Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2024-11-14 13:55
Improvement of Output Back-Off Efficiency by Doherty-Outphasing Mixed Operation for 4.7-GHz-Band GaN HEMT Power Amplifier with Miniature Combiner
Yudai Shiraishi, Kazuhiko Honjo, Ryo Ishikawa (UEC) MW2024-130
Abstract (in Japanese) (See Japanese page) 
(in English) An outphasing power amplifier is one of high-efficiency load-modulation amplifiers for wide-dynamic-range digitally modulated signals, and the method by combining it with Doherty power amplifiers for expanding performance has been also investigated. For the outphasing power amplifier configuration, we proposed the scheme and reported prototype evaluations of a miniature output combiner with series reactance-compensation elements. In this paper, we proposed and verified a Doherty-outphasing power amplifier with a miniature combiner for improvement the output back-off efficiency while downsizing the amplifier. The amplifier was designed based on an impedance-termination adjustment technique at 3 power levels of back-off, middle output, and near-saturation points to maximize the efficiency. The fabricated GaN HEMT Doherty-outphasing power amplifier exhibited a peak drain efficiency of 59.5% and a saturated output power of 42.3 dBm at 4.6 GHz. In addition, a drain efficiency above 50% was maintained within a output power back-off of 10.3 dB.
Keyword (in Japanese) (See Japanese page) 
(in English) outphasing power amplifier / Doherty power amplifier / load modulation / wide dynamic range / GaN HEMT / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 261, MW2024-130, pp. 40-45, Nov. 2024.
Paper # MW2024-130 
Date of Issue 2024-11-07 (MW) 
ISSN 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 MW2024-130

Conference Information
Committee MW  
Conference Date 2024-11-14 - 2024-11-15 
Place (in Japanese) (See Japanese page) 
Place (in English) JA Kume-jima Yuntaku house 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2024-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Output Back-Off Efficiency by Doherty-Outphasing Mixed Operation for 4.7-GHz-Band GaN HEMT Power Amplifier with Miniature Combiner 
Sub Title (in English)  
Keyword(1) outphasing power amplifier  
Keyword(2) Doherty power amplifier  
Keyword(3) load modulation  
Keyword(4) wide dynamic range  
Keyword(5) GaN HEMT  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yudai Shiraishi  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Kazuhiko Honjo  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Ryo Ishikawa  
3rd Author's Affiliation The University of Electro-Communications (UEC)
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2024-11-14 13:55:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2024-130 
Volume (vol) vol.124 
Number (no) no.261 
Page pp.40-45 
#Pages 6 
Date of Issue 2024-11-07 (MW) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan