An Irregular Elliptical Monopole Antenna for Ultra-Wide-Band (UWB) Applications with Dual Notched Bands

An irregular elliptical monopole antenna is studied. The antenna operates from 2.85 to 17.43GHz fully covering the ultra-wide-band (UWB, 3.1-10.6GHz). The total size of the UWB antenna is 28mm×40mm×1.6mm. To eliminate potential interferences in the bands of WLAN (5.15-5.85GHz), and X-band satellite communication (7.9-8.4GHz), diamond-shaped slots are etched on the antenna, with parameters carefully optimized in full wave simulations. Dual notch bands are numerically demonstrated in 5.05-5.95GHz and 7.64-8.78GHz which are successfully excluded from the original UWB spectrum.