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Paper Abstract and Keywords
Presentation 2007-03-08 11:20
A study on miniaturization of 2GHz band antenna for handset utilizing magnetic materials by topology optimization
Akira Matsuzaki, Hisashi Morishita (Department of Electrical Engineering national Defence Academy), Tsuyoshi Nomura (Toyota central R&D Labs.,), Kazuo Sato (Toyota central R&D Labs.) AP2006-146
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, topology design of magnetic materials for miniaturization of built-in antenna for handsets is presented. In particular, the planer inverted F antenna (PIFA), which is a typical built-in antenna for handsets is designed in contemplation of lowering resonance frequency. The density approach is applied to the topology optimization in order to optimize the topology of magnetic material. The Finite-Difference Time-Domain (FDTD) method is used to analyze of electromagnetic field, and the adjoint variable method (AVM) is used to analyze the design sensitivity. As a result, it is confirmed that the optimal configuration of the magnetic materials can be obtained by using topology optimization approach.
Keyword (in Japanese) (See Japanese page) 
(in English) Topology optimization / Adjoint variable method / Density approach / Finite-Difference Time-Domain method / Magnetic material / Miniaturization of antenna / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 561, AP2006-146, pp. 17-20, March 2007.
Paper # AP2006-146 
Date of Issue 2007-03-01 (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 AP2006-146

Conference Information
Committee AP  
Conference Date 2007-03-08 - 2007-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Taiwan (Yuan Ze Univ.) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2007-03-AP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on miniaturization of 2GHz band antenna for handset utilizing magnetic materials by topology optimization 
Sub Title (in English)  
Keyword(1) Topology optimization  
Keyword(2) Adjoint variable method  
Keyword(3) Density approach  
Keyword(4) Finite-Difference Time-Domain method  
Keyword(5) Magnetic material  
Keyword(6) Miniaturization of antenna  
Keyword(7)  
Keyword(8)  
1st Author's Name Akira Matsuzaki  
1st Author's Affiliation National Defence Academy (Department of Electrical Engineering national Defence Academy)
2nd Author's Name Hisashi Morishita  
2nd Author's Affiliation National Defence Academy (Department of Electrical Engineering national Defence Academy)
3rd Author's Name Tsuyoshi Nomura  
3rd Author's Affiliation Toyota central R&D Labs.,inc (Toyota central R&D Labs.,)
4th Author's Name Kazuo Sato  
4th Author's Affiliation Toyota central R&D Labs.,inc (Toyota central R&D Labs.)
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Speaker Author-1 
Date Time 2007-03-08 11:20:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2006-146 
Volume (vol) vol.106 
Number (no) no.561 
Page pp.17-20 
#Pages 4 
Date of Issue 2007-03-01 (AP) 

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