Circular patch antenna with circular and rectangular slots

The microstrip patch antenna which is a type of antenna manufactured and measured to operate at the frequency of 9.93 GHz. The results of |S11| simulation and measurement are in good agreement. The designed antenna has one circular slot in the center and two rectangular slots with adding double wings to the right and left sides of the antenna differently from reference antenna. These transactions have been made to get more gain. The S11 and antenna gain simulations were measured as −11.64 dB and 10.15 dB respectively. Antenna was designed for SHF-10 GHz band.