March 2004 CRL & CRL-UWB Consortium Slide1 Submission doc.:IEEE802.15-04-0115- 00-003a roject: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPAN roject: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPAN n Title: [CRL & CRL-UWB Consortium , Lower-band UWB Antenna] itted: [March 15,2004] Kamya Yekeh Yazdandoost, Ryuji Kohno] Company [(1) Communications Laboratory (CRL), (2) CRL-UWB Consortium] ’s Address [3-4, Hikarino-oka, Yokusuka, 239-0847, Japan] 81-46-847-5435], FAX: [+81-46-847-5431] [email protected], [email protected]] P802.15 Alternative PHY Call for Proposals, IEEE P802.15-02/327r7] [ Ultra-Wideband Antenna for Lower Band of UWB system.] [Antenna for 802.15.TG3a] This document has been prepared to assist the IEEE P802.15. It is offered a discussion and is not binding on the contributing individual(s) or organiza ial in this document is subject to change in form and content after further ibutor(s) reserve(s) the right to add, amend or withdraw material contained [The contributor acknowledges and accepts that this contribution becomes the of IEEE and may be made publicly available by P802.15.]
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March 2004
CRL & CRL-UWB ConsortiumSlide1Submission
doc.:IEEE802.15-04-0115-00-003a
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: [CRL & CRL-UWB Consortium , Lower-band UWB Antenna]Date Submitted: [March 15,2004]Source: [Kamya Yekeh Yazdandoost, Ryuji Kohno] Company [(1) Communications Research Laboratory (CRL), (2) CRL-UWB Consortium] Connector’s Address [3-4, Hikarino-oka, Yokusuka, 239-0847, Japan] Voice: [+81-46-847-5435], FAX: [+81-46-847-5431] E-mail: [[email protected], [email protected]] Re: [IEEE P802.15 Alternative PHY Call for Proposals, IEEE P802.15-02/327r7]Abstract: [ Ultra-Wideband Antenna for Lower Band of UWB system.]Purpose: [Antenna for 802.15.TG3a]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.]
March 2004
CRL & CRL-UWB ConsortiumSlide2Submission
doc.:IEEE802.15-04-0115-00-003a
LOWER-BAND UWB ANTENNA
Kamya Yekeh Yazdandoost , Ryuji Kohno
Communications Research Laboratory (CRL) & CRL-UWB Consortium
presented by Yuko RikutaCommunications Research Laboratory (CRL)
March 2004
CRL & CRL-UWB ConsortiumSlide3Submission
doc.:IEEE802.15-04-0115-00-003a
Contents
• Introduction
• Antenna Design
• Results
• Conclusions
March 2004
CRL & CRL-UWB ConsortiumSlide4Submission
doc.:IEEE802.15-04-0115-00-003a
Introduction • Compact size while providing acceptable: 1- VSWR 2- Bandwidth 3- Gain 4- Efficiency• Omni-directional pattern• To be suitable for on chip design, with easy impedance matching• Light weight• Low cost Therefore, the UWB antenna design remains to be the major face in
the progress of UWB technology
March 2004
CRL & CRL-UWB ConsortiumSlide5Submission
doc.:IEEE802.15-04-0115-00-003a
Antenna Design
Prototype Size: 25 × 24 × 1 mm
25 mm
24 mm 1 mm
i. Substrate: FR4 (εr = 4.4 , tanθ = 0.02)
ii. Patch: Copper (18 um)
iii. Feed: Transmission Line 50 Ω
March 2004
CRL & CRL-UWB ConsortiumSlide6Submission
doc.:IEEE802.15-04-0115-00-003a
Prototype
Total size of antenna, including the tapered transmission line.
March 2004
CRL & CRL-UWB ConsortiumSlide7Submission
doc.:IEEE802.15-04-0115-00-003a
ResultsVSWR
Frequency (GHz)
VS
WR
March 2004
CRL & CRL-UWB ConsortiumSlide8Submission
doc.:IEEE802.15-04-0115-00-003a
Results
Frequency (GHz)
Return Loss R
etur
n L
oss
(dB
)
March 2004
CRL & CRL-UWB ConsortiumSlide9Submission
doc.:IEEE802.15-04-0115-00-003a
Results
Frequency (GHz)
Gain G
ain
(dB
i)
March 2004
CRL & CRL-UWB ConsortiumSlide10Submission
doc.:IEEE802.15-04-0115-00-003a
Results Radiation Pattern (dBi)
F = 3.1 (GHz)
φ = 0o
φ = 90o
March 2004
CRL & CRL-UWB ConsortiumSlide11Submission
doc.:IEEE802.15-04-0115-00-003a
Results Radiation Pattern (dBi)
F = 4.1 (GHz)
φ = 0o
φ = 90o
March 2004
CRL & CRL-UWB ConsortiumSlide12Submission
doc.:IEEE802.15-04-0115-00-003a
Results Radiation Pattern (dBi)
F = 5.1 (GHz)
φ = 0o
φ = 90o
March 2004
CRL & CRL-UWB ConsortiumSlide13Submission
doc.:IEEE802.15-04-0115-00-003a
Results3D Radiation Pattern
March 2004
CRL & CRL-UWB ConsortiumSlide14Submission
doc.:IEEE802.15-04-0115-00-003a
Conclusions
Ultimate radiation pattern for wireless device
Fulfilled the required bandwidth for lower band
Small antenna on FR4 substrate, which is suitable for lower . frequency band of UWB system, 3.1-5.1( GHz)
Average gain of 1(dBi) was shown to be achievable over the the frequency range
Easy to design and cheap
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