COUPLING BETWEEN PARALLEL CIRCULAR OPEN CHIROWAVEGUIDES

The coupling between two parallel identical circular open chirowavegui des has been investigated. The coupling coefficient has been evaluated and its variation with different parameters such as chirality admitta nce, normalized frequency, relative permittivity and normalized separa tion has been studied. It has been found that the coupling variation w ith chirality or frequency presents a peak. Increasing the chirality a dmittance enhances the peaks of the coupling which occur at lower and lower frequencies with smaller and smaller bandwidths. These character istics seem to point out that the chirowaveguides have more flexibilit y and are more advantageous than their dielectric counterparts.