A Cylindrical Ultra-wideband Monopole Antenna Design

Abstract

With the rapid development of modern electronic communication technologies, many systems need to integrate antennas of different frequencies and use an ultra-wideband antenna for better working performance. In this paper, a small-scale, ultra-wideband antenna is designed, which is in the form of a cylindrical monopole antenna. The simulation results show that the antenna can work normally in the range of 300MHz∼6GHz. Under the strict lateral size and floor size requirements, the VSWR is less than 2.5 and the average gain at the horizon is stable. This ultra-wideband monopole antenna has broad application prospects in broadband passive direction-finding systems and monitoring systems.