According to the theorem of equality ratio of the fractional linear conversion Using finite discrete detective data, gets the dissipating and reflecting attenuation of a reciprocal two-port network by computer satistical regression All the formulas are programmed on microcomputer, and the result is rather satisfactory, therefore the measuring model is feasibl

The types of interconnection of two-port networks are: series,parallel,series-parallel,parallel-series and cascade connection.

Considering the changes of a power system in topology and on the basis of the two-port network theory, a fast method to calculate the open-port voltage of positive sequence network during a large-scale power system oscillation, which is caused by asymmetrical open-conductor faults, is presented.

tuner or the televisor in VHF band by the theory of Two-port network and filter.

In this paper, the g-parameters of double-port networks in series-parallel connection are deduced, and its application in circuit analysis is introduced.

This paper adopts the theory of two port networks to simplify the sinusoidal oscillating circuit into no power two port networks and describes it with parameter of two port networks.