Title :
Semi-asymptotic analysis of Bragg coupling on quasiperiodic impedance rod
Author_Institution :
Dept. of Phys., Electron. & Comput. Syst., Oles Honchar Dnipropetrovsk Nat. Univ., Dnipropetrovsk, Ukraine
Abstract :
Phenomena of coupling of wave beam and surface wave at impedance rod with spatially oscillating parameters are theoretically considered. Used method is asymptotic with respect to smoothness parameter and is numerical with respect to perturbation amplitudes. It combines advantages of the asymptotic and numeric methods in cases of quasiperiodic structures with large number of “periods”. Obtained coupling coefficients are compared with known asymptotic expressions.
Keywords :
electromagnetic wave propagation; finite difference methods; surface electromagnetic waves; Bragg coupling; asymptotic expressions; numeric methods; perturbation amplitudes; quasiperiodic impedance rod; quasiperiodic structures; semi-asymptotic analysis; smoothness parameter; surface wave; wave beam; Acoustic beams; Couplings; Electromagnetics; Harmonic analysis; Impedance; Surface impedance; Surface waves; Bragg coupling; Impedance rod; finite differences; quasiperiodic structures; semi-asymptotic method; surface wave; wave beam;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2014 XIXth International Seminar/Workshop on
Conference_Location :
Tbilisi
Print_ISBN :
978-1-4799-6213-6
DOI :
10.1109/DIPED.2014.6958345
