Frequency Response Analysis of a Printed Circuit Board

S. Mathmann[1]
[1]University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics, Bielefeld, Germany
Published in 2016

During a practical course the students compare the measured frequency response of an assembled PCB (Printed Circuit Board) with the simulated data out of COMSOL Multiphysics® software. For this the whole PCB with all components are feed in the simulator and afterwards an eigenfrequency-analysis is carried out. To simplify the effort to do this, a COMSOL® app was created.

As result the user gets the eigenmodi and frequencies , which can be compared with the measured frequency response of the PCB.

The app shows the efficient use of COMSOL at a students practical course. It simplifies the input and configuration effort, but shows all parts of the work with a FEM-tool. The app is modular constructed, so that the component library and the input functions can be extended.