信号流图在二端口网络参数转换中的应用

The Application of Signal Flow Graph in Conversion of Two-port Network Parameters

二端口网络的四个电压、电流之间的关系,可用六套不同参数和方程描述.对一个线性非时变的无源二端口网络来说,六套参数之间满足一定的关系,可以互相转换.用信号流图法推导出了二端口网络六套参数之间的关系,转换方法简便,物理意义明确.

The relationship of the four voltages and currents in two-pore networks can be described using six different kinds of parameters and equations. To passive two-port networks of linear time-invariant, the six sets of parameters have relations and can convert each other. The relations of the six sets parameters of two-port network have been concluded by signal flow graph. The conversion methods are simple and brief and the physics meanings are definite.