Title :
Hybrid solutions for scattering from perfectly conducting bodies of revolution
Author :
Medgyesi-mitschang, Louis N. ; Wang, Dau-Sing
Author_Institution :
McDonnell Douglas Research Laboratories, St. Louis, MO, USA
fDate :
7/1/1983 12:00:00 AM
Abstract :
A current-based hybrid formulation is developed for predicting the electromagnetic scattering from conducting bodies of revolution (BOR). The electric field integral equation (EFIE) formulation of the problem is solved by incorporating the Fock solution for the surface currents on the scatterer into the method of moments (MM) solution. To treat oblique illumination, the Fock results are extended to arbitrary surfaces with torsion. The formulation is illustrated for spheres and conespheres with smooth and discontinuous joins. The analysis includes nonspecular phenomena such as creeping wave effects. Application of the physical optics (PO) approximation in this hybrid formulation is discussed. The formulation is shown to be accurate even for scatterers in the near-resonance range (i.e.,

).
Keywords :
Electromagnetic (EM) scattering; Geometrical diffraction theory; Moment methods; Conductors; Electromagnetic radiation; Electromagnetic scattering; Geometrical optics; Moment methods; Optical scattering; Optical surface waves; Physical optics; Rayleigh scattering; Testing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1983.1143114