Metamaterial inspired patch antenna miniaturization technique for Satellite

This paper presents the design of a metamaterial inspired symmetrical slotted patch antenna for triband operation with center frequency 2.5 GHz. antenna is designed. The outer dimensions of the patch are designed such that the antenna resonates at the upper resonant frequency. In addition, the dimensions of the slots are designed to control the lower resonant frequency and the bandwidth. The paper presents the selection of the dimensions of the patch antenna and artificial substrate to control the resonant frequencies and bandwidth of antenna. The experimental results are presented thoroughly and compared with the analytic calculations. An analytical method is utilized to predict the features of the simulation results, implying that within a certain frequency range, negative value of permittivity and permeability are obtained due to metametarials. The Sparameters as a performance matrix with -35.1532dB are obtained from antenna simulations carried using High Frequency Structure Simulator version 11. These parameters are used to retrieve the effective permittivity and permeability. Numerous Simulations have been carried out for different shapes of metamaterial included in microstrip patch antenna in the microwave regime. The structure optimally simulated is proposed for the application of metamaterials as antenna substrate to primarily enhance directivity by minimizing its refractive index typically in negative regime. Further design includes review and critical discussions on the effect of slotting and chopping on the metamaterial inspired patch antenna.