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A design of composite negative group delay circuit with lower signal attenuation for performance improvement of power amplifier linearization techniques

Choi, Heungjae, Chaudhary, Girdhari, Moon, Taesu, Jeong, Yongchae, Lim, Jongsik and Kim, Chul Dong 2011. A design of composite negative group delay circuit with lower signal attenuation for performance improvement of power amplifier linearization techniques. Presented at: 2011 IEEE/MTT-S International Microwave Symposium, Baltimore, MD, USA, 5-10 June 2011. 2011 IEEE MTT-S International Microwave Symposium Digest (MTT). Picastaway, NJ: IEEE, pp. 1-4. 10.1109/MWSYM.2011.5972599

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Abstract

In this paper, we propose a novel composite negative group delay circuit to reduce the signal attenuation required to obtain negative group delay. It is already known that negative group delay can be obtained in a specific frequency of signal attenuation. For the same negative group delay of -6 ns, the signal attenuation of the conventional circuit is 31.25 dB, while the proposed composite circuit involves signal attenuation of only 13.9 dB. As a result, the number of gain compensating amplifiers can be reduced. This contributes to the efficiency enhancement as well as out-of-band noise reduction and stable operation when integrated into the power amplifier linearization system.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: IEEE
ISBN: 9781612847542
Last Modified: 04 Jun 2017 07:52
URI: http://orca.cf.ac.uk/id/eprint/69006

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