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Paper Abstract and Keywords
Presentation 2022-12-16 11:25
[Invited Talk] Increasing Efficiency of Power Amplifiers for Microwave Power Transfer by PA- Antenna Co-design
Shinji Hara, Noriyuki Tanba (Nagoya Univ.), Hiroshi Hirayama (Nitech) MW2022-144
Abstract (in Japanese) (See Japanese page) 
(in English) The efficiency is important in power amplifiers. For wireless communication applications which transfer signals, there are other important parameters such as linearity and bandwidth other than the efficiency, and they are usually in a trade-off relationship. On the other hand, the efficiency is the most important and need to be extremely high for energy transfer applications. In this presentation, the authors will introduce the technologies for improving the efficiency of power amplifiers for microwave power transfer. Power amplifiers generally use a matching circuit for the fundamental wave and a harmonic reflection circuit for high efficiency between the transistor and the next circuit block, but they have not a little loss. The authors have proposed the design methodology that minimizes these losses by directly connecting, without matching circuits, the power amplifier and the antenna which has built-in harmonic reflection function, thereby realizing highly efficient power amplifiers. This paper introduces this design technique and some other PA-antenna co-design methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Power Amplifier / Antenna / Integration / Harmonics Control / High Efficiency / Matching Circuit / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 313, MW2022-144, pp. 64-64, Dec. 2022.
Paper # MW2022-144 
Date of Issue 2022-12-08 (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 MW2022-144

Conference Information
Committee MW  
Conference Date 2022-12-15 - 2022-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Jingu-Kaikan(Ise) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2022-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Increasing Efficiency of Power Amplifiers for Microwave Power Transfer by PA- Antenna Co-design 
Sub Title (in English)  
Keyword(1) Power Amplifier  
Keyword(2) Antenna  
Keyword(3) Integration  
Keyword(4) Harmonics Control  
Keyword(5) High Efficiency  
Keyword(6) Matching Circuit  
Keyword(7)  
Keyword(8)  
1st Author's Name Shinji Hara  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Noriyuki Tanba  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Hiroshi Hirayama  
3rd Author's Affiliation Nagoya Institute of Technology (Nitech)
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Speaker Author-1 
Date Time 2022-12-16 11:25:00 
Presentation Time 45 minutes 
Registration for MW 
Paper # MW2022-144 
Volume (vol) vol.122 
Number (no) no.313 
Page p.64 
#Pages 1 
Date of Issue 2022-12-08 (MW) 

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