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Coplanar Waveguide Bandpass Filter

Application ID: 12099


Coplanar waveguide (CPW) bandpass filters can be designed using interdigital capacitors (IDCs) and short-circuited stub inductors (SSIs). This is a very efficient manufacturing method for producing bandpass filters, which can readily be implemented on a GaAs wafer.

The Coplanar Waveguide Bandpass Filter tutorial model presents a design that is compact in relation to its resonant frequency and provides a relatively high Q factor as compared to capacitively coupled microstrip line model designs. It uses the Multielement uniform lumped port feature of the COMSOL Multiphysics software in order to excite and/or terminate each element of the respective ports equally.

This application was built using the following:

RF Module

The combination of COMSOL® products required to model your application depends on the physics interfaces that define it. Particular physics interfaces may be common to several products (see the Specification Chart for more details). To determine the right combination of products for your project, you should evaluate all of your needs in light of each product\'s capabilities, consultation with the COMSOL Sales and Support teams, and the use of an evaluation license.