A Single-Layer 10–30 GHz Reflectarray Antenna for the Internet of Vehicles

A novel ultra-wideband (UWB) reflectarray antenna for the Internet of Vehicles (IoV) is introduced in this paper. By simply connecting neighboring elements, proposed achieves a remarkable radiation pattern bandwidth 20 GHz, ranging from 10 GHz to 30 GHz. To explain operating principles antenna, equivalent circuit (EQC) model unit cell built, which also provides an efficient and rapid way analyze performance element. It found EQC analysis that connected elements can achieve better reflection phase responses than conventional separated thereby improving array bandwidth. As proof concept, 503-element simultaneously covering vehicle-to-satellite bands (12.25–12.75 GHz/14.0–14.5 GHz/19.6–21.2 GHz/29.4–31.0 GHz), 24-GHz short-range vehicle radar band (24.25–26.65 GHz) 5G millimeter-wave (27.5–28.35 designed, fabricated, characterized. The experimental results demonstrate presented maintain undistorted beams, high gain, low cross-pol level, moderate aperture efficiency over 100%, i.e., With its simple planar as well excellent performance, be promising candidate vehicles require reliable data-rate satellite links connections simultaneously.