An Elliptical-Shaped Dual-Band UWB Notch Antenna for Wireless Applications

This paper discusses an elliptical ultrawideband (UWB) antenna and a dual-band UWB notch antenna. To achieve a UWB bandwidth, two corner cuts are etched into the rectangular slot on the partial ground plane. An inverted-U-shaped and conductor-shaped resonator are utilized to achieve dual-band notch characteristics on a partial ground plane. The suggested antenna has an overall dimension of 24x32 mm(2). The suggested UWB antenna has a gain of 4.9 dB, a bandwidth of 2.5-11 GHz, a linear phase response, a group delay of less than 1 ns, and a steady radiation pattern. The suggested UWB notch rejects WLAN and ITU bands from 5.2-5.7 GHz and 7.2-8.5 GHz, respectively, with an impedance bandwidth of 2.5-11 GHz. The UWB notch antenna features a linear phase, a group delay of less than 1 ns, and a stable radiation pattern.