Wide-Band T-Shaped Microstrip-Fed Twin-Slot Array Antenna

Abstract

A numerical simulation and an experimental implementation of T-shaped microstrip-fed printed slot array antenna are presented in this paper.The proposed antenna with relative permittivity 4.3 and thickness 1.0mm is analyzed by the finite-difference time-domain (FDTD) method.The dependence of design parameters on the bandwidth characteristics is investigated.The measured bandwidth of twin-slot array antenna is from 1.37 GHz to 2.388 GHz, which is approximately 53.9 % for return loss less than or equal to -10 dB.The bandwidth of twin-slot is about 1.06 % larger than that of single-slot antenna.The measured results are in good agreement with the FDTD results.