Abstract
In order to meet the communication requirements of multi-band base station antennas, an ultra-wideband dual-polarized 5G base station antenna integrating n77/n78/n79 frequency bands is proposed. The main radiator of the antenna is composed of two pairs of arrow cross-dipoles placed at ± 45°, and the antenna impedance bandwidth is guaranteed by adding four rectangular parasitic patches and opening rectangular slots. The designed parasitic patch expands the bandwidth while enhancing the dual-polarization characteristics of the antenna. Furthermore, a box-type reflector is employed, which facilitates obtaining high gain and good half-power beamwidth. Finally, a sample of the antenna is fabricated and tested. As shown in the measurement results, the − 10 dB impedance bandwidth reaches up to 51.9% (3.0–5.1 GHz) with the antenna isolation in the working frequency band better than 24 dB. In the frequency range of 3.3–5 GHz, the antenna achieves a high gain of 9 dB and a HPBW of 64 ± 2°, and the cross-polarization ratio is better than 21 dB overall. Compared to traditional base station antennas, this antenna has significant advantages in terms of gain and HPBW.
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Funding
The project is funded by Major National Science and Technology Projects, Grant No. 2 013ZX03005011, key research funding project of colleges and universities in Henan Province Grant No. 17A510002 and Doctoral Foundation of Henan Polytechnic University Grant No. B2016-18.
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SW was mainly responsible for the language modification in the thesis; XL was mainly responsible for the experimental simulation and thesis writing in the thesis; WA was mainly responsible for the actual testing of the antenna prototype.
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Wang, S., Li, X. & An, W. Ultra-wideband Dual-Polarized Base Station Antenna Design Applied to n77/n78/n79 Bands. Iran J Sci Technol Trans Electr Eng (2024). https://doi.org/10.1007/s40998-023-00683-w
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DOI: https://doi.org/10.1007/s40998-023-00683-w