Filter Characterized by Imported S-Parameters via a Touchstone File
Application ID: 45571
A Touchstone file describes the frequency responses of an n-port network circuit in terms of S-parameters. This can be used to simplify arbitrarily complex circuits. The Touchstone file can be obtained from numerical simulations or network analyzer measurements.
The obtained file for a two-port network can then be included in simulations without building the complicated shape of the circuit. In this example, a low-pass filter between two coaxial connectors is modeled using a two-port network feature and imported S-parameters via a Touchstone file. The results include electric field distribution within the coaxial connectors and the S-parameters.
This model example illustrates applications of this type that would nominally be built using the following products:
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.