Elliptical reflector in strong chiral medium supporting PPV and NPV simultaneously

Abstract

The high-frequency electromagnetic waves reflected from a perfect electric conductor (PEC) elliptical surface placed in homogeneous, reciprocal, and isotropic medium with high value of chirality parameter are analyzed. Negative phase velocity (NPV) and positive phase velocity (PPV) can be obtained by properly adjusting the value of chirality parameter. For the value of only PPV can propagate in the elliptical reflector and out of this range both PPV and NPV are supported by the elliptical reflector in chiral medium. The line plots are given which illustrate the reflected waves at different values of chirality parameter .