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| Presentation | 2007-05-18 15:50 Confiuration of switched-element polyhedral array antennas Ayako Takahashi, Toshikazu Hori, Mitoshi Fujimoto (Univ. Fukui), Kiyotake Ando, Yozo Takeda (JSAT)  AP2007-30 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A conformal array antenna arranged on the curved surface features to steer a beam in the hemisphere. However, many elements are required to realize both performance of high gain and wide beam steering. In such case, the configuration of a spherical array antenna tends to be complicated because each element is individually fed by feeding network. Therefore, a polyhedral array antenna arranged on a polyhedron can be suited because of production costs. The polyhedral array antenna is composed of sub-arrays, and the sub-array is composed of several antenna elements arranged on the co-plane. This paper proposes the configuration of a polyhedral array antenna arranged on a polyhedron so as to steer a beam in the hemisphere. Here, the relation between the size of an array antenna and the minimum directive gain of the proposed array antenna is discussed. Moreover, in order to extend the steering angle of a sub array, the phase control for each sub array is introduced. The minimum directive gain of the soccer ball type array is the largest among the examined polyhedrons, and the 9dBi gain is obtained as the minimum gain when d=0.7λ. And, it is shown that the minimum directive gain of the soccer ball type array is improved about 4dB by introducing the phase control. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Switching Array / Conformal Array / Directive gain / Polyhedron / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 35, AP2007-30, pp. 97-100, May 2007. | |
| Paper # | AP2007-30 | |
| Date of Issue | 2007-05-10 (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 | AP2007-30 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2007-05-17 - 2007-05-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kochi Univ. of Tech. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2007-05-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Confiuration of switched-element polyhedral array antennas |
| Sub Title (in English) | |
| Keyword(1) | Switching Array |
| Keyword(2) | Conformal Array |
| Keyword(3) | Directive gain |
| Keyword(4) | Polyhedron |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Ayako Takahashi |
| 1st Author's Affiliation | University of Fukui (Univ. Fukui) |
| 2nd Author's Name | Toshikazu Hori |
| 2nd Author's Affiliation | University of Fukui (Univ. Fukui) |
| 3rd Author's Name | Mitoshi Fujimoto |
| 3rd Author's Affiliation | University of Fukui (Univ. Fukui) |
| 4th Author's Name | Kiyotake Ando |
| 4th Author's Affiliation | JSAT Corporation (JSAT) |
| 5th Author's Name | Yozo Takeda |
| 5th Author's Affiliation | JSAT Corporation (JSAT) |
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| Speaker | Author-1 |
| Date Time | 2007-05-18 15:50:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2007-30 |
| Volume (vol) | vol.107 |
| Number (no) | no.35 |
| Page | pp.97-100 |
| #Pages | 4 |
| Date of Issue | 2007-05-10 (AP) |
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