Microwave transmission through a two-dimensional, isotropic, left-handed metamaterial

TLDR

A left‑handed metamaterial has a frequency band with simultaneously negative effective permittivity and permeability, yielding a real negative index of refraction and enabling extended wave propagation. The study aims to present experimental data, numerical simulations, and analytical transfer‑matrix calculations for a two‑dimensionally isotropic left‑handed metamaterial at X‑band microwave frequencies. Experimental measurements, numerical simulations, and transfer‑matrix analyses were performed on the isotropic LHM to characterize its electromagnetic response. The physical demonstration confirms.

Abstract

We present experimental data, numerical simulations, and analytical transfer-matrix calculations for a two-dimensionally isotropic, left-handed metamaterial (LHM) at X-band microwave frequencies. A LHM is one that has a frequency band with simultaneously negative εeff(ω) and μeff(ω), thereby having real values of index of refraction and wave vectors, and exhibiting extended wave propagation over that band. Our physical demonstration of a two-dimensional isotropic LHM will now permit experiments to verify some of the explicit predictions of reversed electromagnetic-wave properties including negative index of refraction as analyzed by Veselago [Usp. Fiz. Nauk 92, 517 (1964), Sov. Phys. Usp. 10, 509 (1968)].