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Paper Abstract and Keywords
Presentation 2022-05-20 13:25
Near-field Metamaterial-based WPT system with FSK Demodulation in CMOS Technology
Mohd Khairi Bin Zulkalnain, Shimaa Alshhawy, Kan Terazawa, Adel Barakat, Ramesh Pokharel (九大) MW2022-21
Abstract (in Japanese) (See Japanese page) 
(in English) Near-field Metamaterial-based WPT system can enable over coupling mode by improving the transmitter (TX)/receiver (RX) coupling. The use of a fixed frequency oscillator to supply this system results in poor efficiency when TX/RX distance changes. Instead, we propose the use of a free-running oscillator to track the frequency of peak efficiency when over coupling occurs. Moreover, we employ a frequency hopping technique to enable back-data communication. The proposed WPT system operates at 50MHz and consists of a free-running voltage-controlled oscillator (VCO) operating at 0.6 V voltage supply and an off-chip metamaterial-based LC tank at the transmitter (TX) side. At the receiver (RX) side, the WPT system consists of an off-chip metamaterial-based LC tank, a rectifier, and a transistor operated as a switch for back-data communication, as per our frequency hopping technique. A digital FSK demodulator was designed to demodulate the signal using 0.18µm CMOS technology. Simulation results show that the transmitted data was successfully recovered at the TX side, and thus confirmed the validity of the proposed concept.
Keyword (in Japanese) (See Japanese page) 
(in English) WPT System / Meta-material / FSK Demodulation / Inductive Link / Bio-medical tissue / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 35, MW2022-21, pp. 32-35, May 2022.
Paper # MW2022-21 
Date of Issue 2022-05-12 (MW) 
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 MW2022-21

Conference Information
Committee MW  
Conference Date 2022-05-19 - 2022-05-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2022-05-MW 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Near-field Metamaterial-based WPT system with FSK Demodulation in CMOS Technology 
Sub Title (in English)  
Keyword(1) WPT System  
Keyword(2) Meta-material  
Keyword(3) FSK Demodulation  
Keyword(4) Inductive Link  
Keyword(5) Bio-medical tissue  
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Keyword(7)  
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1st Author's Name Mohd Khairi Bin Zulkalnain  
1st Author's Affiliation Kyushu University (九大)
2nd Author's Name Shimaa Alshhawy  
2nd Author's Affiliation Kyushu University (九大)
3rd Author's Name Kan Terazawa  
3rd Author's Affiliation Kyushu University (九大)
4th Author's Name Adel Barakat  
4th Author's Affiliation Kyushu University (九大)
5th Author's Name Ramesh Pokharel  
5th Author's Affiliation Kyushu University (九大)
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Speaker Author-1 
Date Time 2022-05-20 13:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2022-21 
Volume (vol) vol.122 
Number (no) no.35 
Page pp.32-35 
#Pages
Date of Issue 2022-05-12 (MW) 


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