Title :
Scattering from three-dimensional cracks
Author :
Dominek, Allen K. ; Shamansky, Harry T. ; Wang, Nan
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
5/1/1989 12:00:00 AM
Abstract :
Scattering from three-dimensional cracks is analyzed and measured. The crack geometry is modeled as a rectangular groove in a perfectly conducting surface. The groove forming the crack may be terminated with an open aperture creating a slit in the conducting surface or with an impedance boundary creating a trough. The scattered fields from a crack are analyzed with two types of scattering mechanisms: a component directly related to the scattered fields from a two-dimensional crack, and a traveling-wave component
Keywords :
backscatter; electromagnetic wave scattering; EM scattering; backscatter; equivalent current scattering; impedance boundary; open aperture; perfectly conducting surface; rectangular groove; three-dimensional cracks; travelling wave scattering; Aerodynamics; Apertures; Geometry; Magnetic field measurement; Magnetosphere; Moment methods; Scattering; Surface cracks; Surface impedance; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
