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| Presentation | 2011-01-21 13:10 Circularly-Polarized Aperture Array Antenna with a Corporate-feed Hollow-waveguide Circuit in the Lower Layer Yohei Miura (JRC/Tokyo Inst. of Tech.), Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.), Kazufumi Igarashi, Goro Yoshida (JRC)  AP2010-155 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have developed the double-layer corporate-feed waveguide slot array with more than 32dBi gain and about 80% antenna efficiency over 4.8GHz in the 60GHz-band. In this paper, we propose a circularly polarized aperture array by placing circularly-polarized elements on the above antenna. A hexagonal radiating aperture for the element is designed, and the good axial ratio characteristics are achieved in the boresight. We analyze the full structure of the 16x16-element array that combines the 2x2-element subarrays and the 64-way divider. The reflection is less than -14dB over 4.9% bandwidth where the axial ratio is less than 2.5dB. High antenna efficiency of 88.7% has been obtained at 61.5GHz by the antenna gain of 33.3dBi including the losses. The 1dB-down gain bandwidth is 6.8%. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | waveguide / array antenna / corporate-feed / circular polarized wave / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 371, AP2010-155, pp. 131-136, Jan. 2011. | |
| Paper # | AP2010-155 | |
| Date of Issue | 2011-01-13 (AP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | AP2010-155 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2011-01-20 - 2011-01-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Saga Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AP |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2011-01-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Circularly-Polarized Aperture Array Antenna with a Corporate-feed Hollow-waveguide Circuit in the Lower Layer |
| Sub Title (in English) | |
| Keyword(1) | waveguide |
| Keyword(2) | array antenna |
| Keyword(3) | corporate-feed |
| Keyword(4) | circular polarized wave |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yohei Miura |
| 1st Author's Affiliation | Japan Radio Co., Ltd./Tokyo Institute of Technology (JRC/Tokyo Inst. of Tech.) |
| 2nd Author's Name | Jiro Hirokawa |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 3rd Author's Name | Makoto Ando |
| 3rd Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 4th Author's Name | Kazufumi Igarashi |
| 4th Author's Affiliation | Japan Radio Co., Ltd. (JRC) |
| 5th Author's Name | Goro Yoshida |
| 5th Author's Affiliation | Japan Radio Co., Ltd. (JRC) |
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| Speaker | Author-1 |
| Date Time | 2011-01-21 13:10:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2010-155 |
| Volume (vol) | vol.110 |
| Number (no) | no.371 |
| Page | pp.131-136 |
| #Pages | 6 |
| Date of Issue | 2011-01-13 (AP) |
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