Decoupling of a Wideband Dual-Polarized Large-Scale Antenna Array With Dielectric Stubs

A technique of decoupling dielectric stubs (DDS) is proposed for mutual coupling reduction wideband, dual-polarized, and large-scale antenna arrays in this paper, where a low constant DDS mounting on dual-polarized wideband array seamlessly. The mechanism the qualitatively explained. By properly optimizing dimensions stubs, can reduce couplings between elements efficiently. are considered as perturbations to slightly localize electromagnetic fields emitted from element lower space wave coupling. advantages cost, high efficiency, suitable arrays. For demonstration, 4 × with without simulated, measured, compared. simulated results show that achieve all port-to-port isolations over 25 dB 4.4 5.0 GHz paths, which 7 higher than counterparts DDS. Moreover, total efficiencies also improved. measured agree well verifying effectiveness method