A Broadband $\pm 45^{\circ}$ Dual-Polarized Antenna With Y-Shaped Feeding Lines
A Broadband $\pm 45^{\circ}$ Dual-Polarized Antenna With Y-Shaped Feeding Lines
复制标题
DOI：
10.1109/tap.2014.2381238
复制
发表时间：
2015-02
影响因子：
5.7
通讯作者：
Q. Chu;Dingliang Wen;Yu Luo
中科院分区：
文献类型：
--
作者：
Q. Chu;Dingliang Wen;Yu Luo
提出了一种适用于2G/3G/LTE频段的宽带±45°双极化基站天线。所提出的天线具有Y形馈线赋予它一个宽的阻抗带宽，和一个矩形盒形的反射器，以提高其在工作频率的辐射方向图的稳定性。所提出的天线的原型设计，制造和测试。测试结果表明，在1.7 ~ 2.7GHz频率范围内，天线的阻抗带宽为45%，端口隔离度为25 dB，辐射方向图稳定，3dB波束宽度为68°±2°，增益为8.2 ± 0.6dBi。设计了一种适用于基站的五单元宽带双极化天线阵。测试结果表明，在整个工作频带内，阵列增益为14.8 ± 1.4dBi，H面3dB波束宽度在端口1为66.56°±2.22°，端口2为64.85°±4.96°。仿真结果与实测结果吻合较好。
A broadband ±45° dual-polarized base station antenna is proposed for 2G/3G/LTE bands. The proposed antenna has Y-shaped feeding lines to impart a wide impedance bandwidth to it, and a rectangular box-shaped reflector to enhance its stability in radiation patterns over the operating frequencies. A prototype of the proposed antenna is designed, fabricated, and tested. The measured results show achievement of impedance bandwidth of 45% for at both ports, port-to-port isolation 25 dB , a stable radiation pattern with 3-dB beamwidth 68°±2° at H-plane and V-plane, and a stable antenna gain of 8.2 ± 0.6 dBi from 1.7 to 2.7 GHz. A broadband dual-polarized antenna array with five elements for the band is developed for base station application. Measurements show achievement of array gain of 14.8 ± 1.4 dBi, 3-dB beamwidth 66.56°±2.22° at H-plane at port 1 and 64.85°±4.96° at port 2 with over the operating frequency band. Simulation results have a good agreement with measurement ones.