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Paper Abstract and Keywords
Presentation 2008-12-12 14:25
The Design of Low Distoriton MOS Switches in Direct Sampling Mixers
Masaki Ishii, Kiyomichi Araki (Tokyo Inst. of Tech.) MW2008-156
Abstract (in Japanese) (See Japanese page) 
(in English) Discrete time receivers are an attractive solution for use in Software De-fined Radio (SDR). A discrete time receiver samples received signals at the RF rate and converts signals to baseband directly. This has various advantages such as no imaging effects, any intermediate filter, and so on. Direct Sampling Mixer (DSM) is key for a discrete time receiver which achieves sampling, filtering and decimation with charge sharing between each capacitor. Since charge sharing works as a digital filter, we can obtain desired frequency characteristics for adapting different communication systems. However, DSM has a nonlinearity problem remains to be solved. Generally, the nonlinearity in a receiver has never been a subject of discussions because the received signal is too weak to saturate an amplifier. In this paper, we present the design guidelines by analytical calculation for MOS switches in a direct sampling mixer for low distortion operation.
Keyword (in Japanese) (See Japanese page) 
(in English) DSM / Direct Sampling Mixer / Software Defined Radio / Nonlinear / MOSFET / Parasitic Capacitance / ON Resistance /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 350, MW2008-156, pp. 59-64, Dec. 2008.
Paper # MW2008-156 
Date of Issue 2008-12-05 (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)
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Conference Information
Committee MW  
Conference Date 2008-12-12 - 2008-12-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyama-Univ. Gofuku-camp. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MW 
Conference Code 2008-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The Design of Low Distoriton MOS Switches in Direct Sampling Mixers 
Sub Title (in English)  
Keyword(1) DSM  
Keyword(2) Direct Sampling Mixer  
Keyword(3) Software Defined Radio  
Keyword(4) Nonlinear  
Keyword(5) MOSFET  
Keyword(6) Parasitic Capacitance  
Keyword(7) ON Resistance  
Keyword(8)  
1st Author's Name Masaki Ishii  
1st Author's Affiliation Tokyo institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Kiyomichi Araki  
2nd Author's Affiliation Tokyo institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2008-12-12 14:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2008-156 
Volume (vol) vol.108 
Number (no) no.350 
Page pp.59-64 
#Pages 6 
Date of Issue 2008-12-05 (MW) 

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