Broadband dual-polarized dipole antenna for LTE/5G base station applications

ABSTRACT

This article presents a broadband dual-polarized dipole antenna for LTE/5G base station, which consists of loop dipoles, T-shaped cross-feeding lines, L-shaped parasitic elements, and metallic cylinders. As a result, the test results show good achievement of wide band (48.6%, 2.21–3.63 GHz), stable gain (8.3 dBi) and high port-to-port isolation (>30 dB). In addition, good cross-polarization discrimination (XPD) (>30 dB) and stable radiation pattern (${65.5}^{\circ }\pm {5.5}^{\circ }$) on horizontal plane are realized over the band by employing a rectangular box-shaped reflector. Furthermore, with simple structure, this antenna can provide partial reference for the design of LTE/5G base station antennas.

KEYWORDS:

• LTE/5G
• base station antenna
• broadband
• high isolation

Data availability statement

The authors confirm that the data supporting the findings of this study are available within the article.

Declaration of interest statement

The authors declare that there is no conflict of interest regarding the publication of this article.

Additional information

Funding

This work was supported in part by the National Natural Science Foundation of China under [Grant No. 41606203 & 61601074]; and in part by the Chongqing Technology Innovation and Application Development Project under [Grant No. cstc2019jscx-msxmX0049]; and in part by the Chongqing Graduate Research and Innovation Project under [Grant No. CYS19266].