【作者】 覃鹏； 王乾宇； 邓中山；

【Author】 Peng Qin;Qian-Yu Wang;Zhong-Shan Deng;Technical Institute of Physics and Chemistry,Chinese Academy of Sciences;School of Future Technology,University of Chinese Academy of Sciences;

【机构】 中国科学院理化技术研究所； 中国科学院大学未来技术学院；

【摘要】 本文提出了一种U形双频可重构液态金属单极子天线。通过注射器或注射泵等加压装置使得U形管内的液态金属EGaIn高度发生变化,从而可调节天线的谐振频率。本文通过仿真获得了一种优化的天线结构,在该结构下,当U形管内的两个液态金属枝节不等时,天线会具备双频特性。在L₁在10—18 mm范围内变化时,阻抗匹配良好,天线可连续获得2.21-8.70 GHz的超宽的工作频带。该天线具备全向辐射特性,具备5.44 dBi的最大辐射增益以及超过90%的辐射效率。更多还原

【Abstract】 In this paper,a U-shaped dual-frequency reconfigurable liquid metal monopole antenna is proposed.The height of the liquid metal EGaIn in the U-shaped tube is changed by a pressurizing device such as a syringe or a syringe pump,so that the resonant frequency of the antenna can be adjusted.The author first obtained an optimized antenna structure through HFSS simulation.Under this optimized structure,when the two liquid metal stubs in the U-shaped tube are not equal,the antenna will have dual-frequency characteristics.When L₁ changes in the range of10～18 mm,the impedance matching is good,and the antenna can continuously obtain an ultra-wide working frequency band of 2.21～8.70 GHz.The antenna has omnidirectional radiation characteristics,with a maximum radiation gain of 5.44 dBi and a radiation efficiency of over 90%.更多还原