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Paper Abstract and Keywords
Presentation 2008-03-14 14:25
An Elaborate MOM Analysis of Normal Mode Helical Antennas and Design Charts
Naoki Inagaki, Tomohiro Maruchi, Katsuyuki Fujii (Nanzan Univ.) AP2007-194
Abstract (in Japanese) (See Japanese page) 
(in English) Normal mode helical antennas, typical small antennas, has the peculiar strucure difficult to be directly treated by the numerical simulators. The radius and the pitch are much smaller than a wavelength, and the most available simulators cannot model the structure with high degree of fidelity even with the segment size as small as a hundredth wavelength. This paper ingeniously found the electric current expansion functions and the weighting functions used in the method of moments which enables the segment size to be two helical turns without deteriorating the accuracy. This sophisticated algorithm allows the analysis of the normal mode helical antennas with wide range of structural paremters in short computational time. The disign charts for normal mode helical antennas have been provided for the resonance, the length-shortenning factor, and the radiation resistance.
Keyword (in Japanese) (See Japanese page) 
(in English) normal mode helical antenna / method of moments / resonance / antenna length shortenning factor / desing chart / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 543, AP2007-194, pp. 123-128, March 2008.
Paper # AP2007-194 
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 AP2007-194

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) An Elaborate MOM Analysis of Normal Mode Helical Antennas and Design Charts 
Sub Title (in English)  
Keyword(1) normal mode helical antenna  
Keyword(2) method of moments  
Keyword(3) resonance  
Keyword(4) antenna length shortenning factor  
Keyword(5) desing chart  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Naoki Inagaki  
1st Author's Affiliation Nanzan University (Nanzan Univ.)
2nd Author's Name Tomohiro Maruchi  
2nd Author's Affiliation Nanzan University (Nanzan Univ.)
3rd Author's Name Katsuyuki Fujii  
3rd Author's Affiliation Nanzan University (Nanzan Univ.)
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Speaker Author-1 
Date Time 2008-03-14 14:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-194 
Volume (vol) vol.107 
Number (no) no.543 
Page pp.123-128 
#Pages 6 
Date of Issue 2008-03-06 (AP) 

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