3.1 Drawing the ports

In the next step of preparing this project we proceed to drawing and configuring the exciting port. For that purpose we switch to Model tab, press Template button and choose Insert Template Source option. The procedure is the same as in the case of previously considered waveguide to coaxial line transition. We need to place the port in the waveguide thus, we should select four inner edges of the waveguide cross section and use From Pick option to automatically adjust port dimensions to the waveguide's inside.

Then we switch to Parameters tab in Create Template Port dialogue to set up the port parameters. We excite the antenna with fundamental TE10 mode in the frequency range from 18 to 30 GHz. The port settings are shown in picture below and we accept them by pressing OK button.

Create Template Port dialogue with port settings for the horn antenna.