Analysis of Stand-Alone Rectangular Patch Antennas by the Transmission Line Model

The rectangular patch is by far the most widely used microstrip antenna configuration. The simplest analytical description of a rectangular microstrip patch exploits transmission-line theory and models the patch as two uniformly illuminated radiating slots, taking into account the fringing of the fields at the patch edges, separated by a transmission line of very low characteristic impedance.

A MATLAB application has been developed to calculate the input impedance and radiation pattern of rectangular microstrip patches.