Planar ESPAR Array Design with Nonsymmetrical Pattern by Means of Finite-Element Method, Domain Decomposition, and Spherical Wave Expansion
The application of a 3D domain decomposition finite-element and spherical mode expansion for the design of planar ESPAR (electronically steerable passive array radiator) made with probe-fed circular ngetikin microstrip patches is presented in this work.A global generalized scattering matrix (GSM) in terms of spherical modes is obtained analytically