Title :
Modified Lamb formulas in the plane-wave scattering by flat gratings made of resistive, dielectric, and impedance strips
Author_Institution :
Inst. of Radio-Phys. & Electron., Nat. Acad. of Sci. of Ukraine, Kharkov, Ukraine
Abstract :
The term Lamb-type formulas relates to the low frequency solutions to the plane wave scattering by various grids and gratings. Here a mathematically grounded deviation of these formulas in the scattering by freestanding flat grids of resistive, dielectric and impedance strips are observed. Formulas for the flat grating of resistive strips characterized with electric resistivity, by using matrix equation have been obtained. A comparative study of the accurate and approximate solutions for the E-wave reflection coefficient for dielectric strip grating is performed.
Keywords :
dielectric materials; diffraction gratings; electrical resistivity; electromagnetic wave reflection; electromagnetic wave scattering; surface impedance; Lamb-type formulas; dielectric strip grating; electric resistivity; electromagnetic wave reflection coefficient; flat gratings; impedance strips; low frequency solutions; mathematically grounded deviation; matrix equation; modified lamb formulas; plane wave scattering; plane-wave scattering; resistive strips; Conductivity; Dielectrics; Electromagnetic scattering; Equations; Geometry; Gratings; Impedance; Polarization; Reflectivity; Strips;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on
Print_ISBN :
0-7803-8411-3
DOI :
10.1109/MSMW.2004.1345870
