Novel Structure Design of Micro Strip Patch Antenna Loaded with Slot and DGS Technique for Wideband Applications

Abstract

This paper focused on dual band Micro strip Patch Antenna Using Slots and Defective Ground Structure (DGS) to achieve moderate gain and wide bandwidth. The multiple octagonal patches are integrated using slots in a top layer. The proposed antenna dimensions are 35mm width, 45 mm length and 1.6mm height. Analyzed various iterations, observed that the best results are achieved using slot and DGS technique for this proposed novel design structure. The antenna resonates at 11.40GHz and 13.16GHz with return loss of -20.7dB and -25.83dB respectively. Voltage standing wave ratio (VSWR) 1.20 and 1.10, peak gain (G) is achieved 4.13dB at 11.40GHz and 5.15dB at 13.16GHz. Maximum directivity notify 4.13 at 11.40GHz and 4.22 at 13.16GHz. The proposed antenna is very good applicant for wideband applications.