Dualband notch loaded semi-circular disk microstrip patch antenna

In this paper, a dual resonance frequency antenna is achieved by introducing notch and shorting pin in semicircular disk. It is analyzed by using circuit theory concept. The resonance frequencies are found to be 2.84 GHz and 6.33 GHz, and the bandwidth of the proposed antenna for lower and upper resonance frequency are found to be 9.94% and 13.8% respectively. The frequency ratio and antenna efficiency are 2.28 and 90.68% respectively. The theoretical results are compared with IE3D simulation as well as reported experimental results, and they are in good agreement.