Calibrated measurements of nonlinearities in narrowband amplifiers applied to intermodulation and cross modulation compensation

Author

van den Broeck, T.

Author_Institution

Vrije Univ., Brussels, Belgium

fYear

1995

fDate

16-20 May 1995

Firstpage

1155

Abstract

A vectorial nonlinear-network analyzer (VNNA) is absolutely calibrated in amplitude and phase for narrowband measurements of nonlinearities. Calibration is performed with a reference generator, characterized with a calibrated sampling oscilloscope. The reference signal, consisting of an upconverted baseband signal, is optimized for statistically efficient measurements. Using the calibrated VNNA, narrowband amplifiers can be measured, enabling compensation of intermodulation and cross-modulation.<>

Keywords

amplifiers; calibration; circuit testing; compensation; intermodulation; network analysers; calibrated VNA; calibrated measurements; calibrated sampling oscilloscope; cross modulation compensation; intermodulation compensation; narrowband amplifiers; nonlinearities; reference generator; statistically efficient measurements; upconverted baseband reference signal; vectorial nonlinear network analyzer; Calibration; Character generation; Chromium; Distortion measurement; Narrowband; Oscilloscopes; Phase measurement; Sampling methods; Signal generators; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1995., IEEE MTT-S International

Conference_Location

Orlando, FL, USA

ISSN

0149-645X

Print_ISBN

0-7803-2581-8

Type

conf

DOI

10.1109/MWSYM.1995.406171

Filename

406171