Parametric Study of UWB Antipodal Vivaldi Antenna

Abstract

This article presents the design of Vivaldi antennas for the UWB frequency range specified by the Federal Communications Commission FCC (3.1 - 10.6 GHz). An analysis on each parameter is done to describe its effect and gives a control parameter in designing the Vivaldi antenna. The return loss responses and radiation patterns are considered in the parametric study. The results of simulations realized using CST microwave studio. The simulated results of return loss are compared with those of the measured ones and gives good agreement. The information derived from this study provides guidelines for the design and optimization of the Vivaldi antenna which are widely used for UWB applications.