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Paper Abstract and Keywords
Presentation 2016-10-21 13:00
An Image Rejection Type Ku-Band Direct RF Undersampling CMOS Receiver
Keita Norishima, Tomokazu Koizumi, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) EMCJ2016-79 MW2016-111 EST2016-75
Abstract (in Japanese) (See Japanese page) 
(in English) Direct RF under sampling reception has been developed to reduce the size and the power consumption of the terrestrial wireless terminals. We have developed a series/shunt sampling switch type sample and hold (S/H) IC for Ku-band(12.2-12.75GHz) Very Small Aperture Terminal (VSAT) under sampling receiver. In this paper, we propose an image rejection type direct RF undersampling receiver. By using a direct RF I/Q Sample and Hold (S/H) circuits, and 90 degree power combiners in the digital domain, Upper Side Band (USB) and Lower Side Band (LSB) signals can be separated into two different (USB and LSB) output ports. Therefore the image rejection functionality can be achieved with half of the clock frequency of the conventional RF undersampling receivers. The proposed RFIC is designed for Ku-band (12.25 - 12.80 GHz, system bandwidth of 550MHz) very small aperture terminal (VSAT) application and is fabricated in 90 nm CMOS process. The fabricated RFIC performs a Signal-to-Noise Ratio (SNR) of higher than 27.4 dB and an Image Rejection Ratio (IRR) of higher than 19.5 dB with 610 MHz sampling clock.
Keyword (in Japanese) (See Japanese page) 
(in English) Digital RF / RFIC / CMOS / Microwave circuit / Sampling mixer / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 254, MW2016-111, pp. 113-118, Oct. 2016.
Paper # MW2016-111 
Date of Issue 2016-10-13 (EMCJ, MW, EST) 
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 EMCJ2016-79 MW2016-111 EST2016-75

Conference Information
Committee EMCJ IEE-EMC MW EST  
Conference Date 2016-10-20 - 2016-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, Electromagnetic simulation, EMC, etc. 
Paper Information
Registration To MW 
Conference Code 2016-10-EMCJ-EMC-MW-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Image Rejection Type Ku-Band Direct RF Undersampling CMOS Receiver 
Sub Title (in English)  
Keyword(1) Digital RF  
Keyword(2) RFIC  
Keyword(3) CMOS  
Keyword(4) Microwave circuit  
Keyword(5) Sampling mixer  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Keita Norishima  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Tomokazu Koizumi  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Mizuki Motoyoshi  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Suguru Kameda  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Noriharu Suematsu  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2016-10-21 13:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # EMCJ2016-79, MW2016-111, EST2016-75 
Volume (vol) vol.116 
Number (no) no.253(EMCJ), no.254(MW), no.255(EST) 
Page pp.113-118 
#Pages 6 
Date of Issue 2016-10-13 (EMCJ, MW, EST) 

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