Abstract
A broadband and wide-beamwidth dual-polarized orthogonal dipole antenna for 4G/5G communication is presented in this letter. A pair of orthogonal deformed fan-shaped dipoles was used to obtain dual-polarization. The parasitic elements and metal cavity structure were used to increase the impedance bandwidth effectively. And the half-power beamwidths (HPBWs) of the antenna were effectively widened by using the metal cavity. Furthermore, a 1 × 4 antenna array was designed. The measured HPBWs of E-plane and H-plane radiation patterns were greater than 90° in the operating frequency band of 1.7-3.22 GHz (voltage standing wave ratio (VSWR) <; 2.0), and the gain was greater than 0 dBi in the range of ±60° pitch angle. The isolation of the two input ports was higher than 29 dB in the band of 1.7-3.22 GHz (61.8%).
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