Characteristic Parameters of a Coaxial Cable

Application ID: 40951


Electrical cables, also called transmission lines, are used everywhere in the modern world to transmit both power and data. These cables carry electromagnetic energy, but instead of dealing with the full complexity of the electromagnetic fields, they are more commonly classified according to parameters such as capacitance, inductance, and impedance.

In this model of a coaxial cable, we demonstrate how to compute the cable parameters from a simulation of the electromagnetic fields and compare them to the analytic theory in the DC and high frequency limit.

This model is discussed in the following COMSOL Blog post: https://www.comsol.com/blogs/model-cables-and-transmission-lines-in-comsol-multiphysics/

This application example illustrates applications of this type that would nominally be built using the following products:

AC/DCモジュール RFモジュール