Memory Effect Modeling and Compensation in Doherty Amplifier with Pre-distorter 


Vol. 33,  No. 6, pp. 195-200, Jun.  2008


PDF
  Abstract

Doherty amplifier has more efficiency and distortion than general amplifier. These distortion classified amplitude distortion and phase distortion, memory effect distortion. This paper reports on an attempt to investigate, model and quantity the contribution of the electrical nonlinearity effects and the thermal memory effects to a doherty amplifier's distortion generation and suggests thermal memory effect compensator for pre-distorter. Also this paper reports on the development of an accurate dynamic expression of the instantaneous junction temperature as a function of the instantaneous dissipated power. The parameters of suggested model suppress thermal memory effects doherty amplifier with pre-distorter. Pre-distorter with electrothermal memory effect compensator for doherty amplifier enhanced ACLR performance about 22 ㏈ than general doherty amplifier. Experiment results were mesured by 50W LDMOS Doherty amplifier and pre-distorter with electrothermal memory effect compensator was simulated by ADS.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

H. Jang, "Memory Effect Modeling and Compensation in Doherty Amplifier with Pre-distorter," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 6, pp. 195-200, 2008. DOI: .

[ACM Style]

Hong-Ju Jang. 2008. Memory Effect Modeling and Compensation in Doherty Amplifier with Pre-distorter. The Journal of Korean Institute of Communications and Information Sciences, 33, 6, (2008), 195-200. DOI: .

[KICS Style]

Hong-Ju Jang, "Memory Effect Modeling and Compensation in Doherty Amplifier with Pre-distorter," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 6, pp. 195-200, 6. 2008.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880