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Paper Abstract and Keywords
Presentation 2007-10-18 13:00
Band Gap Characteristics of Finite EBG Structure on Finite Ground Plane
Yuki Kawakami, Toshikazu Hori, Mitoshi Fujimoto (Univ. of Fukui), Ryo Yamaguchi, Keizo Cho (NTT DoCoMo) AP2007-86
Abstract (in Japanese) (See Japanese page) 
(in English) EBG (Electromagnetic Band-Gap) structures composed of metal patches arranged with small intervals have the frequency-band-rejection characteristics, and it may reduce the undesired radiation of electromagnetic waves. When we apply EBG structures to antennas, the structures are finite and it is thought that the structures have a band-gap characteristic unlike infinite EBG structure.
In this paper, we take up mushroom type EBG structures and clarify the frequency-band-rejection characteristics of the finite EBG structures on the finite ground plane in compare with that of the infinite EBG structures and the semiinfinite EBG structures. Based on the calculated results, it is shown that the band-gap frequency of infinite EBG structures is different from that of semiinfinite EBG structures. It is also found that as the number of the EBG elements increases, the band-gap frequency rises and the frequency band becomes wide. Finally it is clarified that the band-gap characteristics depends on the size of the ground plane in the case of the finite EBG structures on the finite ground plane.
Keyword (in Japanese) (See Japanese page) 
(in English) Mushroom-type EBG / reflection characteristics / frequency-band-rejection / finite structure / finite ground plane / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 260, AP2007-86, pp. 1-4, Oct. 2007.
Paper # AP2007-86 
Date of Issue 2007-10-11 (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)
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Conference Information
Committee AP  
Conference Date 2007-10-18 - 2007-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Hirosaki Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) etc. 
Paper Information
Registration To AP 
Conference Code 2007-10-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Band Gap Characteristics of Finite EBG Structure on Finite Ground Plane 
Sub Title (in English)  
Keyword(1) Mushroom-type EBG  
Keyword(2) reflection characteristics  
Keyword(3) frequency-band-rejection  
Keyword(4) finite structure  
Keyword(5) finite ground plane  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuki Kawakami  
1st Author's Affiliation University of Fukui (Univ. of Fukui)
2nd Author's Name Toshikazu Hori  
2nd Author's Affiliation University of Fukui (Univ. of Fukui)
3rd Author's Name Mitoshi Fujimoto  
3rd Author's Affiliation University of Fukui (Univ. of Fukui)
4th Author's Name Ryo Yamaguchi  
4th Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo)
5th Author's Name Keizo Cho  
5th Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo)
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Speaker Author-1 
Date Time 2007-10-18 13:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-86 
Volume (vol) vol.107 
Number (no) no.260 
Page pp.1-4 
#Pages 4 
Date of Issue 2007-10-11 (AP) 

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