In this communication an analysis of elliptical patch microstrip array antenna is presented. The Full Wave Analysis and Method of Moment have been applied to developed field equation and resonance frequency for elliptical shape antenna. In Full Wave Analysis we solve wave equation by the Mathieu Special function in combined form as well as separate (Radial and Cylindrical) form. But due to some mathematical complication we had to switch Method of moment analysis with the help of cavity model of Elliptical elements on thin dielectric substrates support only TM modes. The far field radiation patterns in the Oblate mode are obtained for E plane and H plane. A comparison of characteristics of circular and elliptical microstrip patch antenna printed on RT‐duroid is also presented in this paper.