Gain enhancement of telemetry antenna using metamaterial

Abstract

This paper presents the design of a meta-material lens over a patch antenna using omega shaped resonators for S-Band. Meta-material cover which acts as a lens will focus the electromagnetic field in the desired manner to enhance the Gain and impedance band width. Omega structures are complex structures which couple a rod and ring geometry to generate negative permittivity and permeability. The design approach of the meta-material and the retrieval method of negative refractive index from the scattering parameters are analyzed. Meta-material lens and the antenna are fabricated and the antenna parameters are analysed. Use of meta-material to enhance Gain helps to build planar low profile, light weight antennas in place of bulky dish based telemetry antennas.