3       Examples

In order to illustrate the usage of the QProny module, this section presents several examples of the application of the software to the analysis of microwave circuits with different quality factors. It is worthwhile to watch the Calculation Status area of the QProny window during the simulations. This window displays initial parameters and warning messages issued by the diagnostic procedures. If a model can be created, the Yellow or Green Light buttons in the QProny window become active. You may press these buttons to initiate the model creation procedure. The Red Light button in the QProny window interrupts the calculation of the model. As the model is being created, the messages concerning the model order applied for each signal are displayed in the status bar at the bottom of the QProny window. You may build a new model after each diagnostic point, provided the Yellow or Green Light buttons in the QProny window are active.

This chapter contain of the following examples:

• A simple single resonator waveguide filter

• A waveguide band pass filter

• High Q comb‑line filter