Plane wave diffraction by a thin dielectric wedge
Abstract
The diffraction of a plane electromagnetic wave by a thin dielectric wedge is studied using a set of approximate boundary conditions together with the WienerHopf technique. An integral expression for the scattered field is derived and the diffracted far field obtained by application of the method of steepest descents. The associated geometrical theory of diffraction coefficients are exact to order 0(A sq) where 2A is the (small) wedge angle. The results are useful for wedges for which /nsq1/A much less than 1, where n is the refractive index of the dielectric relative to that of the surrounding medium.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 May 1987
 Bibcode:
 1987STIN...8816912K
 Keywords:

 Dielectrics;
 Electromagnetic Radiation;
 Plane Waves;
 Wave Diffraction;
 Wedges;
 Far Fields;
 Geometrical Theory Of Diffraction;
 Refractivity;
 Steepest Descent Method;
 Wiener Hopf Equations;
 Communications and Radar