Receiver noise calibration for a vector network analyzer

A simple and accurate noise calibration technique for a vector network analyzer is presented. Enhanced and mathematically improved from authors' previous work, it provides a simple analytical procedure for the obtaining of the receiver noise parameters and its gain-bandwidth product. Previous approximations in the gain-bandwidth product obtaining are avoided in this new approach. The procedure makes use of a standard SOLT S-parameter calibration kit as impedance generator. Measurement results in the 1-2 GHz range are given.