Backscattering for Arbitrary Angles of Incidence of a Plane Electromagnetic Wave on a Perfectly Conducting Spheroid with Small Eccentricity

摘要

The scattering of a plane electromagnetic wave by a perfectly conducting spheroid with small eccentricity is treated by a method of expanding the scattered field directly in a series of spherical vector wave functions. An expression for the first‐order solution of the backscattered field is obtained for arbitrary angles of incidence of a plane wave. The numerical values of echo areas computed from the first‐order expression are shown for various cases, and rough experimental results are also discussed. During this study some mathematical formulas involving the associated Legendre functions have been derived.