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Paper Abstract and Keywords
Presentation 2021-09-10 15:40
A 920MHz band rectenna with impedance transformed small loop antenna
Yuki Muramoto, Naoki Sakai, Kenji Itoh (KIT) MW2021-37
Abstract (in Japanese) (See Japanese page) 
(in English) Small loop antennas have technical features of miniaturized size and less degradation with closing ground metals or human bodies. Furthermore, extreme high impedance more than 10 kΩcan be obtained for high-sensitive rectennas in μW operation. However, they are not suitable for antennas with kΩ-class impedance, due to enlarged size. In this report, the impedance transformed small loop antenna with two series capacitances Cs at the output port is proposed for miniaturization of the kΩ-class small loop antenna. The series capacitances Cs realize functionality of impedance transforming. Small sized 10 kΩ-class small loop antenna can be connected with the rectifier that requires kΩ-class impedance. As a result, the rectenna with the impedance transformed small loop antenna achieves the halved size compared with the conventional one. The measured rectification efficiency of 34 % at the input power of -10 dBm is obtained, and this is the almost same one as the conventional case.
Keyword (in Japanese) (See Japanese page) 
(in English) Rectenna / Rectifier / Small loop antenna / SBD / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 169, MW2021-37, pp. 24-29, Sept. 2021.
Paper # MW2021-37 
Date of Issue 2021-09-02 (MW) 
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 MW2021-37

Conference Information
Committee MW AP  
Conference Date 2021-09-09 - 2021-09-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, Millimeter wave 
Paper Information
Registration To MW 
Conference Code 2021-09-MW-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A 920MHz band rectenna with impedance transformed small loop antenna 
Sub Title (in English)  
Keyword(1) Rectenna  
Keyword(2) Rectifier  
Keyword(3) Small loop antenna  
Keyword(4) SBD  
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1st Author's Name Yuki Muramoto  
1st Author's Affiliation Kanazawa Institute of Technology (KIT)
2nd Author's Name Naoki Sakai  
2nd Author's Affiliation Kanazawa Institute of Technology (KIT)
3rd Author's Name Kenji Itoh  
3rd Author's Affiliation Kanazawa Institute of Technology (KIT)
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Speaker Author-1 
Date Time 2021-09-10 15:40:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2021-37 
Volume (vol) vol.121 
Number (no) no.169 
Page pp.24-29 
#Pages 6 
Date of Issue 2021-09-02 (MW) 

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