Optimized ultra-wide band tetraskelion-shaped slot antenna with notches

Ultra Wide Band Technology (UWB) is rising tremendously these years. Due to its large operating bandwidth it is best suited for applications like high data rate wireless communications, imaging systems, high accuracy radars, health-care and personal entertainment. In this paper we optimized two tetraskelion designs (Design 1 and Design 2) by varying the shape and dimensions of the notches in Design 1 and Design 2. As a result, Design 1 operates in the frequency range of 3.65 GHz to 11.03 GHz and Design 2 operates in the frequency range of 3.68 GHz to 10.69 GHz. Using High Frequency Structure Simulator the characteristics of these antennas such as bandwidth, return losses, Voltage Standing Wave Ratio (VSWR) and radiation patterns are determined.