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 April 3, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
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
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created June 30, 2004, Updated October 12, 2021