Effect of finite screen and monopole's height on radiation characteristics of monopole antenna

Abstract

This paper presents the investigation results on the effect of separate element dimensions on the radiation characteristics of coaxial X-band monopole antenna. In particular, the variations of monopole height, ground-plane dimensions, and monopole location relative to the ground plane are analyzed in details. Based on FDTD simulations a contribution of EM fields scattered by these elements in the radiation pattern formation has been shown. As a result, the regularities in the elevation angle of peak directivity changing have been determined.