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Paper Abstract and Keywords
Presentation 2010-04-09 11:20
Simple Design Equation of a Tap Feed for a Normal-Mode Helical Antenna
Nguyen Quoc Dinh, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Koji Nakatani (The Yokohama Rubber Co., Ltd) AP2010-3
Abstract (in Japanese) (See Japanese page) 
(in English) In order to apply a normal-mode helical antenna(NMHA) to actual radio equipments, a simple impedance matching structure becomes inevitable. Authors developed a simple tap feed structure that was composed around the helical wire. However, the design equation was not clarified.
In this report, mutual inductances between the NMHA and the tap that are the most important factor of a tap feed are theoretically clarified. Next, dependences of mutual inductances to NMHA parameters are deduced basec on calculated results. Finally, a simple desien equation of the impedance step up ratio that is inversly proportional to the mutual inductances is established.
Keyword (in Japanese) (See Japanese page) 
(in English) Normal-Mode Helical Antenna / Tap feed / Inpedance Matching / Mutual Inductance / Step up Ratio / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 1, AP2010-3, pp. 9-14, April 2010.
Paper # AP2010-3 
Date of Issue 2010-04-02 (AP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee AP  
Conference Date 2010-04-09 - 2010-04-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Doshisha Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP 
Paper Information
Registration To AP 
Conference Code 2010-04-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simple Design Equation of a Tap Feed for a Normal-Mode Helical Antenna 
Sub Title (in English)  
Keyword(1) Normal-Mode Helical Antenna  
Keyword(2) Tap feed  
Keyword(3) Inpedance Matching  
Keyword(4) Mutual Inductance  
Keyword(5) Step up Ratio  
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1st Author's Name Nguyen Quoc Dinh  
1st Author's Affiliation National Defense Academy (National Defense Academy)
2nd Author's Name Naobumi Michishita  
2nd Author's Affiliation National Defense Academy (National Defense Academy)
3rd Author's Name Yoshihide Yamada  
3rd Author's Affiliation National Defense Academy (National Defense Academy)
4th Author's Name Koji Nakatani  
4th Author's Affiliation The Yokohama Rubber Co., Ltd (The Yokohama Rubber Co., Ltd)
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Speaker Author-1 
Date Time 2010-04-09 11:20:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2010-3 
Volume (vol) vol.110 
Number (no) no.1 
Page pp.9-14 
#Pages
Date of Issue 2010-04-02 (AP) 


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