Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2025-06-13 09:20
Optimal loaded Q in wearable PT-symmetric wireless power transfer systems
Teppei Fukui, Akihito Noda (KUT) SRW2025-1 MWPTHz2025-1
Abstract (in Japanese) (See Japanese page) 
(in English) This study focuses on wireless power transfer (WPT) between flexible coils that can be embedded in smart clothing capable of sensing, haptic feedback, etc. For example, we can consider a WPT system consisting of a belt with a built-in battery and a transmitter, as well as a shirt with a receiver. For practical purposes, the efficiency of power transfer should be less dependent on the distance between the transmitter and receiver. To reduce the distance dependency of the efficiency, parity-time (PT) symmetric WPT (PTS-WPT) has been proposed. In PTS-WPT systems, the critical coupling coefficient, which is the boundary between the broken and unbroken phases, is an essential design parameter. This report shows that the optimal loaded quality factor (loaded Q) is determined to maximize an evaluation function designed to represent the balance between the critical coupling coefficient and the efficiency achieved in the unbroken phase. Based on this result, the component values in the WPT system can be determined to satisfy the given condition between the efficiency and the acceptable coil distance.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless power transfer (WPT) / parity-time symmetry (PT symmetry) / wearable systems / two-dimensional communication / contactless power transfer / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 72, SRW2025-1, pp. 1-6, June 2025.
Paper # SRW2025-1 
Date of Issue 2025-06-06 (SRW, MWPTHz) 
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 SRW2025-1 MWPTHz2025-1

Conference Information
Committee SRW MWPTHz  
Conference Date 2025-06-13 - 2025-06-13 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) MWPTHz, WLAN, WPAN, Ad-hoc, mmWave, etc. 
Paper Information
Registration To SRW 
Conference Code 2025-06-SRW-MWPTHz 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Optimal loaded Q in wearable PT-symmetric wireless power transfer systems 
Sub Title (in English)  
Keyword(1) Wireless power transfer (WPT)  
Keyword(2) parity-time symmetry (PT symmetry)  
Keyword(3) wearable systems  
Keyword(4) two-dimensional communication  
Keyword(5) contactless power transfer  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Teppei Fukui  
1st Author's Affiliation Kochi University Of technology (KUT)
2nd Author's Name Akihito Noda  
2nd Author's Affiliation Kochi University Of technology (KUT)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2025-06-13 09:20:00 
Presentation Time 20 minutes 
Registration for SRW 
Paper # SRW2025-1, MWPTHz2025-1 
Volume (vol) vol.125 
Number (no) no.72(SRW), no.73(MWPTHz) 
Page pp.1-6 
#Pages 6 
Date of Issue 2025-06-06 (SRW, MWPTHz) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan