unit: dBi (-Z)

-45-35-25-15

-55

Ave(t,p)thetaphi

-45-35-25-15

-55

Ave(t,p)thetaphi

+Y

+X

+Zphi=0

180

90 270

-45-35-25-15

-55

Ave(t,p)thetaphi

theta=0

180

*phi=18090

*phi=0 90

+Y

+X

+Z

*phi=270 90

theta=0

*phi=9090

180

+Y

+X

+Z

Antenna B

B

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission


(-X)

(-Y) (+Y)


(+Z)

(-Y) (+Y)


(+Z)

(+X) (-X)

unit: dBi (-Z)

-45-35-25-15

-55

Ave(t,p)thetaphi

-45-35-25-15

-55

Ave(t,p)thetaphi

+Y

+X

+Zphi=0

180

90 270

-45-35-25-15

-55

Ave(t,p)thetaphi

theta=0

180

*phi=18090

*phi=0 90

+Y

+X

+Z

*phi=270 90

theta=0

*phi=9090

180

+Y

+X

+Z

Antenna C

C

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission


(-X)

(-Y) (+Y)


(+Z)

(-Y) (+Y)


(+Z)

(+X) (-X)

unit: dBi (-Z)

-45-35-25-15

-55

Ave(t,p)thetaphi

-45-35-25-15

-55

Ave(t,p)thetaphi

+Y

+X

+Zphi=0

180

90 270

-45-35-25-15

-55

Ave(t,p)thetaphi

theta=0

180

*phi=18090

*phi=0 90

+Y

+X

+Z

*phi=270 90

theta=0

*phi=9090

180

+Y

+X

+Z

Antenna D

D

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Group Delay

Antenna Group Delay

-5-4-3-2-1012345

2 4 6 8 10 12

Frequency[GHz]

Grou

p Dela

y[nse

c]

Sample : Antenna A

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Impulse Response (1)

Transmitted Signal at input of Double Ridge Horn Antenna500ps/Div 10mV/Div

1 ftImpulse Generator Oscilloscope

UWB AntennaDouble Ridge Horn Antenna

Anechoic Chamber

ATT

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission


Received Signal by Antenna A500ps/Div 10mV/Div

Received Signal by Antenna B500ps/Div 10mV/Div

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission


Received Signal by Antenna C500ps/Div 10mV/Div

Received Signal by Antenna D500ps/Div 10mV/Div

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Contents


Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Developed Filter

• Ceramic Filter is Small and Robust • Band Pass Filter for 1st generation• Band Elimination Filter against 5GHz band• Performance

-Low Insertion loss-High Attenuation

• Chips need Balun

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Band Pass Filter (BPF)

Frequency Responce

-60-50-40-30-20-10

0

2 3 4 5 6 7 8Frequency (GHz)

S11

/ S21

(dB)

S11S21

Dimension : 3.2 x 1.6 x 1.15 mm

For 1st generation chip set

Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Band Elimination Filter (BEF)

Frequency Response

-60-50-40-30-20-10

0


S11

/ S21

(dB)

S11S21


Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

BalunFrequency Responce

-40

-30

-20

-10

0

2 3 4 5 6Frequency (GHz)

(dB)

ReturnLossInsertionLoss


Frequency Response

-40

-30

-20

-10

0


(dB)

Return LossInsertion Loss


Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Contents


Jan 2005


doc.: IEEE 15-05-0015-00-004a

Submission

Conclusion

• Proposed UWB Antenna meets requirements. - Non-directional, Small, Robust, High Gain- Flat Group Delay, Good Impulse Response

• The Antenna Element can be used in the corner of RF tag or module. ICs and components can be mounted on board. There is less wasted space.

• Proposed Filter has enough performance to avoid interference.

• Accelerate Time to Market. The Antenna and Filters are Available Now.

project: ieee p802.15 working group for wireless personal area networks (wpans)

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