Compact Dual Polarized Inverted Omega Shape Loaded 4G and 5G Antenna for BTS Applications

Abstract

A dual-band and dual slant ± 450 polarized omega shape loaded MIMO antenna element, operating for 4G LTE-A (2.3-2.4 GHz) and 5G (3.4-3.6 GHz) applications are presented. Dual-band is realized by introducing a ‘Ʊ' shape loaded with the planar printed dipole antenna element. The omega dimensions are optimized to operate the antenna in dual-band 4G and 5G. Dual slant ± 450 polarization is achieved by utilizing two such modified dipole antennas in orthogonal orientation. The unidirectional radiation pattern for 4G and 5G simultaneous operation is achieved by concatenating the electric conductor as a ground plane. The antenna is backed by a metallic ground plane at λ0/4 for 4G and 5G operations. The antenna exhibits a measured beam width of 720 and 890 with a gain of 7.32 dB and 8.12 dB for a VSWR 1.5 and 2.0 in 4G and 5G frequency bands respectively.