Abstract
In this paper, a reconfigurable triple notched-band UWB (Ultra Wide Band) antenna is presented. This compact antenna covers the frequency range from 3.1 GHz to 11.21 GHz. In order to reject a three frequency bands including the WiMAX (3.2-3.6 GHz), WLAN (5.15-5.85 GHz) and X band (7.25-8.395 GHz), we have inserted three different slots in the radiating patch; two C-shaped slots and a rectangular slot. To achieve the reconfiguration in the notched-band antenna, we have added a PIN diode in every slot to control these slots. The proposed antenna has a size of 30×30 mm2. The simulated results show a bandwidth with VSWR less than 2 and the radiation pattern is Omni-directional in XZ plane and bidirectional in YZ plane.