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Paper Abstract and Keywords
Presentation 2019-03-07 09:50
Vector Potential Analysis on OAM Waves Generated by Circular-Array and Loop Antennas
Hiroshi Suzuki, Akira Saitou, Kazuhiko Honjo, Ryo Ishikawa (The Univ. of Electro-Commun.) RCS2018-313
Abstract (in Japanese) (See Japanese page) 
(in English) Digital radio signal transmission systems utilizing the mode orthogonality generated by the orbital angular momentum (OAM) of electromagnetic waves are currently being intensively investigated. Two types of antennas are experimentally examined for the OAM wave generation: loop antennas, and uniform circular array antennas. The characteristics of the OAM waves from these antennas can be analyzed by using vector potentials in the spherical coordinate systems. The vector potential of the circular array antennas is derived in this report, which analytically clarifies the differences from the vector potential of a loop antenna that is already known. The derivation applies spatial sampling of the vector potential of the loop, which includes anti-aliasing in the wavenumber region. Several typical polarization types: scalar wave and vector wave of OAM, are also considered by introducing current density vectors explicitly represent the orientations.
Keyword (in Japanese) (See Japanese page) 
(in English) OAM / loop antenna / uniform circular array / spatial sampling / polarization / theory / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 474, RCS2018-313, pp. 163-168, March 2019.
Paper # RCS2018-313 
Date of Issue 2019-02-27 (RCS) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee RCS SR SRW  
Conference Date 2019-03-06 - 2019-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2019-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Vector Potential Analysis on OAM Waves Generated by Circular-Array and Loop Antennas 
Sub Title (in English)  
Keyword(1) OAM  
Keyword(2) loop antenna  
Keyword(3) uniform circular array  
Keyword(4) spatial sampling  
Keyword(5) polarization  
Keyword(6) theory  
1st Author's Name Hiroshi Suzuki  
1st Author's Affiliation Adv. Wireless & Commun. Res. Center (AWCC),~ The University of Electro-Communications (The Univ. of Electro-Commun.)
2nd Author's Name Akira Saitou  
2nd Author's Affiliation The University of Electro-Communications (The Univ. of Electro-Commun.)
3rd Author's Name Kazuhiko Honjo  
3rd Author's Affiliation The University of Electro-Communications (The Univ. of Electro-Commun.)
4th Author's Name Ryo Ishikawa  
4th Author's Affiliation The University of Electro-Communications (The Univ. of Electro-Commun.)
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Speaker Author-1 
Date Time 2019-03-07 09:50:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2018-313 
Volume (vol) vol.118 
Number (no) no.474 
Page pp.163-168 
Date of Issue 2019-02-27 (RCS) 

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