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 2025-07-24 13:40
Study on Resonant Wireless Power Transmission using Ultra-small Two-wire Coil Antenna -- Application to In-motion Charging for Electric Vehicles --
Koichi Tsunekawa, Tomonori Nadaya (Chubu Univ.) AP2025-48
Abstract (in Japanese) (See Japanese page) 
(in English) This study proposes a resonant wireless power transmission (WPT) system using an ultra-small two-wire spiral coil antenna, whose physical size is approximately 1/3000 of the resonant wavelength. The proposed antenna operates at a high-frequency resonance and enables highly efficient wireless power delivery compared to conventional electromagnetic induction methods. First, a one-to-one transmission experiment using a 3 cm diameter coil demonstrated a high power transfer efficiency of −0.7 dB (approximately 85%). Furthermore, by connecting multiple units in series on the road surface, a dynamic WPT (DWPT) system was constructed to allow electric vehicles (EVs) to receive power while driving. Using a 1/20-scale EV model, experimental validation was conducted with a series of resonant coils operating at approximately 80 kHz. The EV was successfully driven without a battery, powered solely by the transmitted energy. These results indicate that the proposed resonant method is a promising solution for DWPT applications.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless charging / Power supply while moving / Charging roads / EV charging / DWPT / esonant Wireless Power Transfer / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 125, AP2025-48, pp. 83-86, July 2025.
Paper # AP2025-48 
Date of Issue 2025-07-16 (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 AP2025-48

Conference Information
Committee AP SANE SAT  
Conference Date 2025-07-23 - 2025-07-25 
Place (in Japanese) (See Japanese page) 
Place (in English) hakodate arena 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Remote sensing, Subsurface Electromagnetic Measurements, Sattelite Communication, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2025-07-AP-SANE-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Resonant Wireless Power Transmission using Ultra-small Two-wire Coil Antenna 
Sub Title (in English) Application to In-motion Charging for Electric Vehicles 
Keyword(1) Wireless charging  
Keyword(2) Power supply while moving  
Keyword(3) Charging roads  
Keyword(4) EV charging  
Keyword(5) DWPT  
Keyword(6) esonant Wireless Power Transfer  
Keyword(7)  
Keyword(8)  
1st Author's Name Koichi Tsunekawa  
1st Author's Affiliation Chubu University (Chubu Univ.)
2nd Author's Name Tomonori Nadaya  
2nd Author's Affiliation Chubu University (Chubu Univ.)
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 2025-07-24 13:40:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2025-48 
Volume (vol) vol.125 
Number (no) no.125 
Page pp.83-86 
#Pages 4 
Date of Issue 2025-07-16 (AP) 

[Return to Top Page]

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