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| Presentation | 2009-07-09 13:50 Design of On-glass Antennas for FM Diversity Systems Seungbeom Ahn, Youngchul Kay (Hongik Univ.), Junghoon Oh (Hyundai Kia Motos), Ikmo Park (Ajou Univ.), Hosung Choo (Hongik Univ.)  AP2009-66 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The monopole type antennas such as the conventional /4 monopole, tuned monopole, roof-mounted micro-antenna and shark fin antenna have been widely used for FM radio reception in various types of vehicles. These antennas, however, suffer from lack of durability and undesirable appearance. To solve these problems on-glass antennas have been used in various vehicles. But these on-glass antennas generally exhibit relatively low signal reception performance due to their poor impedance matching and low antenna gain especially in urban environment where multi-path fading exists. Recently, to improve the receiving performance, some luxury vehicles employ diversity on-glass antenna systems that incorporate two separated antennas in the rear window. In this paper, we report on the channel capacity and diversity gain of the on-glass rear window antennas. Using the radiation pattern of each antenna and the transfer matrix, the correlation coefficient and channel capacity are obtained. Then we observe the variation of the channel capacity by examining three basic design structures that consist of two separated bent striplines. The results show that the distance between the feed positions are the major factor that affects on the channel capacity. In addition the polarization of the two antennas gets more important when the distance between the feeds is greater than a certain threshold value. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | On-glass antennas / Diversity antennas / Channel capacity / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 117, AP2009-66, pp. 127-130, July 2009. | |
| Paper # | AP2009-66 | |
| Date of Issue | 2009-07-01 (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 | AP2009-66 |
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| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2009-07-08 - 2009-07-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Otaru city, Hokkaido |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AP |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2009-07-AP-SAT |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of On-glass Antennas for FM Diversity Systems |
| Sub Title (in English) | |
| Keyword(1) | On-glass antennas |
| Keyword(2) | Diversity antennas |
| Keyword(3) | Channel capacity |
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| 1st Author's Name | Seungbeom Ahn |
| 1st Author's Affiliation | Hongik University (Hongik Univ.) |
| 2nd Author's Name | Youngchul Kay |
| 2nd Author's Affiliation | Hongik University (Hongik Univ.) |
| 3rd Author's Name | Junghoon Oh |
| 3rd Author's Affiliation | Hyundai Kia Motos (Hyundai Kia Motos) |
| 4th Author's Name | Ikmo Park |
| 4th Author's Affiliation | Ajou University (Ajou Univ.) |
| 5th Author's Name | Hosung Choo |
| 5th Author's Affiliation | Hongik University (Hongik Univ.) |
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| Speaker | Author-5 |
| Date Time | 2009-07-09 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2009-66 |
| Volume (vol) | vol.109 |
| Number (no) | no.117 |
| Page | pp.127-130 |
| #Pages | 4 |
| Date of Issue | 2009-07-01 (AP) |
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