Ultrawideband printed superquadric monopole antennas with two band-notch features

In this paper, a parametric study of a novel Ultra Wide-Band (UWB) superquadric shaped monopole antenna is presented. The antenna size is 44 times 44 mm² and has feeding structure of a 50 ohms microstrip line. The edges of the antenna ground plane were constructed as superquadric arch shapes in order to improve higher frequency of UWB band. Simulation was carried out using the Finite Difference Time Domain (FDTD) technique to understand the behavior of the antenna model and optimize their parameters. The proposed antenna has an acceptable omnidirectional radiation pattern. Moreover, the antenna is designed to reject the limited two frequency bands by using two slots in the antenna surface. This antenna not only satisfies all UWB but also rejects the limited bands in order to avoid possible interference with the existing 3.4-3.69 GHz band for the Worldwide Interoperability for Microwave Access (WiMAX) and 5.15-5.825 GHz band for Wireless Local Area Network (WLAN).