Title :
Excitation of modes guided by a cylindrical channel in a lossy gyrotropic medium
Author :
Kin, Vasiliy A Es ; Kudrin, Alexander V.
Author_Institution :
Dept. of Radiophys., Univ. of Nizhny Novgorod, Nizhny Novgorod, Russia
Abstract :
A study is made of the excitation of electromagnetic waves by a given ring electric current in a lossy gyrotropic medium containing an inhomogeneity in the form of a cylindrical channel capable of guiding the excited waves. The channel is aligned with the gyrotropic axis of the medium. It is shown that under certain conditions, dissipative losses in the gyrotropic medium can lead to a substantial redistribution of the source radiation power over the spatial spectrum of the modes guided by the channel compared with the case of a lossless medium. Numerical results are presented that illustrate these changes in the efficiency of excitation of the guided modes.
Keywords :
absorbing media; electromagnetic wave propagation; inhomogeneous media; losses; optical rotation; cylindrical channel; dissipative losses; electromagnetic waves; excited waves; inhomogeneous medium; lossy gyrotropic medium; ring electric current; Artificial neural networks; Current; Electromagnetic scattering; Plasmas; Propagation constant; Resistance; Tensile stress;
Conference_Titel :
Electromagnetic Theory (EMTS), 2010 URSI International Symposium on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-5155-5
Electronic_ISBN :
978-1-4244-5154-8
DOI :
10.1109/URSI-EMTS.2010.5636999
