Design Of Multi-band Double I-shaped slot Microstrip Patch Antenna With Defected Ground Structure for Wireless Application

摘要

This paper proposes a design of multiband Double I-shape slot microstrip patch antenna with dumbbell shape DGS (Defected Ground Structure). The antenna structure comprises double I-shape slotted antenna with Dumbbell shape DGS for wireless applications. The antenna is designed by using FR-4 epoxy (Fire Retardent-4) as a substrate and obtained the multiband results at 2.45 GHz, 3.58 GHz and 5.50 GHz. This antenna structure is farther modified by incorporating parasitic elements parallel at the radiating edge of patch. This modified antenna is resonated at four frequencies at 2.45 GHz, 3.60 GHz, 4.68 GHz and 5.50 GHz respectively and analyzed for the antenna parameter like VSWR, antenna gain, bandwidth and radiation pattern. HFSS simulation software has been used for designing and simulation of the proposed antenna. HFSS software is used for simulating microwave passive components.