A Multiport Measurement System for Complex Distortion Measurements of Nonlinear Microwave Systems

Author

El-Deeb, Walid S. ; Boulejfen, Noureddine ; Ghannouchi, Fadhel M.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada

Volume

59

Issue

5

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

1406

Lastpage

1413

Abstract

An effective multiport measurement system for the characterization of N-port nonlinear microwave devices is proposed. The proposed measurement system has the capability of measuring the S-parameters of linear microwave circuits and the amplitude-modulation-to-amplitude-modulation (AM/AM) and amplitude-modulation-to-phase-modulation (AM/PM) conversions for fundamental and harmonic frequencies for nonlinear microwave devices on single-step measurement without any need for reconnection or change in the calibration technique or measurement setup. It is found suitable that the proposed system can accurately quantify the impact of crosstalk on the performance of multibranch amplifiers and multiport nonlinear microwave systems in terms of power efficiency and signal distortion.

Keywords

S-parameters; amplitude modulation; linearisation techniques; microwave amplifiers; multiport networks; nonlinear network analysis; phase modulation; power amplifiers; S-parameter measurement; amplitude modulation-to-amplitude modulation; amplitude modulation-to-phase modulation; complex distortion measurement; linear microwave circuits; multibranch amplifiers; multiport measurement system; multiport nonlinear microwave systems; nonlinear microwave device; Active load-pull; calibration; microwave transition analyzer (MTA); multiport measurements; nonlinear characterization; power amplifier (PA); radio frequency (RF);

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2010.2045033

Filename

5439913