Diffraction of plane electromagnetic waves by infinitely long 'black' screens of finite width and thickness
Abstract
Infinitely thin and completely absorbing screens are not possible, since power absorption always requires a certain construction depth. Therefore diffraction of electromagnetic waves on screens with black surfaces and of finite thickness is of practical interest. The method of integral equations is used in conjunction with the moment method and a constant surface resistance of 377 ohms is found. The integral equation is solved with the help of the Point Matching method for determining the tangential component of the magnetic field. Field calculations were made for screens with a thickness from 0.056 lambda to 2.84 lambda with constant length of 28.25 lambda.
 Publication:

Archiv Elektronik und Uebertragungstechnik
 Pub Date:
 September 1980
 Bibcode:
 1980ArElU..34..350G
 Keywords:

 Electromagnetic Radiation;
 Plane Waves;
 Screen Effect;
 Wave Diffraction;
 Integral Equations;
 Near Fields;
 Surface Properties;
 Thickness;
 Communications and Radar