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Paper Abstract and Keywords
Presentation 2025-03-05 14:05
[Short Paper] Evaluation of seawater effects on antennas for marine LPWA systems using high-altitude flying vehicles
Keita Sekigami, So Hasegawa, Kaito Terasaka, So Hideya, Takana Kaho (Shonan Inst. Tech.), Yasuo Suzuki, Shigeru Teruhi (NTT) SAT2024-61
Abstract (in Japanese) (See Japanese page) 
(in English) We are conducting research into ultra-wide area sensing platforms using low-orbit satellite MIMO technology and balloons. For atmospheric and ocean observations, we are considering a configuration to obtain data from marine buoys using low-orbit satellites and balloons via wireless communication in the 920MHz band. When designing wireless lines, it is necessary to set a margin that takes into account the effect of seawater on the antenna. Here, we report the results of an investigation into the effect of seawater on the frequency characteristics and beam patterns of dipole and monopole antennas using an electromagnetic field simulator based on the FEM method. In particular, we report on the characteristics when part or all of the antenna is submerged in seawater due to the effect of waves.
Keyword (in Japanese) (See Japanese page) 
(in English) Maritime LPWA / monopole antenna / dipole antenna / FEM method / seawater / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 408, SAT2024-61, pp. 14-16, March 2025.
Paper # SAT2024-61 
Date of Issue 2025-02-26 (SAT) 
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 SAT2024-61

Conference Information
Committee SANE SAT  
Conference Date 2025-03-05 - 2025-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Nago Civic Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Application and General Issues 
Paper Information
Registration To SAT 
Conference Code 2025-03-SANE-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of seawater effects on antennas for marine LPWA systems using high-altitude flying vehicles 
Sub Title (in English)  
Keyword(1) Maritime LPWA  
Keyword(2) monopole antenna  
Keyword(3) dipole antenna  
Keyword(4) FEM method  
Keyword(5) seawater  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Keita Sekigami  
1st Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
2nd Author's Name So Hasegawa  
2nd Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
3rd Author's Name Kaito Terasaka  
3rd Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
4th Author's Name So Hideya  
4th Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
5th Author's Name Takana Kaho  
5th Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
6th Author's Name Yasuo Suzuki  
6th Author's Affiliation NTT Corporation (NTT)
7th Author's Name Shigeru Teruhi  
7th Author's Affiliation NTT Corporation (NTT)
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Speaker Author-1 
Date Time 2025-03-05 14:05:00 
Presentation Time 15 minutes 
Registration for SAT 
Paper # SAT2024-61 
Volume (vol) vol.124 
Number (no) no.408 
Page pp.14-16 
#Pages 3 
Date of Issue 2025-02-26 (SAT) 

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