Single loop resonator: dual-band magnetic metamaterial structure

A novel sub-wavelength metamaterial structure, called a single loop resonator, is presented, providing two separate magnetic resonance frequencies in addition to an electric resonance in the microwave region. Transmission and reflection characteristics of the proposed topology are simulated using both Ansoft HFSS software and CST Microwave Studio software for the verification of numerical results. Effective medium parameters of this metamaterial structure are also extracted to demonstrate the presence of two separate frequency bands with negative effective permeability.