Title :
Applying GTD to calculate the RCS of polygonal plates
Author :
Pelosi, Giuseppe ; Tiberio, Roberto ; Puccini, Stefano ; Maci, Stefano
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
fDate :
8/1/1990 12:00:00 AM
Abstract :
A difficulty that may be encountered in applying the geometrical theory of diffraction (GTD) to calculate the radar cross section (RDC) of polygonal plates is discussed. The simple example of a square plate is considered and it is shown that when the same specular direction is reached through two different pattern cuts, a different value of the total scattered field is obtained. This difference may be quite noticeable for impedance plates. Its physical explanation suggests a suitable alternative approach to overcome this difficulty
Keywords :
electromagnetic wave scattering; radar cross-sections; GTD; RCS; geometrical theory of diffraction; impedance plates; polygonal plates; radar cross section; scattered field; square plate; Boundary conditions; Conductivity; Electromagnetic scattering; Gratings; Maxwell equations; Optical scattering; Optical surface waves; Optimized production technology; Polarization; Surface impedance;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
