Pattern analysis of polyhedron approximation reflectors by aperture field integration method

摘要

Physical optics (PO) and the aperture field integration method (AFIM) give similar fields in electromagnetic wave scattering. ^We have discussed their equivalence for a parabolic cylinder antenna with focus feed. ^This report attempts to extend this discussion for arbitrary shape reflectors; a parabolic cylinder antenna with offset feed is chosen as a simple model. ^We have numerically compared the field using PO and AFIM and illustrated Ihe mechanism of equivalence. ^(Author)