A compact Ultra WideBand monopole antenna with five rejected-bands

The paper proposes a compact UWB (Ultra Wide Band) antenna with five band notched covering the frequency range from 2.5 GHz to 11.58 GHz with VSWR (voltage standing wave ratio) less than 2. The proposed antenna has a size of 30x30 mm2. To achieve the rejected band, five slots are inserted in the radiating element and the feed-line including the WiMAX (3.23.6 GHz), C-band (3.8-4.2 GHz and 5.725-7.075 GHz) WLAN (5.15-5.85 GHz) and X-band (8.025-8.4 GHz). The simulated results show a good arrangement and an acceptable value of VSWR with different simulators. The radiation patterns are omni-directional in the XZ plane and bidirectional in the YZ plane.