Parameters determination of symmetrical microwave two-ports

Matching conditions for passive symmetrical microwave two-ports with an arbitrary connect structure and component types have been determined. A classification of such two-ports with regard of the matching conditions has been validated. For parametric mismatched two-ports a relation between input admittances of the proper one-ports has been determined. The admittance values have been found for given transmission and reflection coefficients. A method for definition of parameters of mismatched two-ports with a predetermined structure, belonging to the subset of parametric mismatched two-ports has been proposed. The application of the proposed method is illustrated by examples of parameter calculations for circuits with different component bases as well experiments conducted with the circuits.