New Compact CPW-UWB Antenna Based on Slotted Quasi-Fractal Patch Radiator

Abstract

This paper presents the design, simulation, and fabrication of a new microstrip antenna of Ultra-Wide Band (UWB) technology operating within the frequency range of 3.4237 GHz to 10.824 GHz. The feeding technique used for the antenna is the Coplanar Waveguide (CPW) in conjunction with a slotted quasi-fractal patch on an FR4 substrate. The physical responses of this study show that the considered antenna covers the entire range of the UWB frequency spectrum providing the operational bandwidth of 7.4 GHz and obtaining input reflection of less than -10 dB. This type of design is different from planar antennas or microstrip patch antennas and has bidirectional radiation patterns. Its low mass, beneficial emission properties, and versatile frequency range make this small antenna suitable for many wireless communications uses, such as wireless body area networks (WBANs), microwave imaging and advanced radar systems.