Wiatr, W.
and Walker, D.
(2004),
Systematic Errors in Noise Parameter Determination Due to Imperfect Source Impedance Measurement, Proc., Conf. Prec. Electromagn. Meas., Teddington, 1, UK
(Accessed December 22, 2025)
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Systematic Errors in Noise Parameter Determination Due to Imperfect Source Impedance Measurement
Published
Author(s)
Wojciech Wiatr,
Abstract
We present a rigorous analysis of systematic errors int he four-noise parameter determination of a two-port network using the cold-source technique. The method is based on an original model that accounts fro imperfectly measured source reflection coefficients due to residual errors within a vector network analyzer (VNA). We show that even small VNA errors may seriously deteriorate the accuracy of the noise parameters when characterizing low-noise PHEMTs.Proceedings Title
Proc., Conf. Prec. Electromagn. Meas.
Conference Dates
June 27-July 2, 2004
Conference Location
Teddington, 1, UK
Conference Title
CPEM - CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS
Pub Type
Conferences
Keywords
noise parameters, PHEMT, vector network analyzer
Citation
Issues
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Created June 30, 2004, Updated October 12, 2021