关于n端口元件互易性的讨论

A DISCUSSION ON RECIPROCITY FOR N-PORT ELEMENTS

本文提出用一个等价的新定义去取代原有的定常线性或非线性ｎ端口元件互易性的定义，增强了直观性；并证明了原有定义只是其互易性的充分必要条件。

A new definition on the reciprocity for time-invary linear or nonlinear n-port elements is proposed in the paper. The new definition can be used instead of old one, so that the intuition of definition is intensified. It is proved that the old definition is only a sufficient-essential conditcon of the reciprocity.