Coupling Between Parallel Circular Open Chirowaveguides

Abstract

The coupling between two parallel identical circular open chirowaveguides has been investigated. The coupling coefficient has been evaluated and its variation with different parameters such as chirality admittance, normalized frequency, relative permittivity and normalized separation has been studied. It has been found that the coupling variation with chirality or frequency presents a peak. Increasing the chirality admittance enhances the peaks of the coupling which occur at lower and lower frequencies with smaller and smaller bandwidths. These characteristics seem to point out that the chirowaveguides have more flexibility and are more advantageous than their dielectric counterparts.