Optimise Waveguide Pin Feed Location

Analyse the effect of the pin offset on the reflection coefficient using an optimisation grid search and the NGF solution settings.

A waveguide can be fed using a pin placed at a quarter of a waveguide wavelength from a terminated waveguide end. For an arbitrary cross-sectioned waveguide, the waveguide wavelength is not always known making it difficult to determine the pin feed position.
Figure 1. A 3D view of the waveguide fed with a pin feed and waveguide port.


Tip: Find the completed model in the application macro library1.
1 The application macro library is located on the Home tab, in the Scripting group. Click the Application Macro icon and from the drop-down list, select Example Guide.