Radiation characteristics of cylindrical microstrip array antenna with two symmetrically placed elements

Abstract

In this report, an effective solution, by the method of moments in the spatial domain, is employed to analyze a cylindrically conformal array antenna, which consists of two symmetrically placed radiating elements. Each element represents either a single patch or an array of patches. The solution needs to spatially analyse the Green's function for electrical sheet currents symmetrically distributed on the surface of a dielectric coated cylinder. The Green's function for a single sheet current has been already derived due to a special annihilating technique. Now we seek to extend the single patch solution to arrays of patches symmetrically placed on a dielectric substrate. In addition, some steps are made in an effort to advance the solution to electrically large cylinders. A probe considered in terms of a line charge model excites each patch.