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| Presentation | 2008-03-14 13:50 Mutual couping by the shape of small antennas Hiroyuki Arai (Yokohama Natl. Univ.)  AP2007-193 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | For the applications of diversity reception and MIMO antennas for small terminals in mobile communication systems, small mutual coupling and correlation between antennas are required for the array with small antenna spacing. The antenna arrangement with orthogonal polarizations is effective to reduce mutual coupling between antenna elements, however, this arrangement can not apply to all the applications and the other techniques are introduced. This report discusses the mutual coupling between small antennas using the definition of antenna clearance proposed to examine the electrical volume of antennas. We present the relation between mutual coupling and variation ratio of input impedance used to evaluate the antenna clearance of test antennas. We also present the numerical examples for the mutual coupling of small antenna arrays and discuss the guideline to reduce the mutual coupling. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Small antenna / Mutual coupling / Clearance / Input impedance / Array antenna / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 543, AP2007-193, pp. 119-122, March 2008. | |
| Paper # | AP2007-193 | |
| Date of Issue | 2008-03-06 (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 | AP2007-193 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2008-03-13 - 2008-03-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nanzan Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2008-03-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Mutual couping by the shape of small antennas |
| Sub Title (in English) | |
| Keyword(1) | Small antenna |
| Keyword(2) | Mutual coupling |
| Keyword(3) | Clearance |
| Keyword(4) | Input impedance |
| Keyword(5) | Array antenna |
| Keyword(6) | |
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| 1st Author's Name | Hiroyuki Arai |
| 1st Author's Affiliation | Yokohama National University (Yokohama Natl. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-03-14 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2007-193 |
| Volume (vol) | vol.107 |
| Number (no) | no.543 |
| Page | pp.119-122 |
| #Pages | 4 |
| Date of Issue | 2008-03-06 (AP) |
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