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 Module RF Module
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.