1. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Antenna Design for mmW WPAN System] Date Submitted: [ 18 March 2004] Source: [Reed Fisher] Company [Oki Electric Industry Co., Ltd.] Address [2451E. Maddox Rd. Buford, GA 30519 USA] Voice:[+1-770-271-0529] E-Mail:[reedfisher@juno.com] [Seiji Nishi] Company [Oki Electric Industry Co., Ltd.] Address [3-4 Hikari-no-oka, Yokosuka, Kanagawa 239-0847, Japan] Voice:[+81-46-847-5148] Fax :[+81-46-847-5149] E-Mail:[nishi646@oki.com] [Hiroyo Ogawa] Company [Communication Research Laboratory, Incorporated Administrative Agency] Address [3-4 Hikarino-oka, Yokosuka, Kanagawa, 239-09847 Japan.] Voice: [81-46-847-5066], FAX: [81-46-847-5079] E-Mail:[hogawa@crl.go.jp] Re : [] Abstract:[Description of Proposed technical requirements for mm-Wave WPAN ] Purpose:[Contribution for millimeter-wave interest group ] 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.

2. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 2 Antenna Design for millimeter-Wave WPAN System

3. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 3 Basic Oki/CRL system based on 802.15.3a requirements Oki/CRL WPAN information distribution system APT1APT2APT3 MT MT(out of service) MT Contents Server IP network Spot-type ad hoc Information Distribution system MT Ref:IEEE802.15-03/119r4 APT = Access Point Terminal MT = Mobile Terminal

4. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 4 Base Band (BB) & IF processing Input data Packet distribute MAC control RF Σ Tx Rx BB & IF processing BBIF Channel #1 f1f1 Channel code/decode Modulator /Demodulator Channel #2 f2f2 Channel #4 f4f4 1266MHz 1422MHz 1768MHz 156 MHz f1f1 f2f2 f3f3 f4f4 Frequency allocation of IF band BPF Σ Modulator /Demodulator Channel code/decode Channel code/decode Modulator /Demodulator Ref:IEEE802.15-03/119r4

5. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 5 RF processing Transmission Single RF carrier is used. Available Transmission method : -Single Side band (SSB) :Basic proposal -Double Side band (DSB):Optional proposal Reception of side band transmission Complete cancellation of phase-noise and frequency -offset by self-heterodyne (square law) detection IF input IF output fcfc f c +f i f c -f i BB LNA 2B2B ReceiverTransmitter Local leak DSB mixer fcfc PtPt PrPr f fifi B B T fifi IM2 ( )2 fcfc f c +f i BSSB DSB Ref:IEEE802.15-03/119r4

6. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 6 8x8 elements and 2x2 elements circular waveguide array antennas have been developed for millimeter-wave ad hoc wireless access system. To realize single side band self-heterodyne scheme with small size, these antennas have built-in 5stage waveguide filters. The antenna gain of more than 25dBi is measured for 8x8 element antenna, and the loss of 5stage filter is less than 1.0dB. Overview

7. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 7 2x2 Elements Antenna 70GHz band LO:73.0GHz IF: 1.5±0.31GHz 8x8 elements antenna 60GHz band no1 LO:62.9GHz IF:1.5±0.31GHz 60GHz band no2 LO:65.9GHz IF:1.5±0.31GHz Type of Antenna for Millimeter-Wave Ad-Hoc Access System III

8. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 8 Outline drawing of 2x2 circular wave guide array antenna with built-in filter. Size is 40mmx24mmx11mm. Photograph of 8x8 circular waveguide array antenna with built-in filter. Size is 45.6mmx45.6mmx11mm Appearance

9. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 9 Aim of Design Circular waveguide array antenna Wide frequency bandwidth High antenna gain Rectangular waveguide 5 stage filter Low insertion loss High rejection for rejection band Circular waveguide array antenna with built-in filter High antenna gain Low insertion loss High rejection for rejection band Small size Filter design Pass band: LO and LSB Rejection band: USB and 2LSB Filters are designed without adjustment.

10. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 10 Antenna Characteristics - 60GHz band 8x8 element antenna - Polarization : Linear More than 25dBi antenna gain is obtained in the unlicensed frequency band (59-67GHz)

11. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 11 Antenna Characteristics - 60GHz band 8x8 element antenna - Polarization : Linear

12. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 12 Antenna Characteristics - 70GHz band 2x2 element antenna - Polarization : Right Handed Circular Polarization

13. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 13 Antenna Characteristics - 70GHz band 2x2 element antenna - Polarization : Right Handed Circular Polarization

14. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 14 Antenna Characteristics - 70GHz band 2x2 element antenna - Polarization : Right Handed Circular Polarization

15. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 15 Antenna Characteristics - 70GHz band 2x2 element antenna - Axial ratio measurement About 1m apart

16. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 16 Filter Characteristics -5 stage rectangular waveguide filter- The insertion loss in pass band (LO and LSB) is lower than –2dB. The rejection for USB is higher than –30dB.

17. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 17 Filter Characteristics -5 stage rectangular waveguide filter- The insertion loss in pass band (LO and LSB) is lower than –2dB. The rejection for USB is higher than –30dB.

18. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 18 Characteristics of antenna with built-in filter

19. doc.: IEEE 802.15-04/0097r2-mmwi Submission March, 2004 Reed Fisher, Seiji Nishi Oki, Hiroyo Ogawa CRLSlide 19 We developed the 2x2 element circular polarized (RHCP) antenna with built-in filter for 70GHz band ad hoc wireless link, and 8x8 element linear polarized antenna with built-in filter for 60GHz band wireless link and good characteristics are obtained. The antenna gain of 8x8 element antenna is as large as 25.5dBi without filter. The loss of the filter for 70GHz band wireless link in pass band is lower than 1.0dB. The rejection for USB is larger than 30dB. These results confirmed that the circular waveguide array antenna is suitable for broadband millimeter-wave wireless system. Also we realized very small size antenna with built-in filter. The size of the 2x2 element antenna with built-in filter is 40mmx24mmx11mm, and that of the 8x8 element antenna is as small as 45.6mmx45.6mmx11mm Conclusion