Abstract
A ±45° dual-polarization wideband antenna for 5G base station application is proposed using cross dipoles, bow-tie-like parasitic elements and baluns. The antenna is modeled, simulated and optimized to get an optimal size of 115mm × 115mm × 27.8mm. The antenna has a -10dB bandwidth of 2.24GHz-3.75GHz and a fractional bandwidth of 50.4% and its isolation of two orthogonal ports is exceed than 25dB over the operating frequency band. The dual-polarized antenna is fabricated and measured to get a result that it has wide bandwidth, good directional radiation patterns, and high peak gain of 8.1±1.1dBi, making it suitable for 5G base station applications.
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