Bandwidth Enhancement OfRectangular Microstrip Patch Antenna For WLAN Application Using DGS
Bhuvnesh Nagori
, M.P.Patel
Electronics & Communication, S.S. Engineering College. Sidsar, Bhavnagar, India
Electronics & Communication, S.S. Engineering College. Sidsar, Bhavnagar, India
Vol. 3, Issue 13 pp. - 🌐 Open Access
ABSTRACT
Defected Ground Structure (DGS) helps in improving the characteristics of many microwave devices. The ground plane of the antenna is etched to change the various properties of the structure. The DGS on the ground plane increases the fringing fields which introduces parasitic capacitance. This introduced parasitic capacitance increase the coupling between the ground plane and the patch, as a result we get enhanced bandwidth. Hence the DGS can be assumed to be an equivalent LC resonator circuit. The position and size of the defect determines the value of LC at a given frequency. The design is suitable for WLAN 3.6/4.9 Ghz and WLAN 5-5.25 Ghz frequency. The simulation is carried out using HFSS simulator.
Keywords:
Transmission line model, Defected Ground Structure (DGS), Rectangular Microstrip patch antenna
