A Dual Broadband Antenna for V2X, LTE, and 5G Vehicular Communication Systems

In this paper, we present a novel dual broadband antenna tailored for vehicular applications. The antenna design incorporates circular and square patches, metal cylinders, and conductive vias. Our simulated results demonstrate an impressive impedance bandwidth spanning from 3.71 GHz to 3.85 GHz for |S
11
|<-10 and from 4.47 GHz to 5.91 GHz for |S
22
|<-10, effectively covering crucial V2X, LTE, and early 5G frequency bands. Moreover, the proposed antenna showcases peak gains ranging from 5.62 dBi to 9.75 dBi, delivering exceptional directionality and wide beamwidth. These characteristics are aimed at ensuring reliable and efficient communication for modern vehicular systems, supporting advanced applications such as autonomous driving and advanced driver assistance system (ADAS).