Comments on "Conversions Between S, Z, Y, h, ABCD, and T Parameters which are Valid for Complex Source and Load Impedances"

Published

April 1, 1995

Author(s)

Roger Marks, Dylan F. Williams

Abstract

In his recent paper, Frickey presents formulas for conversions between various network matrices. Four of these matrices (Z, Y, h, and ABCD) relate voltages and currents at the ports: the other two (S and T) relate wave quantities. These relationships depend on the definitions of the waves themselves in terms of voltage and current. Frickey's results are based on an unconventional definition of the waves, whose resulting properties are unfamiliar to most microwave engineers. As a result, application of his formulas can easily lead to catastrophic errors. Frickey replies to the comments made by Marks and Williams.

Citation

IEEE Transactions on Microwave Theory and Techniques

Volume

43

Issue

4

Pub Type

Journals

Download Paper

https://doi.org/10.1109/22.375247

Citation

Marks, R. and Williams, D. (1995), Comments on "Conversions Between S, Z, Y, h, ABCD, and T Parameters which are Valid for Complex Source and Load Impedances", IEEE Transactions on Microwave Theory and Techniques, [online], https://doi.org/10.1109/22.375247 (Accessed October 11, 2025)