Edge Port
The feed is constructed using rectangles and polygons and fed using an edge port.
A feed structure is added at both sides of the microstrip line to connect the microstrip line and the ground plane. An edge port is added to the feed structure.
![](../../../../../../images/feko/user_guide/appendix/howtos/how_to_feed_microstrip_line_infinite_substrate/port_edge.png)
Figure 1. On the left, a side view of the feed structure. To the right, an isometric view of the partial microstrip line. The edge port is added to the feed structure.