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Paper Abstract and Keywords
Presentation 2019-11-15 09:30
Suppression of interference wave by resistor installation for OAM Communication using Loop Arrays Antenna
Hisanosuke Miyake, Akira Saitou, Hiroshi Suzuki, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2019-111
Abstract (in Japanese) (See Japanese page) 
(in English) As a novel multiplexing method for wireless communications, OAM (Orbital Angular Momentum) is attracting attention due to its orthogonality among OAM waves with different quantum numbers at a single frequency. We have been developing a loop antenna array to generate the OAM waves. In the actual implementation of the antenna, there was a problem that scattering waves from the antenna feed lines were received as interference waves. To reduce the interference, resistors were inserted where the amplitude of the current standing wave on the conductor of the loop antenna was minimized. In 3-cm-distance eight-value multiplexing transmitting characteristics at 5.28GHz for the loop antenna array with resistors, a transmission isolation, which is maximum ratio of transmission and interference waves, became 2.6dB in simulation. In addition, when resistors were inserted at only two current minimum points nearest a feed point for each loop, the transmission isolation became 6.8dB in simulation and 9.7dB in measurement. Mesured transmission isolation was improved by 6.2dB in comparison with that of the loop antenna array without resistor.
Keyword (in Japanese) (See Japanese page) 
(in English) Loop Antenna / Orbital Angular Momentum / Multiplexing / Interference Wave Suppression / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 292, MW2019-111, pp. 65-70, Nov. 2019.
Paper # MW2019-111 
Date of Issue 2019-11-07 (MW) 
ISSN Print edition: ISSN 0913-5685  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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MW2019-111

Conference Information
Committee MW  
Conference Date 2019-11-14 - 2019-11-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Minami Daido Villa. Tamokuteki Koryu Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2019-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Suppression of interference wave by resistor installation for OAM Communication using Loop Arrays Antenna 
Sub Title (in English)  
Keyword(1) Loop Antenna  
Keyword(2) Orbital Angular Momentum  
Keyword(3) Multiplexing  
Keyword(4) Interference Wave Suppression  
1st Author's Name Hisanosuke Miyake  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Akira Saitou  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Hiroshi Suzuki  
3rd Author's Affiliation The University of Electro-Communications (UEC)
4th Author's Name Ryo Ishikawa  
4th Author's Affiliation The University of Electro-Communications (UEC)
5th Author's Name Kazuhiko Honjo  
5th Author's Affiliation The University of Electro-Communications (UEC)
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Date Time 2019-11-15 09:30:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-MW2019-111 
Volume (vol) IEICE-119 
Number (no) no.292 
Page pp.65-70 
#Pages IEICE-6 
Date of Issue IEICE-MW-2019-11-07 

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