Microstrip Filter

Calculate the S-parameters of a simple microstrip notch filter. Use different solvers and compare the results.

The S-parameter results are compared for the following solvers:
  • Finite substrate with FEM method.
  • Finite substrate with SEP method.
  • Infinite substrate with planar mutilayer substrate (Green's functions).
Note: Reference:

G. V. Eleftheriades and J. R. Mosig, “On the Network Characterization of Planar Passive Circuits Using the Method of Moments”, IEEE Trans. MTT, vol. 44, no. 3, March 1996, pp. 438-445, Figs 7 and 9.

Figure 1. 3D view of the microstrip filter in CADFEKO (cut plane view).