Mesh Reflector Antennas with Complex Weaves: PO/Periodic MoM and Equivalent Strip Width Verification

This paper numerically analyzes reflector antennas with complex mesh weave patterns by using extended physical optics (PO) combined with the periodic method of moments (MoM). Periodic MoM calculates the transmission coefficient matrix (T-matrix) of the realistic, complex weave pattern of the planar mesh, in order to calculate the modified PO current on the mesh reflector. The analysis of the mesh reflectors with two different complex weave patterns (single Satin and single Atlas at Ka band) is performed to exemplify the application of the extended PO/periodic MoM algorithm. The paper also verifies the equivalent strip width for a cylindrical wire for mesh reflector antennas with experimental and numerical analysis.