A triple-band ± 45° dual-polarized dipole antenna is presented in this paper. The proposed antenna covers two n77 bands and one n79 band in 5G NR frequency spectrums with S11, S22 <− 15 dB return loss. The profile antenna exhibits the measured impedance bandwidths of 250 MHz, 150 MHz and 350 MHz from the operating bands 3.6-3.85 GHz, 4.05-4.2 GHz and 4.8-5.15 GHz respectively. Antenna is fabricated with four substrates; one radiator, one reflector and two feeding baluns. Antenna is designed and optimized with HFSS simulator and fabricated for experimental verification. Antenna gives a stable radiation pattern of 8.55 dBi high gain with 70° half power beam width (HPBW) that makes it a good candidate for wireless 5G sub-6 GHz and multiband base station applications. Finally, antenna is tested in a realistic application environment to show the utility of the proposed antenna for wireless sub-6 GHz IoT applications.