Doherty power amplifier behavioral models based on pruned Volterra series

Author

Liu, Wei ; Zhao, Yongjiu ; Liu, Bing ; Yuan, Chunhua ; Xu, Shuchen

Author_Institution

Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2011

fDate

27-29 June 2011

Firstpage

357

Lastpage

359

Abstract

In this paper, an efficient and effective pruned Volterra model is used to describe Doherty power amplifier. Rather than adopting the "black-box" approach, this model is derived from a physically scheme referring to the Doherty power amplifier. To model a Doherty power amplifier with nonlinearities and memory effects, the amplifier is analyzed by two parts in consideration of the influence between two amplifiers, while one is used to model the Class A or AB amplifier and the other to model Class C amplifier. With the Doherty amplifier tested, the proposed behavioral model is validated, and the corresponding experimental results achieve a good agreement with the desire output data.

Keywords

Volterra series; circuit testing; power amplifiers; Class A amplifier; Class AB amplifier; Class C amplifier; Doherty amplifier testing; Doherty power amplifier; memory effects; nonlinearities; pruned Volterra series; Analytical models; Computational modeling; Filtering theory; Integrated circuit modeling; Maximum likelihood detection; Nonlinear filters; Power amplifiers; Behaviol model; Dohety PA; OFDM; Pruned Volterra series;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Service System (CSSS), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9762-1

Type

conf

DOI

10.1109/CSSS.2011.5972172

Filename

5972172