Design and simulation of a vivaldi antenna fed by coplanar waveguide

Abstract

This paper designed a Vivaldi antenna fed by coplanar waveguide (CPW) with band width. The designed antenna had simple structure, which was easy to fabricate. The discussed Vivaldi antenna in this paper was simulated by using the full-wave electromagnetic simulation software, and the specific simulation results were provided. The average voltage standing wave ratio (VSWR) was 2 within the frequency range of 2 to 6 GHz. The simulated axial ratio (AR) at the boresight direction within the working frequency range was higher than 20 dB. The wide beams and steady gains were also observed in accordance with the simulation results. The design and simulation results of Vivaldi antenna fed by CPW in this paper can provide a reference for the practical engineering application.