Novel Dual Band Microstrip Circular Patch Antennas Loaded with ENG and MNG Metamaterials

الملخص EN

Novel design of a dual band microstrip circular patch antenna loaded with ENG (ε negative) metamaterial has been shown in the first section.

Using ENG metamaterial instead of the conventional dielectric, unconventional TM δ10 ( 1 < δ < 2 ) mode was produced to yield a dual band performance.

Optimized parameters such as permittivity (ε 1) and filling ratio ( η ) of metamaterials were selected with the aid of a MATLAB based parameter optimization algorithm, developed for all these sort of patch antennas.

In the second section, a dual band circular patch antenna loaded with MNG (µ negative) metamaterial has been reported.

An unconventional modified TM δ10 ( 0 < δ < 1 ) mode has been produced along with conventional TM110 mode due to using MNG metamaterial.

Here also the optimum values of permeability (µ1) and filling ratio ( η ) for these sorts of patch antennas have been calculated from a MATLAB based parameter optimization algorithm.

Both the proposed antennas provide good and resonance and satisfactory radiation performances (directivity, radiation efficiency, and gain) with a dual band performance.