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Paper Abstract and Keywords
Presentation 2023-03-17 11:45
Study of DOA measurement method in multipath using rotating reflector antenna capable of measuring multiple polarizations
Toshiki Hozen, Kazuma Tomimoto, Ryo Yamaguchi (Softbank) AP2022-246
Abstract (in Japanese) (See Japanese page) 
(in English) It has been reported that the millimetre and terahertz wave bands used in next-generation communications have different human body scattering characteristics for V and H polarisations. Therefore, it is necessary to clarify the propagation characteristics of each polarisations in order to implement MIMO technology. Simultaneous measurement of V and H polarisation is time-consuming when the direction of arrival (DOA) is measured by rotating an aperture antenna, and a highspeed measurement system is required to perform this measurement regardless of the environment. The authors have proposed a fast measurement system for the direction of arrival of V and H polarisations using a rotating reflector antenna with OMT (orthomode transducers) attached to the primary radiator. In this paper, DOA measurements are performed using multiple sources of V and H polarisations and the effectiveness of the measurement system in multipath is confirmed. The measurement results show that the system can make measurements even when V and H polarisations arrive from different directions, and can discriminate between two polarisations even when they arrive from the same direction.
Keyword (in Japanese) (See Japanese page) 
(in English) DOA Measurement / Reflector Antenna / OMT(Orthomode transducers) / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 441, AP2022-246, pp. 72-75, March 2023.
Paper # AP2022-246 
Date of Issue 2023-03-09 (AP) 
ISSN 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 AP2022-246

Conference Information
Committee AP  
Conference Date 2023-03-16 - 2023-03-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyama Prefectural Civic Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2023-03-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of DOA measurement method in multipath using rotating reflector antenna capable of measuring multiple polarizations 
Sub Title (in English)  
Keyword(1) DOA Measurement  
Keyword(2) Reflector Antenna  
Keyword(3) OMT(Orthomode transducers)  
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1st Author's Name Toshiki Hozen  
1st Author's Affiliation Softbank Corp. (Softbank)
2nd Author's Name Kazuma Tomimoto  
2nd Author's Affiliation Softbank Corp. (Softbank)
3rd Author's Name Ryo Yamaguchi  
3rd Author's Affiliation Softbank Corp. (Softbank)
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Speaker Author-1 
Date Time 2023-03-17 11:45:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2022-246 
Volume (vol) vol.122 
Number (no) no.441 
Page pp.72-75 
#Pages 4 
Date of Issue 2023-03-09 (AP) 

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