Metamaterial Loaded Dual-Band Circularly Polarized Compact Implantable Antenna with and without Shorting Pin

Abstract

In this treatise, a neoteric metamaterial (MTM) loaded dual-band circularly polarized (CP) compact implantable antenna has been proposed for ISM band (2.4 GHz to 2.48 GHz) and GSM band (1.78 GHz to 1.83 GHz).The work focuses on the analysis of multiple different metamaterial designs, integration of shorting pin at the optimal position and then, combining both technologies.The integration of an MTM structure on the superstrate layer makes the antenna circularly polarized with broad axial ratio bandwidth and impedance bandwidth, and splendid reflection coefficient. Integrating a shorting pin, which connects the substrate layer to the ground plate, makes the antenna dual-band, meliorate impedance matching, produces consequential gain enhancement, low SAR and shows robust CP behavior at both frequency bands and aids in further miniaturization. Backscatter radiation and the comprehensive complexity of the antenna is diminished by slot-less ground plate. The proposed technologies simplify the design of dual-band circularly polarized compact and wideband implantable antenna which makes it competent for efficacious implantable applications. Blueprint of the proposed antenna configuration and correlated mensuration are delineated.