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 2023-10-06 14:30
A Study on Amplitude-Phase Distortion in Amplifiers
Satoshi Tanaka, Takeshi Yoshida, Minoru Fujishima (Hiroshima Univ.) CAS2023-41 NLP2023-40
Abstract (in Japanese) (See Japanese page) 
(in English) The output signal of a radio frequency (RF) amplifier used in a wireless system, for example, varies in amplitude and phase depending on the amplitude of the input and output signals due to the distortion characteristics of the circuit. It is important to understand how the I (in phase) and Q (quadrature phase) signals of the quadrature modulation are distorted by the nonlinear characteristics of RF amplifiers. In this report, the effects of amplitude-phase distortion of RF amplifiers on I and Q signals are first clarified. Next, the Saleh model, which is a typical behavioral model for expressing the distortion characteristics of RF amplifiers, is discussed. The Saleh model cannot reproduce the phenomenon that the polarity of phase distortion changes depending on the input signal level, which is often observed in actual RF amplifiers. To solve this problem, a term including the tanh function is added to express the characteristics including phase polarity switching. Finally, it is clarified how the AM-PM distortion characteristics change with and without the phase polarity switch.
Keyword (in Japanese) (See Japanese page) 
(in English) High frequency amplifier / Non-linear / Phase / Behavioral model / Orthogonal modulation / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 202, CAS2023-41, pp. 47-52, Oct. 2023.
Paper # CAS2023-41 
Date of Issue 2023-09-29 (CAS, NLP) 
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 CAS2023-41 NLP2023-40

Conference Information
Committee NLP CAS  
Conference Date 2023-10-06 - 2023-10-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Work plaza Gifu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) CAS, NLP, etc. 
Paper Information
Registration To CAS 
Conference Code 2023-10-NLP-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Amplitude-Phase Distortion in Amplifiers 
Sub Title (in English)  
Keyword(1) High frequency amplifier  
Keyword(2) Non-linear  
Keyword(3) Phase  
Keyword(4) Behavioral model  
Keyword(5) Orthogonal modulation  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Satoshi Tanaka  
1st Author's Affiliation Hiroshima University (Hiroshima Univ.)
2nd Author's Name Takeshi Yoshida  
2nd Author's Affiliation Hiroshima University (Hiroshima Univ.)
3rd Author's Name Minoru Fujishima  
3rd Author's Affiliation Hiroshima University (Hiroshima Univ.)
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 2023-10-06 14:30:00 
Presentation Time 20 minutes 
Registration for CAS 
Paper # CAS2023-41, NLP2023-40 
Volume (vol) vol.123 
Number (no) no.202(CAS), no.203(NLP) 
Page pp.47-52 
#Pages 6 
Date of Issue 2023-09-29 (CAS, NLP) 

[Return to Top Page]

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