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Paper Abstract and Keywords
Presentation 2009-04-09 10:25
Development of 6.7 GHz band receiver for VERA relescope
Kimihiro Kimura, Kouhei Matsumoto, Hideo Ogawa (Osaka Prefecture Univ.), Hideki Ujihara, Mareki Honma (NAOJ), Tomohiko Mitani (Kyoto Univ.) AP2009-2
Abstract (in Japanese) (See Japanese page) 
(in English) We developed the 6.7GHz band receiver to observe the maser that the methanol radiated, and installed it in VERA(VLBI Exploration of Radio Astrometry) telescopes. This receiver consists of a multi mode horn, a circular polarizer and low noise amplifiers. We designed the dual mode horn to have a good aperture efficiency.
In this paper, We introduce calculations of antenna optical system, measurements of dual mode horn, observations of methanol maser from Star-Forming Region(W3OH) and improvements from dual mode horn to four-mode horn.
Keyword (in Japanese) (See Japanese page) 
(in English) Radio astronomy / 6.7GHz band / VERA / Cassegrain antenna / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 1, AP2009-2, pp. 7-11, April 2009.
Paper # AP2009-2 
Date of Issue 2009-04-02 (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 AP2009-2

Conference Information
Committee AP  
Conference Date 2009-04-09 - 2009-04-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Prefecture Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP 
Paper Information
Registration To AP 
Conference Code 2009-04-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of 6.7 GHz band receiver for VERA relescope 
Sub Title (in English)  
Keyword(1) Radio astronomy  
Keyword(2) 6.7GHz band  
Keyword(3) VERA  
Keyword(4) Cassegrain antenna  
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1st Author's Name Kimihiro Kimura  
1st Author's Affiliation Osaka Prefecuture University (Osaka Prefecture Univ.)
2nd Author's Name Kouhei Matsumoto  
2nd Author's Affiliation Osaka Prefecuture University (Osaka Prefecture Univ.)
3rd Author's Name Hideo Ogawa  
3rd Author's Affiliation Osaka Prefecuture University (Osaka Prefecture Univ.)
4th Author's Name Hideki Ujihara  
4th Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
5th Author's Name Mareki Honma  
5th Author's Affiliation National Astronomical Observatory of Japan (NAOJ)
6th Author's Name Tomohiko Mitani  
6th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2009-04-09 10:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2009-2 
Volume (vol) vol.109 
Number (no) no.1 
Page pp.7-11 
#Pages 5 
Date of Issue 2009-04-02 (AP) 

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