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Paper Abstract and Keywords
Presentation 2018-11-15 10:00
2-GHz-Band GaN HEMT Class-F Power Amplifiers Using CRLH-Transmission-Line-Stub Dual-Use Circuits for Harmonic Control and DC Biasing
Tomoya Oda, Kento Saiki, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2018-92
Abstract (in Japanese) (See Japanese page) 
(in English) The next generation mobile communication systems impose challenging performance, size and cost requirements on the power amplifiers. This paper presents novel DC-biasing circuits, which are compact and yet can control the harmonics almost arbitrarily, thereby allowing to save the space for additional harmonic tuning circuit. The proposed circuit consists of a composite right-/left-handed (CRLH) transmission line (TL) stub, of which the size and harmonic-control function can be tuned by modifying the dispersion diagram of the stub line. As a proof of concept, a compact 2-GHz 6-W GaN HEMT class-F PA using the versatile CRLH-TL stubs was fabricated, demonstrating 88.1% drain efficiency and 76.1% power-added efficiency.
Keyword (in Japanese) (See Japanese page) 
(in English) amplifier / class-F / harmonic tuning / biasing circuit / CRLH / power efficiency / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 308, MW2018-92, pp. 1-6, Nov. 2018.
Paper # MW2018-92 
Date of Issue 2018-11-08 (MW) 
ISSN Print edition: ISSN 0913-5685    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 MW2018-92

Conference Information
Committee MW  
Conference Date 2018-11-15 - 2018-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukue Cultural Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2018-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) 2-GHz-Band GaN HEMT Class-F Power Amplifiers Using CRLH-Transmission-Line-Stub Dual-Use Circuits for Harmonic Control and DC Biasing 
Sub Title (in English)  
Keyword(1) amplifier  
Keyword(2) class-F  
Keyword(3) harmonic tuning  
Keyword(4) biasing circuit  
Keyword(5) CRLH  
Keyword(6) power efficiency  
Keyword(7)  
Keyword(8)  
1st Author's Name Tomoya Oda  
1st Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. of Tech.)
2nd Author's Name Kento Saiki  
2nd Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. of Tech.)
3rd Author's Name Shinichi Tanaka  
3rd Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. of Tech.)
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Speaker Author-1 
Date Time 2018-11-15 10:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2018-92 
Volume (vol) vol.118 
Number (no) no.308 
Page pp.1-6 
#Pages 6 
Date of Issue 2018-11-08 (MW) 

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