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Paper Abstract and Keywords
Presentation 2023-10-20 09:40
Evaluation of DPD Compensation and Modulation Bandwidth Dependence of GaN Doherty Amplifier Using 5G NR TDD Signals
Ayano Yano, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (Mitsubishi Electric) EMCJ2023-58 MW2023-112 EST2023-85
Abstract (in Japanese) (See Japanese page) 
(in English) We are researching broadband GaN amplifiers for base stations covering 4G/5G frequencies. We built a measurement system using the VST (Vector Transceiver) of the PXI system, 5G NR with 100MHz and 200MHz width for GaN Doherty amplifier TM3.1a TDD signal input, digital predistortion (DPD) compensation characteristics were investigated. As a nonlinear model of DPD, we consider the memory effect and generalized memory polynomial (GMP) model was used. We measured and evaluated the model parameter dependence of Adjacent Channel Power Ratio (ACPR) and Error Vector Magnitude (EVM). We also report the results of measuring the EVM variation for each symbol using a real-time spectrum analyzer with a time resolution of several μsec
Keyword (in Japanese) (See Japanese page) 
(in English) High power amplifier / wideband / GaN / digital predistortion compensation / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 216, MW2023-112, pp. 119-124, Oct. 2023.
Paper # MW2023-112 
Date of Issue 2023-10-12 (EMCJ, MW, EST) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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 EMCJ2023-58 MW2023-112 EST2023-85

Conference Information
Committee MW EMCJ EST IEE-EMC  
Conference Date 2023-10-19 - 2023-10-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamagata University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, EM simulation, EMC, etc. 
Paper Information
Registration To MW 
Conference Code 2023-10-MW-EMCJ-EST-EMC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of DPD Compensation and Modulation Bandwidth Dependence of GaN Doherty Amplifier Using 5G NR TDD Signals 
Sub Title (in English)  
Keyword(1) High power amplifier  
Keyword(2) wideband  
Keyword(3) GaN  
Keyword(4) digital predistortion compensation  
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1st Author's Name Ayano Yano  
1st Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
2nd Author's Name Takana Kaho  
2nd Author's Affiliation Shonan Institute of Technology (Shonan Inst. Tech.)
3rd Author's Name Shuichi Sakata  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Yuji Komatsuzaki  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
5th Author's Name Koji Yamanaka  
5th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2023-10-20 09:40:00 
Presentation Time 20 minutes 
Registration for MW 
Paper # EMCJ2023-58, MW2023-112, EST2023-85 
Volume (vol) vol.123 
Number (no) no.215(EMCJ), no.216(MW), no.217(EST) 
Page pp.119-124 
#Pages 6 
Date of Issue 2023-10-12 (EMCJ, MW, EST) 

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