Heuristic approaches application limits for calculation of electromagnetic diffraction by polyhedrons and other scatterers
DOI:
https://doi.org/10.1109/ICATT.2011.6170800Keywords:
electromagnetic scattering, scattering, diffraction, physical optics, GTD, PTD, plane edge diffraction, wedge diffractionAbstract
Different heuristic approaches, such as physical optics method, method of equivalent edge currents and modyfied method of equivalent edge currents [1] are exemplified in a problem of electromagnetic scattering by a plane angular sector.
Comparing with rigorous results [2] has shown that for the problem of electromagnetic diffraction by polyhedrons physical optics method can lead to serious mistakes, method of equivalent edge currents gives a qualitatively correct solution and modified solution by equivalent edge currents method is the most close to a rigorous one.
References
VESNIK, M.V. On a Possibility of Constructing a Refined Heuristic Solution for the Problem of Diffraction by a Plane Angular Sector. Journal of Communications Technology and Electronics, 2011, v.56, n.5, p.531-543.
KLINKENBUSCH, L. Electromagnetic Scattering by a Quarter Plane. Proc. of the 2005 IEEE Antennas and Propagation Society Int. Symp., 3-8 July 2005, v.3B, p.163-166.
OZTURK, A.K.; PAKNYS, R.; TRUEMAN, C.W. Vertex Diffracted Edge Waves on a Perfectly Conducting Plane Angular Sector. IEEE Trans. Antennas Propag., Mar. 2011, v.59, n.3, p.888-897.
