A Novel LCP substrate dual band antenna loaded with T-shaped resonator and Circular slot

Abstract

A novel Liquid Crystal Polymer (LCP) substrate based dual band antenna for C-band and satellite applications is proposed. The novel LCP substrate is made by suitable proportionate concentration of Liquid Crystal and a Polymer. The antenna designed by this substrate shows the resonance at 4.45 & 6.9GHz with $S_{11} < -10$dB bandwidth of about 6.02% (4.31-4.584GHz) and 2.89% (6.83–7.03GHz) respectively. The proposed design has a compact size of $0.59\lambda_{l}\times0.59\lambda_{l}\times 0.01\lambda_{l}$ at a lowest resonant frequency of 4.45GHz. The proposed antenna exhibits good impedance matching and overall radiation characteristics.