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A study of the effect of envelope impedance on intermodulation asymmetry using a two-tone time domain measurement system

Williams, David J., Leckey, J. and Tasker, Paul J. 2002. A study of the effect of envelope impedance on intermodulation asymmetry using a two-tone time domain measurement system. Presented at: 2002 IEEE MTT-S International Microwave Symposium, Seattle, WA, USA, 2-7 June 2002. 2002 IEEE MTT-S International Microwave Symposium Digest. Los Alamitos, CA: IEEE, pp. 1841-1844. 10.1109/MWSYM.2002.1012221

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Abstract

An error corrected two-tone time domain measurement system has been developed and combined with a low frequency active source and load-pull system to investigate the effects of all impedance terminations, IF and RF, on the linearity and efficiency of power transistors. Measured data is presented on a HBT biased in class B stimulated by-a two-tone signal while actively load pulling the low frequency IF component.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords: Calibration; Current measurement; Distortion measurement; Frequency measurement; Impedance; Linearity; Oscilloscopes; Power measurement; Time measurement; Voltage
Publisher: IEEE
ISBN: 0780372395
ISSN: 0149-645X
Last Modified: 04 Jun 2017 03:27
URI: http://orca.cf.ac.uk/id/eprint/21505

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