| 一种宽带双极化共享折合臂天线设计 |
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| 引用本文： | 任晓飞,王琼,贺双. 一种宽带双极化共享折合臂天线设计[J]. 电波科学学报, 2022, 37(5): 862-867. DOI: 10.12265/j.cjors.2021280 |
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| 作者姓名： | 任晓飞 王琼 贺双 |
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| 作者单位： | 中国电波传播研究所, 青岛 266107 |
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| 基金项目： | 国家稳定支持项目(A131906W08) |
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| 摘 要： | 针对L、S波段双极化信号宽带监测，提出了一种宽带双极化共享折合臂（dual-polarized shared-folded-dipole，DPSFD）天线. 天线采用宽度渐变振子臂和共享折合枝节结构，这种设计使天线的相对带宽由原来的57.8%拓宽到85.7%，并改善了天线高频段方向图分裂的问题. 理论和实验测试表明:天线在1.6~4 GHz频带范围内，电压驻波比小于2，典型增益为8.3 dBi，天线尺寸仅为最低工作频率对应波长的28%. 新设计的天线可应用于通信信号宽带双极化监测系统中.
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| 关 键 词： | 双极化天线 宽带天线 折合振子 小型化 共享臂天线 |
| 收稿时间： | 2021-10-21 |
Design of a wideband dual-polarized shared folded dipole antenna |
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| Affiliation: | China Research Institute of Radiowave Propagation, Qingdao 266107, China |
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| Abstract: | A broadband dual polarization shared folded arm antenna is proposed for L and S-band dual polarization signal broadband monitoring. The antenna adopts width changing arms and a shared folding branch structure. This design widens the relative bandwidth of the antenna from 57.78% to 85.7%, and improves the problem of pattern splitting in the high frequency band of the antenna. Theoretical and experimental result show that the voltage standing wave ratio(VSWR) of the antenna is less than 2.0 in the frequency band of 1.6?4.0 GHz, the typical gain is 8.3 dBi, and the size of the antenna is only 28% the wavelength corresponding to the lowest frequency. The proposed antenna can be applied to broadband dual polarization monitoring system of communication signal. |
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