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Paper Abstract and Keywords
Presentation 2022-11-18 11:10
Phase measurement and adjustment of reflector antenna with beam waveguide feeds
Shin-ichi Yamamoto, Hiroto Ado, Ryuya Seki, Yasuhiro Nishioka (Mitsubishi Electric Corp.) EMT2022-64
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the use of multiple 32-m class medium-sized reflector antennas arranged in an array configuration has been considered as an alternative to 70-m class large reflector antennas. In the literature, it is assumed that the phase is adjusted by signal processing in the receiving system, but when used as a transmitting antenna, it is necessary to know the passing phase of each reflector antenna and correct it. In many cases, the scale of antennas assumed here has a beam waveguide system. The beam waveguide feeding system has a long propagation path length from the transmitter or receiver, and there are large individual differences among antennas. Therefore, to adjust the radiation phase of reflector antennas with a beam waveguide feeding system, this paper proposes a method for measuring the transmission phase of the reflector antennas. A reflected plate is placed in the center hole at the center of the primary reflector, and the reflection phase at the primary radiator horn is measured and half of it is used as the transmission phase. The proposed method was verified by actual measurements using calculated values and a simplified model. Furthermore, when the reflection phase was measured in a reflector antenna with an actual beam waveguide feeding system, a phenomenon that the phase fluctuated with AZ rotation was observed.
Keyword (in Japanese) (See Japanese page) 
(in English) Reflector antenna / Beam waveguide feeds / Transmission phase / Measurement / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 256, EMT2022-64, pp. 111-116, Nov. 2022.
Paper # EMT2022-64 
Date of Issue 2022-11-10 (EMT) 
ISSN Online edition: ISSN 2432-6380
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 EMT2022-64

Conference Information
Committee EMT IEE-EMT  
Conference Date 2022-11-17 - 2022-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Electromagnetic Theory, etc. 
Paper Information
Registration To EMT 
Conference Code 2022-11-EMT-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Phase measurement and adjustment of reflector antenna with beam waveguide feeds 
Sub Title (in English)  
Keyword(1) Reflector antenna  
Keyword(2) Beam waveguide feeds  
Keyword(3) Transmission phase  
Keyword(4) Measurement  
1st Author's Name Shin-ichi Yamamoto  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
2nd Author's Name Hiroto Ado  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
3rd Author's Name Ryuya Seki  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
4th Author's Name Yasuhiro Nishioka  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
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Date Time 2022-11-18 11:10:00 
Presentation Time 25 minutes 
Registration for EMT 
Paper # EMT2022-64 
Volume (vol) vol.122 
Number (no) no.256 
Page pp.111-116 
Date of Issue 2022-11-10 (EMT) 

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