A novel Ultra-wideband Wide-angle scanning Dual-polarized antenna with multilayer dielectric

Abstract In this paper, a dual-polarized planar ultra-wideband modular antenna (PUMA) with wide-scanning angle matching layers is proposed. The multiple dielectric and frequency selective surfaces (FSS) are loaded on the dipoles. Each surface etched plate as one wide-angle -matching layer. By applying three wide-angle-matching layers, performance guaranteed. As for performance, metal cylinder added to lower space between adjacent dipoles, upper end of has certain distance from dipole. This forms “ridge” structure which shift problematic common-mode resonances caused by circulating current out band. A 256-port array (16×16) set simulated. simulation result indicates that proposed operating over 4.79GHz -20.15GHz (4.20:1) achieves VSWR<3 while scanning 60° in E-plane D-plane, 45° H-plane respectively.