1. Multiport S-parameter and T-parameter conversion with symmetry extension
- Author
-
Frei, James, Cai, Xiao-Ding, and Muller, Stephen
- Subjects
Parameter estimation -- Methods ,Mathematical analysis -- Methods ,Microwave devices -- Research ,Electromagnetic waves -- Scattering ,Electromagnetic waves -- Observations ,Business ,Computers ,Electronics ,Electronics and electrical industries - Abstract
We propose a generalized T-matrix definition that facilitates the conversion between the S-parameter and T-parameter for multiport networks based on the well understood and mathematically simple two-port relations. This approach generalizes all multiport networks into two cases: balanced and unbalanced. Balanced networks have the same number of entrance and exit ports and are symmetric to the two-port network. Unbalanced networks generate a nonsquare T-matrix and do not have the same number of entrance and exit ports. Through careful selection of the T-matrix, this method extends two-port symmetry to multiport networks and provides an engineering implementable relationship between the S-parameter and T-parameter for multiport networks. This symmetry extension allows a practical means to cascade and deembed such networks. Index Terms--Deembedding, multiport networks, scattering parameter, transmission parameter.
- Published
- 2008