Title :
Improvements to diffraction coefficient for non-perfectly conducting wedges
Author :
El-Sallabi, Hassan M. ; Vainikainen, Pertti
Author_Institution :
Radio Lab., Helsinki Univ. of Technol., Finland
Abstract :
Holm proposed a heuristic uniform theory of diffraction coefficient for nonperfectly conducting wedges as an extension to the heuristic one given by Luebbers. This work improves limitations of Holm´s diffraction coefficient in the illumination region, where it is not accurate. The accuracy of the improved diffraction coefficient is very close to that of Maliuzhinets´ solution. The improvements are valid for parallel and perpendicular polarizations.
Keywords :
conducting bodies; electromagnetic wave polarisation; geometrical theory of diffraction; Holm´s diffraction coefficient; Maliuzhinet solution; UTD; illumination region; nonperfectly conducting wedge; parallel polarization; perpendicular polarization; uniform theory of diffraction; Fresnel reflection; Impedance; Lighting; Physical theory of diffraction; Polarization; Predictive models; Proposals; Ray tracing; Signal processing; Transmitters; Diffraction; propagation; uniform theory of diffraction (UTD); wedge;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.854534
