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Paper Abstract and Keywords
Presentation 2023-09-01 11:00
Design and transmission characteristics of a tiny monopole water antenna in the 2.4 GHz band
Koyu Chinen (GLEX), Ichiko Kinjo (ONCT) AP2023-74
Abstract (in Japanese) (See Japanese page) 
(in English) We designed, fabricated, and evaluated a monopole water antenna (WA) filled with pure water. A 2.4 GHz patch antenna (PA) was used for measurement comparison, and the current density distribution and 3D field strength radiation distribution and reflection coefficient of the PA had a fundamental mode and a higher-order mode at 3.5 GHz, whose polarization was 90 degrees different. The 2.4 GHz monopole WA could receive only the fundamental mode of the PA. The 3.5 GHz WA could receive the higher-order mode of the PA by rotating the WA by 90 degrees. The transmission coefficient of the 2.4 GHz WA decreased with the square of the spacing, similar to the spatial propagation characteristics of electromagnetic waves. The results of this study are almost the same when planar or three-dimensional antennas replace the monopole electrodes.
Keyword (in Japanese) (See Japanese page) 
(in English) water antenna / polar molecule / S-parameter / monopole antenna / underwater wireless communication / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 173, AP2023-74, pp. 43-48, Aug. 2023.
Paper # AP2023-74 
Date of Issue 2023-08-24 (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 AP2023-74

Conference Information
Committee AP  
Conference Date 2023-08-31 - 2023-09-01 
Place (in Japanese) (See Japanese page) 
Place (in English) KOZO KEIKAKU ENGINEERING Inc. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2023-08-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design and transmission characteristics of a tiny monopole water antenna in the 2.4 GHz band 
Sub Title (in English)  
Keyword(1) water antenna  
Keyword(2) polar molecule  
Keyword(3) S-parameter  
Keyword(4) monopole antenna  
Keyword(5) underwater wireless communication  
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Keyword(7)  
Keyword(8)  
1st Author's Name Koyu Chinen  
1st Author's Affiliation GLEX (GLEX)
2nd Author's Name Ichiko Kinjo  
2nd Author's Affiliation National Institute of Technology, Okinawa College (ONCT)
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Speaker Author-1 
Date Time 2023-09-01 11:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2023-74 
Volume (vol) vol.123 
Number (no) no.173 
Page pp.43-48 
#Pages 6 
Date of Issue 2023-08-24 (AP) 

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