ENG ZOR Antenna for Implantable Biomedical Service

Abstract

An epsilon negative (ENG) zeroth-order resonance (ZOR) antenna for medical implant communication system (MICS) is proposed. Owing to the fact that a ZOR antenna can be realized in compact size if the shunt capacitance and shunt inductance are large enough, the electrical size of the proposed antenna is only 0.020 λ0 x 0.017 λ0 x 0.002 λ0 (λ0: the wavelength at the center frequency of MICS band) including the ground plane. Moreover, the return loss property of the proposed antenna is very insensitive to the permittivity and size of the human body model.