Compact broadband microstrip antenna for radionavigation

Proposed compact broadband microstrip patch antenna has been designed by increasing the substrate height and inserting the slots at different angles. At the center frequency of 2.9955 GHz impedance bandwidth of 153.6 MHz, return loss of -35.6595 dB, Gain of 8.57dBi and very good radiation pattern in the broadside direction is achieved. Which can be used for radio navigation and in radar for detecting positions of living and non living objects. MSA is simulated by Zeland IE3D software using Method of Moment (MoM) technique.