Broadband psi (Ψ) Shaped Antenna for Multiple Frequency Coverage

The design of a Broadband psi shaped anteena for multiple band coverage i.e for Bluetooth,Wifi,WiMax and satellite communication applications is presented in this paper. The Antenna designed in this paper is used for Bluetooth operating at 2.4Ghz band and Wifi operates at frequency of 5Ghz and WiMax operates at frequency of2.5/3.5-Ghz.The antenna design proposed in this paper is of FR4 epoxy substrate whose dimensions are 48.5mm and 26mm with thickness of 6mm.The rectangular substrate is now cut into a psi shape of required dimensions. The rectangular substrate is now cut into split rings at four positions on the substrate ,and another split ring is employed in first split ring for the better gain and low refection coefficient by edge feeding. The dimensions of the patch, the ground, and the three slots are optimized to obtain these desired functional frequency ranges.