HIGH GAIN AND COAX FED MODIFY RECTANGULAR MICROSTRIP ANTENNA DESIGN FOR X BAND APPLICATION

This study presents a design of coax-fed rectangular microstrip antenna operation in different applications within the context of X-bands. High gain and radiation pattern characteristics are obtained by using coaxfed network technique. The Rogers Kappa was chosen as a substrate material for the designed patch antenna with a dielectric constant of 4.38, and a height of 2.4 mm. Simulation results are obtained and examined by using the High Frequency Structure Simulator (HFSS) software. The simulated results indicate the band from 8.2GHz to 11.7 GHz (return loss < −10 dB) and produce a gain of 6.53 dB at 8.7GHz and 11.65 dB at 11GHz, respectively