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| Presentation | 2008-06-19 15:30 Fabrication of a Slotted Waveguide Array at 94GHz by Diffusion Bonding of Laminated Thin Plates Miao Zhang, Jiro Hirokawa, Makoto Ando (Tokyo Tech.)  AP2008-35 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A slotted waveguide array is newly fabricated by diffusion bonding of laminated thin plates. This new fabrication method is a promising one of low cost, because of high-precision etching technique in low price. And the die with very high cost, which is crucial in die-casting as the conventional mass-production, is unnecessary as ever. Perfect electric connection is realized between slotted plate and grooved waveguide base by diffusion bonding, therefore both the choke structure and the antenna assembly using crews can be abbreviated together. According to the processing conditions, the thickness of slotted plate and that of coupling windows are increased to 0.3mm and 1.0mm, respectively. All these effects of large thickness are precisely evaluated and taken into account during the antenna design. The radiating characteristics of resonant slots are not degenerated much. On the other hand, the frequency characteristics of power dividing and reflection become narrow-band because non-resonant coupling windows are applied in the feed circuit. In this trial fabrication, the material of laminated thin plates with the thickness of 0.1mm is selected as stainless, which has been proven before. As the measured results, a high antenna efficiency of 44% with the total reflection below -11.6dB and peak gain of 30dBi is realized for the first time around 94GHz. As the detail of antenna losses, the reflection loss and the aperture efficiency are -0.31dB and -1.14dB, respectively. The conductor loss of -2.12dB is also estimated. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Slotted Waveguide Array / 94GHz Band Antenna / Laminated Thin Plates / Diffusion Bonding / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 90, AP2008-35, pp. 35-40, June 2008. | |
| Paper # | AP2008-35 | |
| Date of Issue | 2008-06-12 (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 | AP2008-35 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2008-06-19 - 2008-06-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2008-06-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fabrication of a Slotted Waveguide Array at 94GHz by Diffusion Bonding of Laminated Thin Plates |
| Sub Title (in English) | |
| Keyword(1) | Slotted Waveguide Array |
| Keyword(2) | 94GHz Band Antenna |
| Keyword(3) | Laminated Thin Plates |
| Keyword(4) | Diffusion Bonding |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Miao Zhang |
| 1st Author's Affiliation | Tokyo Tech. (Tokyo Tech.) |
| 2nd Author's Name | Jiro Hirokawa |
| 2nd Author's Affiliation | Tokyo Tech. (Tokyo Tech.) |
| 3rd Author's Name | Makoto Ando |
| 3rd Author's Affiliation | Tokyo Tech. (Tokyo Tech.) |
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| Speaker | Author-1 |
| Date Time | 2008-06-19 15:30:00 |
| Presentation Time | 20 minutes |
| Registration for | AP |
| Paper # | AP2008-35 |
| Volume (vol) | vol.108 |
| Number (no) | no.90 |
| Page | pp.35-40 |
| #Pages | 6 |
| Date of Issue | 2008-06-12 (AP) |
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