材料科学
光学
天线测量
可重构天线
潜望镜天线
辐射模式
天线(收音机)
阻抗匹配
声学
电阻抗
同轴天线
物理
电气工程
工程类
作者
Yiyue Guo,Минг Су,Yuanan Liu
标识
DOI:10.1109/mape53743.2022.9935225
摘要
In this paper, a pattern reconfigurable antenna based on liquid metal is proposed. The metal reflector of the antenna is replaced by two transparent PC(Polycarbonate) channels. The state of the antenna reflector is changed by injecting liquid metal into different transparent PC channels through the pressure pump, so as to provide four pattern modes. The four modes bring three main beam directions of – 48°, 0° and 44° respectively. When the main beam direction is 0, the two modes can provide different half power beam widths. The half power beam width of the other two modes with deflection in the main beam direction can be maintained above 80 ° and the gain can be maintained above 6dB. The working center frequency of the antenna is 2.6GHz, the impedance bandwidth is 220MHz, and the isolation is more than 20dB. Results show that the proposed liquid patch antenna produces a satisfactory impedance matching, and a good agreement between simulation and measurement in terms of radiation characteristics is achieved at the desired frequency. This kind of antenna can be widely used in communication base in the future.
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