A new method to find the optimal subharmonic impedance for CDMA power amplifier with Volterra series analysis

Author

Wang, Bo ; Hong, Xingnan ; Gao, Baoxin

Author_Institution

State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China

Volume

1

fYear

2001

fDate

2001

Firstpage

306

Abstract

The Volterra series method is employed in this paper to analyze the influence of the subharmonic termination. A set of formula is also deduced to calculate the optimal subharmonic impedance. With the formula, a new measurement-based method is presented to obtain the optimal subharmonic termination for the weak nonlinear condition. With this new method, the optimal subharmonic load can be easily calculated with a little amount of measurement data, while, in contrast, a great number of measurement data would be required for the conventional load pull method. The analysis result is verified with the simulation result obtained by the HB method and agrees well with the analysis

Keywords

Volterra series; code division multiple access; electric impedance; nonlinear network analysis; power amplifiers; CDMA power amplifier; MESFET model; Volterra series analysis; measurement-based method; optimal subharmonic impedance; subharmonic termination; weak nonlinear condition; Circuits; Frequency; Impedance; Laboratories; Microwave amplifiers; Multiaccess communication; Power amplifiers; Signal analysis; Termination of employment; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific

Conference_Location

Taipei

Print_ISBN

0-7803-7138-0

Type

conf

DOI

10.1109/APMC.2001.985648

Filename

985648