A source-pull/load-pull measurement system including power amplifier linearization using simple instantaneous memoryless polynomial base-band predistortion

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Abstract

In this paper, an original measurement system for non-linear power characterization is presented. This set-up enables optimization of output power or power added efficiency (PAE) in conjunction with transistor's linearization. The optimization of the fundamental impedances is performed using source-pull/load-pull measurements before a base-band predistortion is carried out. The linearization method for complex modulated carrier is based on the measurement of the instantaneous AM/AM characteristic and on the measurement of the AM/PM conversion. Therefore, an instantaneous memoryless polynomial base-band predistortion is obtained. Experimental results at 1.575 GHz for a commercial GaAs MESFET transistor biased in class AB show improvements equal to 15 dB and 5 dB for the C/I3 and ACPR values, respectively.

Original languageEnglish
Title of host publicationProceedings of the 36th European Microwave Conference, EuMC 2006
PublisherIEEE Computer Society
Pages252-254
Number of pages3
ISBN (Print)2960055160, 9782960055160
DOIs
Publication statusPublished - 1 Jan 2006
Event36th European Microwave Conference, EuMC 2006 - Manchester, United Kingdom
Duration: 10 Sept 200612 Sept 2006

Publication series

NameProceedings of the 36th European Microwave Conference, EuMC 2006

Conference

Conference36th European Microwave Conference, EuMC 2006
Country/TerritoryUnited Kingdom
CityManchester
Period10/09/0612/09/06

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