# Microstrip Port

Different configurations using a microstrip port are considered.

The first configuration considered is to define a microstrip port on the full width of the microstrip line. For the second and third configurations, a feed structure is created using polygons to decrease the width of the microstrip port.

## Narrow Version

To decrease the width of the microstrip port, a polygon is added to the microstrip line to act as the feed structure. For better accuracy, ensure that the width of the microstrip port is roughly $\frac{1}{5}$ of the microstrip line width.