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Paper Abstract and Keywords
Presentation 2012-11-16 10:00
Prototype of an X/Ka-Band Primary Radiator for Satellite-Borne Cassegrain Antennas
Yuichi Kato, Takehiko Kobayashi (Tokyo Denki Univ.), Kenichi Kagoshima, Shigeki Takeda (Ibaraki Univ.), Atsushi Tomiki, Tomoaki Toda (JAXA) AP2012-106
Abstract (in Japanese) (See Japanese page) 
(in English) Dual (X and Ka) band downlink operation is demanded scientific satellite missions, to facilitate much higher data rate and to increase the available radio channels. A combinations of a corrugated horn (for X band) and a disk-on-rod antenna (for Ka band) have used as a primary feed for a satellite-borne dual-band reflector antenna, but its volume was not satisfactorily small. The anothers proposed a combination of a sequential four-element array of rectangular microstrip antennas fed with L-shape probes for X band and a four-element array of helical antennas for Ka-band, to realize a small-volume, light-weight circular-polarized primary radiator. This paper reports the performances― VSWR, XPD , and radiation patterns of a prototype radiator.
Keyword (in Japanese) (See Japanese page) 
(in English) X/Ka-band / primary radiator / Cassegrain antennas / helical antennas / sequential array / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 285, AP2012-106, pp. 77-82, Nov. 2012.
Paper # AP2012-106 
Date of Issue 2012-11-08 (AP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 RCS  
Conference Date 2012-11-14 - 2012-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Denki University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AP 
Conference Code 2012-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Prototype of an X/Ka-Band Primary Radiator for Satellite-Borne Cassegrain Antennas 
Sub Title (in English)  
Keyword(1) X/Ka-band  
Keyword(2) primary radiator  
Keyword(3) Cassegrain antennas  
Keyword(4) helical antennas  
Keyword(5) sequential array  
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1st Author's Name Yuichi Kato  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Takehiko Kobayashi  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
3rd Author's Name Kenichi Kagoshima  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ.)
4th Author's Name Shigeki Takeda  
4th Author's Affiliation Ibaraki University (Ibaraki Univ.)
5th Author's Name Atsushi Tomiki  
5th Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
6th Author's Name Tomoaki Toda  
6th Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
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Speaker Author-1 
Date Time 2012-11-16 10:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2012-106 
Volume (vol) vol.112 
Number (no) no.285 
Page pp.77-82 
#Pages
Date of Issue 2012-11-08 (AP) 


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