Invariant Properties Of Similar Hybrid Matrix Coefficients

Two-ports in hybrid connections are considered. The transfer and sensitivity properties of similar two-ports are considered. The transform of connections for passive two-ports and changes of their internal structures have been noticed. Two types of similarity and their sensitivities are given. Sensitivities are considered with respect to corresponding elements of networks or with respect to parameters of two-ports. For these sensitivity analysis, sensitivity invariants of networks function of similar networks with two-ports are derived. Sensitivity invariants of networks with two-ports (in hybrid connections) can be used to test and find fault in electronic networks with active two-ports.