Paper Abstract and Keywords |
Presentation |
2018-11-15 15:45
Advanced Mode Unity Using Loop Array Proximate to Reflector for OAM Communication Ryohei Yamagishi, Hiroto Otsuka, Akira Saitou, Hiroshi Suzuki, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2018-102 Link to ES Tech. Rep. Archives: MW2018-102 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Advanced 4-channel multiplexing performance for short- and long-range orbital-angular-momentum (OAM) is demonstrated using circular loop arrays proximate to a planar reflector, where the distance between the array and the reflector is 2 mm to improve the mode unity. To impedance-match measured low input impedances, baluns tailored to each antenna were designed. With these fabricated modules, consisting of a 4-element loop antenna array, baluns and a planar reflector, satisfactory return losses are obtained. In addition, remarkably suppressed transmissions among the transmitting antennas are obtained in favor of the advanced mode unity; the transmission is less than -33.2 dB at 5.5 GHz. With these modules, performance for short-range communication is estimated. The transmission between antennas of the same radius, corresponding to the signal transmission, is always the maximum for each transmitting antenna. The measured transmission isolation, corresponding to the ratio of the signal to the interference, is as large as 21.9 dB. We confirmed that different 64 QAM signals are input to two antennas respectively and that the signals can be separated without signal processing. Performance for long-range communication is also estimated by using paraboloids and measuring equipment for accurate alignments. The measured transmission between antennas of the same radius is also the maximum, and an excellent measured transmission isolation of 23.4 dB is obtained at 5.5 GHz. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Loop antenna / Orbital angular momentum / Multiplexing / reflector plane / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 308, MW2018-102, pp. 53-57, Nov. 2018. |
Paper # |
MW2018-102 |
Date of Issue |
2018-11-08 (MW) |
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 |
MW2018-102 Link to ES Tech. Rep. Archives: MW2018-102 |
Conference Information |
Committee |
MW |
Conference Date |
2018-11-15 - 2018-11-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Fukue Cultural Hall |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave Technologies |
Paper Information |
Registration To |
MW |
Conference Code |
2018-11-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Advanced Mode Unity Using Loop Array Proximate to Reflector for OAM Communication |
Sub Title (in English) |
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Keyword(1) |
Loop antenna |
Keyword(2) |
Orbital angular momentum |
Keyword(3) |
Multiplexing |
Keyword(4) |
reflector plane |
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1st Author's Name |
Ryohei Yamagishi |
1st Author's Affiliation |
The University of Electro-Communications (UEC) |
2nd Author's Name |
Hiroto Otsuka |
2nd Author's Affiliation |
The University of Electro-Communications (UEC) |
3rd Author's Name |
Akira Saitou |
3rd Author's Affiliation |
The University of Electro-Communications (UEC) |
4th Author's Name |
Hiroshi Suzuki |
4th Author's Affiliation |
The University of Electro-Communications (UEC) |
5th Author's Name |
Ryo Ishikawa |
5th Author's Affiliation |
The University of Electro-Communications (UEC) |
6th Author's Name |
Kazuhiko Honjo |
6th Author's Affiliation |
The University of Electro-Communications (UEC) |
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Speaker |
Author-1 |
Date Time |
2018-11-15 15:45:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2018-102 |
Volume (vol) |
vol.118 |
Number (no) |
no.308 |
Page |
pp.53-57 |
#Pages |
5 |
Date of Issue |
2018-11-08 (MW) |
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