Electrodynamical analysis of metamaterial waveguides coated with silicon carbides

Abstract

Here we present our calculation results of electromagnetic (EM) field intensity and vector distributions as well as the dispersion characteristic (phase and attenuation constants) of open two-layered cylindrical waveguides. Waveguides are consisted a metamaterial core which coated by a silicon carbide (SiC) layer. The electrodynamical analysis was performed for three waveguides with the metamaterial core radii r are equal to 1.0, 2,0, 3,0 mm when the external waveguide radius R=5 mm. We discovered a narrow frequency range when the waveguides have the very large attenuations. We find also the very important feature of the waveguides that the ones may have a one - mode regime with a very low attenuation of the hybrid propagating mode in the frequency range from 12.5 to 16 GHz. The electric and magnetic field intensity (strength) and their vector distributions in the waveguide transversal cross-section were calculated in about 26000 points and 1680 points on the radius 2R.