March 2004 doc IEEE 802 15 04 0115
- Slides: 14
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Project: IEEE P 802. 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: [yazdandoost@crl. go. jp, kohno@crl. go. jp] Re: [IEEE P 802. 15 Alternative PHY Call for Proposals, IEEE P 802. 15 -02/327 r 7] Abstract: [ Ultra-Wideband Antenna for Lower Band of UWB system. ] Purpose: [Antenna for 802. 15. TG 3 a] Notice: [This document has been prepared to assist the IEEE P 802. 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 P 802. 15. ] Submission Slide 1 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a LOWER-BAND UWB ANTENNA Kamya Yekeh Yazdandoost , Ryuji Kohno Communications Research Laboratory (CRL) & CRL-UWB Consortium presented by Yuko Rikuta Communications Research Laboratory (CRL) Submission Slide 2 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Contents • • Introduction Antenna Design Results Conclusions Submission Slide 3 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a 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 Ø Therefore, the UWB antenna design remains to be the major face in the progress of UWB technology Submission Slide 4 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Antenna Design Prototype Size: 25 × 24 × 1 mm 24 mm 1 mm 25 mm i. Substrate: FR 4 (er = 4. 4 , tand = 0. 02) ii. Patch: Copper (18 mm) iii. Feed: Transmission Line 50 W Submission Slide 5 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Prototype Total size of antenna, including the transmission line. Submission Slide 6 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results VSWR Frequency (GHz) Submission Slide 7 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results Return Loss (d. B) Return Loss Frequency (GHz) Submission Slide 8 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results Gain (d. Bi) Gain Frequency (GHz) Submission Slide 9 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results Radiation Pattern (d. Bi) F = 3. 1 (GHz) f = 0 o f = 90 o Submission Slide 10 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results Radiation Pattern (d. Bi) F = 4. 1 (GHz) f = 0 o f = 90 o Submission Slide 11 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results Radiation Pattern (d. Bi) F = 5. 1 (GHz) f = 0 o f = 90 o Submission Slide 12 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Results 3 D Radiation Pattern Submission Slide 13 CRL & CRL-UWB Consortium
March 2004 doc. : IEEE 802. 15 -04 -0115 -01 -003 a Conclusions ü Small antenna on FR 4 substrate, which is suitable for lower. frequency band of UWB system, 3. 1 -5. 1( GHz) ü Easy to design and cheap ü Fulfilled the required bandwidth for lower band ü Average gain of 1(d. Bi) was shown to be achievable over the frequency range ü Ultimate radiation pattern for wireless device Submission Slide 14 CRL & CRL-UWB Consortium
