International Journal of Electronics and Electical Engineering


A Planar ultra wideband antenna design is analyzed for increased impedance matching in the Ultrawideband (UWB) range (3.1GHz to 10.6GHz). Also the effect of the ground plane is minimized by cutting slot on the ground plane. Impedance matching of Ultrawideband (UWB) antenna can be improved by introducing simple microstrip transitions between the 50-ohm feed line and the printed disc. In this paper a dual step feed is proposed between the feed line and radiator. It also offers a very simple geometry suitable for low cost fabrication and straightforward printed circuit board integration. Here triangle slot is provided on the ground plane in order to reduce the ground plane effect. The radiator used here is elliptical disc.





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