Microstrip rectangular patch antenna with comb shape slot

Abstract In this paper fractal geometry in comb shape is placed with a rectangular slit and circular slot. A DGS structure is applied on the ground which gives the result as improved performance. The radiating patch is designed on FR-4 substrate for 2.4 GHz frequency which is used for mobile and Wi-Fi application. Simulations are done on HFSS software. Return loss is achieved for comb shape antenna is 21.31 dB at 2.4 GHz frequency and 30.76 dB at 4.4 GHz frequency. After applying DGS technique return loss is achieved as 37.28 dB at 2.4 GHz frequency and 33.87 dB at 4.4 GHz frequency.