Compact Dual-Polarized Shared-Dipole Antennas for Base Station Applications
Compact Dual-Polarized Shared-Dipole Antennas for Base Station Applications
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DOI：
10.1109/tap.2018.2871717
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发表时间：
2018-09
影响因子：
5.7
通讯作者：
Lehu Wen;S. Gao;Q. Luo;C. Mao;Wei Hu;Yingzeng Yin;Yonggang Zhou;Qiwei Wang
中科院分区：
文献类型：
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作者：
Lehu Wen;S. Gao;Q. Luo;C. Mao;Wei Hu;Yingzeng Yin;Yonggang Zhou;Qiwei Wang
近年来，交叉偶极（CD）天线在无线通信系统中被广泛用于双极化。本文提出了一种新的双极化共享偶极子天线的设计思想。与传统的CD天线不同，DPSD天线的两个正交极化共用臂。这种设计技术导致显着的尺寸减小和高隔离度相比，传统的CD天线。理论分析了该天线的工作原理。为了验证所提出的设计概念，两个新的DPSD天线的设计，制造和测量。第一个设计是一个四端口DPSD天线，这是一个简单的演示DPSD天线的工作原理。第二种设计是高度集成的DPSD天线，它避免了使用馈电网络，并提供了一个简单的配置来设计双极化天线。两种DPSD天线都设计为在1.7-2.7 GHz下工作，用于基站应用。仿真和实测结果表明，两种DPSD天线均具有较宽的带宽，驻波比为35 dB dB。此外，增益和半功率波束宽度的变化分别小于±0.55 dB和±3.5°。
Crossed-dipole (CD) antennas have been widely employed for dual polarization in wireless communication systems in recent years. In this paper, a novel design concept of dual-polarized shared-dipole (DPSD) antenna is presented. Different from the traditional CD antennas, the arms of the DPSD antenna are shared for two orthogonal polarizations. This design technique leads to significant size reduction and high isolation compared to the traditional CD antennas. The operation principle of the proposed antenna is theoretically analyzed. To validate the presented design concept, two novel DPSD antennas are designed, fabricated, and measured. The first design is a four-port DPSD antenna, which is a straightforward demonstration of the operation principle of the DPSD antenna. The second design is a highly integrated DPSD antenna, which avoids the use of a feed network and provides a simple configuration to design the dual-polarized antenna. Both of the DPSD antennas are designed to operate at 1.7–2.7 GHz for base station applications. The simulated and measured results confirm that the two DPSD antennas have wide bandwidth with VSWR 35 dB dB. In addition, stable gain and half-power beamwidth are obtained with the variance less than ±0.55 dB and ±3.5°, respectively.