A PATCH ANTENNA LOADED WITH VARACTOR FOR MULTIBAND OPERATION USING FRACTALS IN RECONFIGURABLE ANTENNA

With the headway in the growth of the wireless communication over the past few years, there lies the increase of miniaturization, multiband and cost effective. So as to meet all these requirements, Fractal antenna design is preferred. With these advantages, performance of the fractal antenna can be enhanced with the concept of reconfiguration. In this paper the Reconfiguration is achieved with the help of varactor diodes being placed in the patch with the electronic dc biasing provided at the right part of the patch and the left part of the patch is loaded with the fractals so as to obtain the multiband and miniaturization. The Proposed antenna is being designed and simulated using Ansoft-High Frequency Structure Simulator (HFSS). The proposed antenna is being operated at 2.45GHz yielding after simulation four resonant frequency that are nearly constant covering band of 2.26- 2.31GHz,5.0251GHz,7.06-7.15GHz,9.54-9.59GHz.The Gain obtained is 7.63dB.The Proposed antenna can be used in applications such as WiMax, WLAN, Satellite etc