Paper Abstract and Keywords |
Presentation |
2013-01-23 16:40
Study on the Helmet Antenna for Disaster Takuma Nakao, Tsutomu Ito, Noriyuki Kagiyama, Hisashi Morishita (National Defense Academy) AP2012-134 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
When we use a radio transceiver for a disaster (150 MHz band), one hand is detained by a talk so far. In fact, there are major restrictions of rescue operations in such a case. Therefore, we propose the structure that a transceiver, antenna and microphone are mounted on the helmet for disaster prevention which has already been served. In particular, since the wavelength is 2 m for 150 MHz, it is difficult to configure the antenna on the limited space of the helmet. Thus, we focus a folded dipole antenna that has the wideband characteristic and can be easily installed on the helmet, and fundamental characteristic is analyzed. Moreover, since the antenna is placed in the vicinity of the human head, we consider the restraint of radiation to the head direction using the human head model. As a result, we have established the method to lower the resonant frequency in the limited space of the helmet. Moreover, by loading the conductor plate inside of the helmet, we have confirmed that the radio wave toward the head is restricted. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Folded dipole antenna / Helmet for disaster prevention / lower the resonant frequency / Restraint of radiation / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 384, AP2012-134, pp. 69-74, Jan. 2013. |
Paper # |
AP2012-134 |
Date of Issue |
2013-01-16 (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 |
AP2012-134 |
Conference Information |
Committee |
AP |
Conference Date |
2013-01-23 - 2013-01-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hotel Merieges (Miyazaki City) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Antennas and Progation |
Paper Information |
Registration To |
AP |
Conference Code |
2013-01-AP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study on the Helmet Antenna for Disaster |
Sub Title (in English) |
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Keyword(1) |
Folded dipole antenna |
Keyword(2) |
Helmet for disaster prevention |
Keyword(3) |
lower the resonant frequency |
Keyword(4) |
Restraint of radiation |
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1st Author's Name |
Takuma Nakao |
1st Author's Affiliation |
National Defense Academy (National Defense Academy) |
2nd Author's Name |
Tsutomu Ito |
2nd Author's Affiliation |
National Defense Academy (National Defense Academy) |
3rd Author's Name |
Noriyuki Kagiyama |
3rd Author's Affiliation |
National Defense Academy (National Defense Academy) |
4th Author's Name |
Hisashi Morishita |
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National Defense Academy (National Defense Academy) |
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Speaker |
Author-1 |
Date Time |
2013-01-23 16:40:00 |
Presentation Time |
25 minutes |
Registration for |
AP |
Paper # |
AP2012-134 |
Volume (vol) |
vol.112 |
Number (no) |
no.384 |
Page |
pp.69-74 |
#Pages |
6 |
Date of Issue |
2013-01-16 (AP) |
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