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Paper Abstract and Keywords
Presentation 2018-11-21 11:20
A Study on Beam Pattern in Horizontal Plane in HAPS System
Shoichi Sudo, Kenji Hoshino, Yoshichika Ohta (HAPS Mobile) AP2018-119
Abstract (in Japanese) (See Japanese page) 
(in English) A High-Altitude Platform Station (HAPS) has been expected as a new mobile communication platform that realizes ultra-wide coverage area, disaster-resistant networks, and offers radio communication networks which is aimed at three dimensional area including the upper sky where drones fly. Since a HAPS covers ultra-wide coverage area and large traffic, it is necessary that it must configure multi-cell. And it flies around the sky at a constant radius to maintain its service area, so we have to take its motion for granted. Therefore, it is important to study a low-side lobe multi-beam antenna that performs beam control corresponding to the motion of a HAPS and reduces interference between multiple cells. In this paper, we suggest a basic study of horizontal beam pattern characteristics in a HAPS assuming a circular array antenna as a service link antenna for a HAPS, which is excellent in rotational symmetry in the horizontal plane and easy to perform beam forming. Concretely, we clarify the relationship between the antenna gain, the beam width and the side lobe level, and consider the antenna parameters that can realize the low side lobe while maintaining the desired beam width and antenna gain.
Keyword (in Japanese) (See Japanese page) 
(in English) HAPS / Circular array antenna / Sidelobe reduction / pseudo‐inverse / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 310, AP2018-119, pp. 101-106, Nov. 2018.
Paper # AP2018-119 
Date of Issue 2018-11-13 (AP) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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 AP2018-119

Conference Information
Committee RCS AP  
Conference Date 2018-11-20 - 2018-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industry Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. 
Paper Information
Registration To AP 
Conference Code 2018-11-RCS-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Beam Pattern in Horizontal Plane in HAPS System 
Sub Title (in English)  
Keyword(1) HAPS  
Keyword(2) Circular array antenna  
Keyword(3) Sidelobe reduction  
Keyword(4) pseudo‐inverse  
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1st Author's Name Shoichi Sudo  
1st Author's Affiliation HAPS Mobile Inc. (HAPS Mobile)
2nd Author's Name Kenji Hoshino  
2nd Author's Affiliation HAPS Mobile Inc. (HAPS Mobile)
3rd Author's Name Yoshichika Ohta  
3rd Author's Affiliation HAPS Mobile Inc. (HAPS Mobile)
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Speaker Author-1 
Date Time 2018-11-21 11:20:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2018-119 
Volume (vol) vol.118 
Number (no) no.310 
Page pp.101-106 
#Pages
Date of Issue 2018-11-13 (AP) 


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