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Paper Abstract and Keywords
Presentation 2007-01-26 09:25
Evaluation of Mobile Terminal Antenna Characteristics in Multipath Environments Using Ray-trace Method
Kazuhiro Komiya, Yoshio Ebine (DoCoMo Technology), Tetsuro Imai (NTT DoCoMo) AP2006-123
Abstract (in Japanese) (See Japanese page) 
(in English) We evaluate the characteristics of a mobile antenna in multipath environments using ray-trace method. The simulation results indicate that distribution of arrival waves in a vertical plane spreads widely and this spread distribution varies with dependence on the height of base station and that of the surrounding buildings. In these propagation environments, we found that effective gain of a mobile antenna is inferior in spite of using a high gain (narrow beamwidth) antenna. Moreover, it is shown that the inferior tendency of the effective antenna gain can be estimated by an approximation of the Gamma distribution.
Keyword (in Japanese) (See Japanese page) 
(in English) Ray-trace Method / Distribution of Arrival Waves / Mobile Terminal Antenna / Effective Gain / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 491, AP2006-123, pp. 77-82, Jan. 2007.
Paper # AP2006-123 
Date of Issue 2007-01-18 (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 AP2006-123

Conference Information
Committee AP  
Conference Date 2007-01-25 - 2007-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukui Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2007-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Mobile Terminal Antenna Characteristics in Multipath Environments Using Ray-trace Method 
Sub Title (in English)  
Keyword(1) Ray-trace Method  
Keyword(2) Distribution of Arrival Waves  
Keyword(3) Mobile Terminal Antenna  
Keyword(4) Effective Gain  
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1st Author's Name Kazuhiro Komiya  
1st Author's Affiliation DoCoMo Technology,Inc. (DoCoMo Technology)
2nd Author's Name Yoshio Ebine  
2nd Author's Affiliation DoCoMo Technology,Inc. (DoCoMo Technology)
3rd Author's Name Tetsuro Imai  
3rd Author's Affiliation NTT DoCoMo,Inc. (NTT DoCoMo)
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Speaker Author-1 
Date Time 2007-01-26 09:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2006-123 
Volume (vol) vol.106 
Number (no) no.491 
Page pp.77-82 
#Pages 6 
Date of Issue 2007-01-18 (AP) 

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