Novel two-tone intermodulation phase measurement for evaluating amplifier memory effects

Author

Dunsmore, Joel ; Goldberg, David

Author_Institution

Agilent Technol., Santa Rosa, CA, USA

Volume

1

fYear

2003

fDate

7-9 Oct. 2003

Firstpage

235

Abstract

The amplitude and phase response of the two-tone intermodulation product, as the tone spacing is swept in frequency, may be used to predict memory-related distortion in power amplifiers. Previously, the methods used to measure the phase response were slow and limited to narrow bandwidths. This new measurement method is extremely fast, proposes a method for normalization or calibration of the phase response, and is extremely broadband, making it suitable for measurements of wide band amplifiers such as those used in satellite communication systems.

Keywords

UHF power amplifiers; calibration; intermodulation measurement; microwave power amplifiers; phase measurement; satellite communication; wideband amplifiers; RF communications systems; amplifier memory effects; amplitude response; calibration; extremely broadband measurement method; frequency-swept tone spacing; memory-related distortion; microwave communications systems; normalization; phase response; power amplifiers; satellite communication systems; two-tone intermodulation phase measurement; two-tone intermodulation product; wide band amplifiers; Bandwidth; Broadband amplifiers; Calibration; Distortion measurement; Frequency; Intermodulation distortion; Phase distortion; Phase measurement; Power amplifiers; Satellite communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2003. 33rd European

Print_ISBN

1-58053-834-7

Type

conf

DOI

10.1109/EUMC.2003.1262261

Filename

1262261