Non-left-handed transmission and bianisotropic effect in a [pi]-shaped metallic metamaterials

TL;DR

This paper investigates a [pi]-shaped metallic metamaterial that exhibits non-left-handed transmission due to bianisotropic effects, contrasting with traditional left-handed metamaterials, and highlights its unique resonant transmission properties.

Contribution

It introduces a novel [pi]-shaped metallic metamaterial demonstrating non-left-handed transmission caused by intrinsic bianisotropy, expanding understanding of metamaterial transmission behaviors.

Findings

Resonant transmission occurs near the metamaterial's resonant frequency.

The transmission is non-left-handed due to bianisotropic effects.

The metamaterial's behavior differs from traditional LHMs with split-ring resonators.

Abstract

A [pi]-shaped metallic metamaterial (geometrically, a combination medium of C-shaped resonators and continuous wires) is proposed to numerically investigate its transmission band near the resonant frequency, where otherwise it should be a negative-permeability (or negative-permittivity) stop band if either the C-shaped or continuous-wire constituent is separately considered. However, in contrast to the left-handed materials (LHMs)composed of split-ring resonators and wires as well as other metallic LHMs, this resonant transmission is a non-left-handed one as a result of the intrinsic bianisotropic effect attributed to the electrically asymmetric configuration of this [pi]-shaped metamaterial.