Nonlinear gain compression in microwave amplifiers using generalized power-series analysis and transformation of input statistics

Author

Gutierrez, Hector ; Gard, Kevin ; Steer, Michael B.

Author_Institution

Dept. of Mech. & Aerosp. Eng., Florida Inst. of Technol., Melbourne, FL, USA

Volume

48

Issue

10

fYear

2000

fDate

10/1/2000 12:00:00 AM

Firstpage

1774

Lastpage

1777

Abstract

Two methods are presented for the estimation of gain compression generated by a digitally modulated carrier passed through a nonlinear RF circuit. The first one is based on developing an analytical expression for gain compression based on the transformation of input signal statistics. The second one is based on approximated expressions derived from generalized power-series analysis. The techniques are evaluated by comparing measured and predicted gain compression in a CDMA system

Keywords

UHF power amplifiers; code division multiple access; gain control; intermodulation distortion; microwave power amplifiers; series (mathematics); statistics; CDMA system; IMD; approximated expressions; digitally modulated carrier; gain compression estimation; generalized power-series analysis; input statistics transformation; microwave amplifiers; nonlinear RF circuit; nonlinear gain compression; Coupling circuits; Cutoff frequency; Directional couplers; Electromagnetic scattering; Equivalent circuits; Frequency dependence; Impedance; Microwave amplifiers; Microwave theory and techniques; Power amplifiers;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.873911

Filename

873911