Efficient analysis of the far field pattern of rectangular microstrip patch using the stationary phase method

In this work, the influence of uniaxial anisotropy in the substrate on radiation pattern of a rectangular microstrip patch is investigated using an integral equation formulation. The proposed method for determining the Green's function leads to a concise form of this, diagonalized in the (TM,TE) representation. The stationary phase method is used for computing the far zone field. Numerical results for the effects of uniaxial anisotropy in the substrate on the radiation of the rectangular microstrip structure are presented. A comparison between the radiation of the first two fundamental modes TM/sub 10/ and TM/sub 01/ is also given.