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Paper Abstract and Keywords
Presentation 2011-10-20 10:15
A Cascode Power Amplifier MMIC Consisting of Independently Biased InGaP/GaAs HBTs
Yuki Takagi, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2011-87
Abstract (in Japanese) (See Japanese page) 
(in English) In cascode circuit configuration, the method to expand the design range of operation modes is proposed. This method can set independently bias voltages of two transistors by adding a DC bias node between two transistors. Using source-pull and load-pull measurement, the optimal source and load impedances and microwave performances for the InGaP/GaAs HBT cascode circuit were obtained. Based on these impedances, a 1.9-GHz-band cascode power amplifier MMIC was designed, fabricated and estimated. The dependence of microwave performances on both transistor bias conditions was estimated in detail. Also, performances of this cascode configuration were compared to the conventional cascode one.
Keyword (in Japanese) (See Japanese page) 
(in English) MMICs / microwave circuit / power amplifiers / independently biased cascode circuit / cascode amplifier / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 250, MW2011-87, pp. 11-15, Oct. 2011.
Paper # MW2011-87 
Date of Issue 2011-10-13 (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 MW2011-87

Conference Information
Committee MW  
Conference Date 2011-10-20 - 2011-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Electro-Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2011-10-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Cascode Power Amplifier MMIC Consisting of Independently Biased InGaP/GaAs HBTs 
Sub Title (in English)  
Keyword(1) MMICs  
Keyword(2) microwave circuit  
Keyword(3) power amplifiers  
Keyword(4) independently biased cascode circuit  
Keyword(5) cascode amplifier  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuki Takagi  
1st Author's Affiliation University of Electro-Communications (UEC)
2nd Author's Name Yoichiro Takayama  
2nd Author's Affiliation University of Electro-Communications (UEC)
3rd Author's Name Ryo Ishikawa  
3rd Author's Affiliation University of Electro-Communications (UEC)
4th Author's Name Kazuhiko Honjo  
4th Author's Affiliation University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2011-10-20 10:15:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2011-87 
Volume (vol) vol.111 
Number (no) no.250 
Page pp.11-15 
#Pages 5 
Date of Issue 2011-10-13 (MW) 

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