基于场论谈基尔霍夫定律新的表达式推导

摘要

Kirchhoff s law is a basic law of circuit, while the Maxwell equations is a basic law of electromagnetic field. To study the theoretical basis for transmission line, a new expression of Kirchhoff's current law and voltage law is derived and studied by field theory (electrical network theory). The new expression discusses the relations between Kirchhoff's law and field theory (electrical network theory), provides a reference for the transmission, reflection and application of signal in the PCB, and further analyzes the transmission line theory.%基尔霍夫定律是电路基本定律,而麦克斯韦方程组则是电磁场基本定律.为了研究传输线所要用到的理论基础,采用场论思想(又称电网络理论),通过推导和研究得到了基尔霍夫电流定律和电压定律的新表示式,该新表示式对探讨基尔霍夫定律与场论(电网络理论)之间的关系,进一步研究传输线理论、信号在PCB的传播、反射及应用有一定的借鉴作用.