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| Presentation | 2010-07-21 15:15 Design of a 45-degree Linearly-polarized Hollow-waveguide Slot Two-dimensional Array Antenna with a Full-corporate-feed Circuit in the Lower Layer Takashi Tomura, Yohei Miura, Miao Zhang, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.)  AP2010-47 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We propose a 45-degree linearly-polarized configuration, placing inclined slots on a double-layer full-corporate-feed hollow-waveguide slot array antenna. In this paper, we confirm that cross polarization is suppressed by the radiation slot width by the analysis of a 4-element sub-array. We analyze a 256-element array composed of the designed 4-element sub-arrays and the full-corporate-feed circuit. The reflection is less than －14 dB over 4.2 % bandwidth where the cross polarization is less than －30 dB.The directivity is 32.9 dBi with 82 % aperture efficiency at 61.5 GHz. The first side lobe level in E-plane is low, －26 dB; however, －16 dB grating lobes are generated in the 55-degree direction. We confirm that the grating lobe generation results from amplitude and phase difference between neighbor slots and can suppress up to －37 dB by thickening the thickness of the exciting slots. However, the bandwidth becomes narrow (3.1 %) and trade-off relationship between the grating lobe level and the bandwidth is found. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | waveguide slot array / full-corporate-feed / diffusion bonding / linear polarization / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 135, AP2010-47, pp. 53-58, July 2010. | |
| Paper # | AP2010-47 | |
| Date of Issue | 2010-07-14 (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 | AP2010-47 |
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| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2010-07-21 - 2010-07-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kitami Inst. Tech. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AP, SAT, Organized Session |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2010-07-AP-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of a 45-degree Linearly-polarized Hollow-waveguide Slot Two-dimensional Array Antenna with a Full-corporate-feed Circuit in the Lower Layer |
| Sub Title (in English) | |
| Keyword(1) | waveguide slot array |
| Keyword(2) | full-corporate-feed |
| Keyword(3) | diffusion bonding |
| Keyword(4) | linear polarization |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takashi Tomura |
| 1st Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 2nd Author's Name | Yohei Miura |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 3rd Author's Name | Miao Zhang |
| 3rd Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 4th Author's Name | Jiro Hirokawa |
| 4th Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
| 5th Author's Name | Makoto Ando |
| 5th Author's Affiliation | Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2010-07-21 15:15:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2010-47 |
| Volume (vol) | vol.110 |
| Number (no) | no.135 |
| Page | pp.53-58 |
| #Pages | 6 |
| Date of Issue | 2010-07-14 (AP) |
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