Open AccessPlanar LTE/sub‐6 GHz 5G MIMO antenna integrated with mmWave 5G beamforming phased array antennas for V2X applications
Author(s) -
Ko Minbeom,
Lee Hojoo,
Choi Jaehoon
Publication year - 2020
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2019.0849
Subject(s) - beamforming , phased array , directional antenna , planar array , ground plane , antenna (radio) , mimo , planar , antenna array , omnidirectional antenna , optics , physics , computer science , electronic engineering , telecommunications , engineering , computer graphics (images)
A planar LTE/sub‐6 GHz 5G multiple‐input and multiple‐output (MIMO) antenna integrated with mmWave 5G beamforming phased array antennas for future vehicle‐to‐everything (V2X) applications is proposed. The proposed antenna consists of two multi‐band elements for LTE and sub‐6 GHz 5G bands, two single‐band elements for the sub‐6 GHz 5G band, and four mmWave 5G beamforming phased array antennas. Two compact multi‐band antennas are located on the opposite side of the ground plane and are arranged orthogonally to each other. Four mmWave 5G beamforming phased array antennas are located at the four sides of the ground plane for 360 ° coverage in the azimuth plane. All antennas are optimised for loading with a polycarbonate dielectric housing. The proposed antenna satisfies the −10 dB reflection coefficient ( S 11 ) requirement from 0.84 to 0.96 GHz, 1.22 to 2.04 GHz, 2.42 to 4.62 GHz, 25.1 to 31.4 GHz, and 33 to 34.8 GHz. A high isolation level of >20 dB is achieved. The realised gains of the low band antennas are higher than 2.51 dBi, while those of the mmWave 5G array antennas are higher than 15.6 and 11.3 dBi at 0 ° and 45 ° scan angles, respectively.