Low-Profile and Wide-Beamwidth Dual-Polarized Distributed Microstrip Antenna
Low-Profile and Wide-Beamwidth Dual-Polarized Distributed Microstrip Antenna
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薄型宽波束双极化分布式微带天线
DOI：
10.1109/access.2017.2661278
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发表时间：
2017-01
期刊：
影响因子：
3.9
通讯作者：
Chen Xi
中科院分区：
文献类型：
--
作者：
Chen Xi
提出了一种低剖面宽波束双极化分布式微带天线。四个孤立的微贴片被建议作为辐射组件，并通过一个紧凑的差分馈电网络激励。两条对角线上的微贴片分别决定了两个极化的工作频带。通过增加微贴片之间的距离，可以展宽E面的波束宽度。贴片和接地平面之间的短路极点用于实现良好的阻抗匹配。研究了紧凑型双极化差分馈电网络，并与实现最佳天线性能的网络进行了比较。为了验证所提出的方法，宽波束双极化分布式微带天线，其双极化工作在2和2.2 GHz，分别进行了制造和测量。天线的外部尺寸为70 mm<inline-formula><tex-math notation="LaTeX">$\times 10$</tex-math></inline-formula> mm（<inline-formula><tex-math notation="LaTeX">$0.49\lambda \times 0.07\lambda$</tex-math></inline-formula>）。实验结果与模拟结果吻合较好。E面3dB波束宽度分别达到116°和115°，两个极化方向的增益分别为5.15和5.5dB。同时，交叉极化小于-26.2和-27.8 dB。此外，9.2%和9.9%的阻抗带宽VSWR<inline-formula><tex-math notation="LaTeX">$\leq 2$实现</tex-math></inline-formula>，端口隔离度大于25.4 dB的频带内。
A low-profile and wide-beamwidth dual-polarized distributed microstrip antenna is presented in this paper. Four isolated micro patches are proposed as the radiation components and are excited by a compact differential-fed network. The micro patches in two diagonals determine the operating frequency bands of the two polarizations, respectively. By increasing the distances between the micro patches, the beamwidth in E plane can be broadened. Shorting poles between the patches and the ground plane are used to achieve good impedance matching. Compact dual-polarized differential-fed networks are also studied and compared with achieve the best antenna performance. To validate the proposed method, a wide-beamwith dual-polarized distributed microstrip antenna, whose dual polarizations operate at 2 and 2.2 GHz, respectively, is manufactured and measured. The external dimensions of the antenna is 70mm<inline-formula> <tex-math notation="LaTeX">$\times 10$ </tex-math></inline-formula>mm (<inline-formula> <tex-math notation="LaTeX">$0.49\lambda \times 0.07\lambda$ </tex-math></inline-formula>). The experimental results agree well with the simulated ones. The 3dB beamwidths in E planes reach 116° and 115°, and the gains are 5.15 and 5.5 dB for two polarizations, respectively. Meanwhile, the cross polarizations are less than −26.2 and −27.8 dB. In addition, the impedance bandwidths of 9.2% and 9.9% for VSWR<inline-formula> <tex-math notation="LaTeX">$\leq 2$ </tex-math></inline-formula> are achieved, and the port isolation is greater than 25.4 dB in the bands.
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影响因子：
5.7
作者：
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通讯作者：
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适用于 2G/3G/LTE 基站的宽带双极化平面天线
影响因子：
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DOI：
10.1109/icmmt.2002.1187716
发表时间：
2002-08
期刊：
2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002.
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影响因子：
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作者：
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