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Paper Abstract and Keywords
Presentation 2010-11-26 13:50
A Study on Efficiency Improvement for L-band 10W GaN HEMT Power Amplifier with Harmonic Injection
Kenichi Fujii, Kousaku Tsujioka (WTI), Tadashi Takagi (Tohoku Univ.) MW2010-121 Link to ES Tech. Rep. Archives: MW2010-121
Abstract (in Japanese) (See Japanese page) 
(in English) An experimental study of efficiency improvement by 2nd and 3rd harmonic injection has been done for L band 10W GaN HEMT amplifier with 2nd and 3rd harmonic injection ports at both input and output ports of the amplifier. As the results of this experiment, input harmonic injection to the amplifier is more effective than the output harmonic injection to it, and 2nd harmonic injection is more effective than 3rd harmonic injection at the condition of the same harmonic injection power level. By the input 2nd harmonic injection, the maximum power added efficiency of 61.4% and the efficiency improvement of 7.3% has been achieved for the amplifier.
Keyword (in Japanese) (See Japanese page) 
(in English) High power amplifier / harmonic injection / GaN HEMT / Efficiency improvement / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 307, MW2010-121, pp. 93-98, Nov. 2010.
Paper # MW2010-121 
Date of Issue 2010-11-18 (MW) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 MW2010-121 Link to ES Tech. Rep. Archives: MW2010-121

Conference Information
Committee MW  
Conference Date 2010-11-25 - 2010-11-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Tiruru 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MW 
Conference Code 2010-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Efficiency Improvement for L-band 10W GaN HEMT Power Amplifier with Harmonic Injection 
Sub Title (in English)  
Keyword(1) High power amplifier  
Keyword(2) harmonic injection  
Keyword(3) GaN HEMT  
Keyword(4) Efficiency improvement  
1st Author's Name Kenichi Fujii  
1st Author's Affiliation Wave Technology Inc. (WTI)
2nd Author's Name Kousaku Tsujioka  
2nd Author's Affiliation Wave Technology Inc. (WTI)
3rd Author's Name Tadashi Takagi  
3rd Author's Affiliation Research Institute of Electrical Communication, Tohoku University (Tohoku Univ.)
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Date Time 2010-11-26 13:50:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-MW2010-121 
Volume (vol) IEICE-110 
Number (no) no.307 
Page pp.93-98 
#Pages IEICE-6 
Date of Issue IEICE-MW-2010-11-18 

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