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Paper Abstract and Keywords
Presentation 2006-04-20 17:20
An operation principle and an effect of a Series Anti-Parallel Diode Linearizer
Hifumi Noto, Kazuhisa Yamauchi, Satoru Ishizaka, Yoshihiro Hamamatsu, Masatoshi Nakayama (MITSUBISHI ELE. CORP.)
Abstract (in Japanese) (See Japanese page) 
(in English) High efficient power amplifier with low distortion is required for mobile and broadcasting stations. Predistortion linearizer is one of the practical techniques to reduce the non-linear distortion. The miniature linearizer with a diode has been already reported. The conventional linearizer has the monotonous gain with increase or decrease of input power. In case of class-AB power amplifiers which have a gain expansion, nonlinear distortion is increased by using the conventional linearizer in saturated region. We proposed a Series Anti-Parallel Diode Linearizer(SAPDL). Its gain is decreased in the middle power region and is increased in the saturated region. In this paper, the operation principle of a SAPDL is made clear. We demonstrate that the distortion of the UHF-band power amplifier is reduced with this proposed linearizer.
Keyword Linearizer, Diode, Distortion, Amplifier
Keyword (in Japanese) (See Japanese page) 
(in English) Linearizer / Diode / Distortion / Amplifier / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 12, MW2006-11, pp. 57-62, April 2006.
Paper # MW2006-11 
Date of Issue 2006-04-13 (SCE, MW) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee SCE MW  
Conference Date 2006-04-20 - 2006-04-20 
Place (in Japanese) (See Japanese page) 
Place (in English) ISTEC-SRL (Shinonome) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) microwave, superconductivity, etc. 
Paper Information
Registration To MW 
Conference Code 2006-04-SCE-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An operation principle and an effect of a Series Anti-Parallel Diode Linearizer 
Sub Title (in English)  
Keyword(1) Linearizer  
Keyword(2) Diode  
Keyword(3) Distortion  
Keyword(4) Amplifier  
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Keyword(6)  
Keyword(7)  
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1st Author's Name Hifumi Noto  
1st Author's Affiliation MITSUBISHI ELECTRIC CORPORATION (MITSUBISHI ELE. CORP.)
2nd Author's Name Kazuhisa Yamauchi  
2nd Author's Affiliation MITSUBISHI ELECTRIC CORPORATION (MITSUBISHI ELE. CORP.)
3rd Author's Name Satoru Ishizaka  
3rd Author's Affiliation MITSUBISHI ELECTRIC CORPORATION (MITSUBISHI ELE. CORP.)
4th Author's Name Yoshihiro Hamamatsu  
4th Author's Affiliation MITSUBISHI ELECTRIC CORPORATION (MITSUBISHI ELE. CORP.)
5th Author's Name Masatoshi Nakayama  
5th Author's Affiliation MITSUBISHI ELECTRIC CORPORATION (MITSUBISHI ELE. CORP.)
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Speaker Author-1 
Date Time 2006-04-20 17:20:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # SCE2006-11, MW2006-11 
Volume (vol) vol.106 
Number (no) no.11(SCE), no.12(MW) 
Page pp.57-62 
#Pages 6 
Date of Issue 2006-04-13 (SCE, MW) 

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