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Paper Abstract and Keywords
Presentation 2012-01-11 14:55
Distortion Compensation of Class-E Power Amplifier Modulating Envelope Pulse Width for Quadrature Amplitude Modulation Signal
Shota Fujioka, Yohtaro Umeda (Tokyo Univ. of Sience), Osamu Takyu (Shinshu Univ.) ED2011-126 MW2011-149
Abstract (in Japanese) (See Japanese page) 
(in English) Transmitter in wireless communication is required to be efficient, linearity, low distortion. Envelope Pulse Width Modulation (EPWM) has high efficiency and linearity because of translating Pulse Width Modulation signal. It’s suitable for Class E Power Amplifier because of removing harmonic and getting high efficiency for switching action of transistor. But it’s the assignment to generate distortion for transient response of transistor bias and passive because Class-E Power Amplifier is inputted burst action signal. Using Class-E power amplifier of 0.18-μm CMOS process it’s assess the distortion being inputted EPWM signal in 16QAM by Error Vector Magnitude. In addition, it reports to improve the feature of distortion compensating the signals of baseband.
Keyword (in Japanese) (See Japanese page) 
(in English) Class E Power Amplifier / EPWM / EVM / Distortion Compensation / CMOS / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 374, MW2011-149, pp. 41-46, Jan. 2012.
Paper # MW2011-149 
Date of Issue 2012-01-04 (ED, 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 ED2011-126 MW2011-149

Conference Information
Committee ED MW  
Conference Date 2012-01-11 - 2012-01-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MW 
Conference Code 2012-01-ED-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Distortion Compensation of Class-E Power Amplifier Modulating Envelope Pulse Width for Quadrature Amplitude Modulation Signal 
Sub Title (in English)  
Keyword(1) Class E Power Amplifier  
Keyword(2) EPWM  
Keyword(3) EVM  
Keyword(4) Distortion Compensation  
Keyword(5) CMOS  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Shota Fujioka  
1st Author's Affiliation Tokyo University of Sience (Tokyo Univ. of Sience)
2nd Author's Name Yohtaro Umeda  
2nd Author's Affiliation Tokyo University of Sience (Tokyo Univ. of Sience)
3rd Author's Name Osamu Takyu  
3rd Author's Affiliation Shinshu University (Shinshu Univ.)
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Speaker Author-1 
Date Time 2012-01-11 14:55:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # ED2011-126, MW2011-149 
Volume (vol) vol.111 
Number (no) no.373(ED), no.374(MW) 
Page pp.41-46 
#Pages 6 
Date of Issue 2012-01-04 (ED, MW) 

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