Viewing the Results

View and post-process the results in POSTFEKO.

Plot the magnitude of S21, S31 and S41 (in dB) on a Cartesian graph.

Figure 1. S21, S31 and S41 of the microstrip coupler.
Compare the results with the literature reference, On the design of planar microwave components using multilayer structures”, by W. Schwab and W. Menzel, IEEE Trans. MTT, vol. 40, no. 1, Jan 1992, pp. 67-72, Fig 9.
Note: The measured data from the referenced article are in good agreement with the simulated results. Any differences are most likely due to uncertainties regarding the model dimensions or dielectric properties.