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| Presentation | 2008-03-13 11:10 Characterization of the Radio Link of Body-Worn Helical Antennas With Regard To the Antenna Location, Radiation Pattern, and Polarization at 430MHz Koichi Ogawa, Satoru Amari, Atsushi Yamamoto (Matsushita Electric)  AP2007-175 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents the path loss characteristics of body-worn helical antennas with regard to the antenna location, radiation pattern, and polarization in the 430 MHz band. Using a small helical antenna with a well defined figure-of-eight radiation pattern and polarization with sufficiently large radiation efficiency we have taken an analytical approach to characterize the radio link, in order to gain an understanding of the path loss characteristics needed to design of body-worn antenna systems. Further to our investigation, we include a discussion about the radiation patterns of body-worn antennas that provide smaller path loss. Furthermore, experiments were carried out to confirm the validity of the analysis. It is concluded from the study that, in body-worn radio communication systems, it is advantageous from the path loss point of view that the maximum radiation of the antenna is directed longitudinally along the human body, with the polarization state set normal to the surface of the body. These findings can be used as guidelines for designing body-worn antennas for WBAN systems that provide smaller path loss | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Body-worn antenna / Wireless body area network (WBAN) / Path Loss / Helical antenna / Human phantom / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 543, AP2007-175, pp. 13-18, March 2008. | |
| Paper # | AP2007-175 | |
| 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 | AP2007-175 |
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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) | Characterization of the Radio Link of Body-Worn Helical Antennas With Regard To the Antenna Location, Radiation Pattern, and Polarization at 430MHz |
| Sub Title (in English) | |
| Keyword(1) | Body-worn antenna |
| Keyword(2) | Wireless body area network (WBAN) |
| Keyword(3) | Path Loss |
| Keyword(4) | Helical antenna |
| Keyword(5) | Human phantom |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Koichi Ogawa |
| 1st Author's Affiliation | Matsushita Electric Industrial Co., Ltd. (Matsushita Electric) |
| 2nd Author's Name | Satoru Amari |
| 2nd Author's Affiliation | Matsushita Electric Industrial Co., Ltd. (Matsushita Electric) |
| 3rd Author's Name | Atsushi Yamamoto |
| 3rd Author's Affiliation | Matsushita Electric Industrial Co., Ltd. (Matsushita Electric) |
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| Speaker | Author-1 |
| Date Time | 2008-03-13 11:10:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2007-175 |
| Volume (vol) | vol.107 |
| Number (no) | no.543 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2008-03-06 (AP) |
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