Three models of filter will be designed and analyzed using WIPL-D powerful built in feature Filter Designer. Filter Designer is user-friendly, wizard-like GUI with straightforward two-stage filter. It is intended for automated design of lowpass, highpass, bandpass and bandstop filters of Chebyshev and Butterworth type.
Here, the filter type is lowpass and approximation is considered to be Chebyshev. The first model is implemented as LC ladder, the second one as transmission line while the third is microstrip filter. The third model is also simulated in WIPL-D 3D EM solver by using full electromagnetic analysis.
Operating band of interest is between 0.014 GHz and 2.8 GHz. Due to powerful built-in interpolation, it is sufficient to run the model in 11 frequency points (EM simulation) at any standard desktop or laptop. Simulation time for circuit models is negligible, while for full-wave EM model is a couple of seconds per frequency point.