The purpose of this communication is to discuss a difficulty that may be encountered in applying the geometrical theory of diffraction (GTD) to calculate the radar cross section (RCS) of polygonal plates. To this end, the simple example of a square plate is considered. 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. © 1990 IEEE
Pelosi, G., Tiberio, R., Puccini, S., Maci, S. (1990). Applying GTD to calculate the RCS of polygonal plates. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 38(8), 1294-1298 [10.1109/8.56970].
Applying GTD to calculate the RCS of polygonal plates
Tiberio, Roberto;Maci, Stefano
1990-01-01
Abstract
The purpose of this communication is to discuss a difficulty that may be encountered in applying the geometrical theory of diffraction (GTD) to calculate the radar cross section (RCS) of polygonal plates. To this end, the simple example of a square plate is considered. 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. © 1990 IEEE
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https://hdl.handle.net/11365/1038629