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Paper Abstract and Keywords
Presentation 2007-12-21 13:30
Designing of Spherical Monopole Antenna for UWB
Hirotoshi Yamada, Toshitatsu Suzuki, Somboon Theerawisitpong, Noboru Morita (NIT) SANE2007-96
Abstract (in Japanese) (See Japanese page) 
(in English) UWB (Ultra Wide Band) applications need broadband antenna which covers the authorized band from 3.1 to 10.6GHz by FCC. On the other hand, many broadband antennas have been developed historically, and one of them is spherical monopole antenna. For spherical monopole antenna, however, there have been few reports to know characteristics. This paper reports measured characteristics of spherical monopole antenna for UWB. The antenna consists of 20mm-dia sphere and 120mm-dia disk made of aluminum. It is shown first that the input impedance varies relatively in smooth for wide band and depends on distance between the sphere and the disk. Next, as that distance is adjusted, broader bandwidth of 2.8-16.5GHz with VSWR<2 including UWB is obtained. Finally, radiation pattern is presented.
Keyword (in Japanese) (See Japanese page) 
(in English) UWB / Broadband antennas / Spherical antennas / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 407, SANE2007-96, pp. 7-11, Dec. 2007.
Paper # SANE2007-96 
Date of Issue 2007-12-14 (SANE) 
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 SANE  
Conference Date 2007-12-21 - 2007-12-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Nippon Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radar and its applications, general 
Paper Information
Registration To SANE 
Conference Code 2007-12-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Designing of Spherical Monopole Antenna for UWB 
Sub Title (in English)  
Keyword(1) UWB  
Keyword(2) Broadband antennas  
Keyword(3) Spherical antennas  
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1st Author's Name Hirotoshi Yamada  
1st Author's Affiliation Nippon Institute of Technology (NIT)
2nd Author's Name Toshitatsu Suzuki  
2nd Author's Affiliation Nippon Institute of Technology (NIT)
3rd Author's Name Somboon Theerawisitpong  
3rd Author's Affiliation Nippon Institute of Technology (NIT)
4th Author's Name Noboru Morita  
4th Author's Affiliation Nippon Institute of Technology (NIT)
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Speaker Author-1 
Date Time 2007-12-21 13:30:00 
Presentation Time 25 minutes 
Registration for SANE 
Paper # SANE2007-96 
Volume (vol) vol.107 
Number (no) no.407 
Page pp.7-11 
#Pages 5 
Date of Issue 2007-12-14 (SANE) 

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