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Paper Abstract and Keywords
Presentation 2014-11-20 13:25
A Broadband Rx Band Noise Reduction Circuit with CMOS Switch for Multi-Band Power Amplifier
Yoshifumi Kawamura, Shintaro Shinjo, Kazuhiro Iyomasa, Masakazu Hirobe, Katsuya Kato, Yoshinori Takahashi, Shigeo Yamabe, Kenichi Horiguchi, Morishige Hieda, Koji Yamanaka (Mitsubishi Electric) MW2014-129 Link to ES Tech. Rep. Archives: MW2014-129
Abstract (in Japanese) (See Japanese page) 
(in English) A broadband Rx band noise reduction circuit for multi-band power amplifiers (PA) with multi chains is presented. The proposed Rx band noise reduction circuit consists of a Single-Pole Double-Throw (SPDT) switch and an LC resonator with resonant frequency is at the difference frequency between transmit and receive bands. By controlling the connection path of the LC resonator with the SPDT switch, the proposed Rx band noise reduction circuit achieves broadband Rx band noise suppression. In this paper, to clarify the impact of the proposed circuit, the proposed circuit is applied to a multi-band PA. As a result, the proposed Rx noise reduction circuit offers broadband out-of-band noise suppression and improved Rx noise power. In addition, the PA achieves more than 28.5 dBm of output power with power added efficiency (PAE) as high as 37% with a corresponding Rx-noise power of -136.5 dBm/Hz.
Keyword (in Japanese) (See Japanese page) 
(in English) Rx band noise / noise reduction circuit / LC resonator / power amplifier / frequency division duplex / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 318, MW2014-129, pp. 33-36, Nov. 2014.
Paper # MW2014-129 
Date of Issue 2014-11-13 (MW) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 MW2014-129 Link to ES Tech. Rep. Archives: MW2014-129

Conference Information
Committee MW  
Conference Date 2014-11-20 - 2014-11-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2014-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Broadband Rx Band Noise Reduction Circuit with CMOS Switch for Multi-Band Power Amplifier 
Sub Title (in English)  
Keyword(1) Rx band noise  
Keyword(2) noise reduction circuit  
Keyword(3) LC resonator  
Keyword(4) power amplifier  
Keyword(5) frequency division duplex  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoshifumi Kawamura  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Shintaro Shinjo  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Kazuhiro Iyomasa  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Masakazu Hirobe  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
5th Author's Name Katsuya Kato  
5th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
6th Author's Name Yoshinori Takahashi  
6th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
7th Author's Name Shigeo Yamabe  
7th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
8th Author's Name Kenichi Horiguchi  
8th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
9th Author's Name Morishige Hieda  
9th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
10th Author's Name Koji Yamanaka  
10th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2014-11-20 13:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2014-129 
Volume (vol) vol.114 
Number (no) no.318 
Page pp.33-36 
#Pages
Date of Issue 2014-11-13 (MW) 


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