磁耦合谐振式无线电能传输系统有着传输效率高、传输距离远以及传输功率大等优点。天线作为该系统的核心部分,直接影响到系统的传输效率。用HFSS软件仿真设计螺旋半径50~100 mm之间的6组天线模型,研究了发射和接收天线在能量传输过程中发生频率分裂的现象,通过电容值调节使发射和接收天线达到良好匹配,提升了原谐振频率点处的传输效率,同时分析了天线传输效率与螺旋半径之间的关系。
Magnetic coupling resonant radio energy transmission system has many advantages, such as high transmission efficiency, long transmission distance and high transmission power, which attract researchers at home and abroad. As the core part of the system, the antenna has a direct impact on the transmission efficiency. Using HFSS software to simulate and design 6 sets of antenna model, the helix radius of the antenna is between 50 mm and 100 mm. The frequency splitting phenomenon of transmitting and receiving antennas in the process of energy transmission is analyzed. The matching between transmitting and receiving antennas is achieved by adjusting the capacitor's value. Thus, the transmission efficiency of the original resonant frequency point is improved. The relationship between the transmission efficiency and the radius of the antenna is analyzed.
2019,41(1): 129-132 收稿日期:2017-12-21
DOI:10.3404/j.issn.1672-7649.2019.01.025
分类号:TP391.9
基金项目:江苏省重点研发计划资助项目(BE2016723)
作者简介:夏俊(1992-),男,硕士研究生,研究方向为电子与通信工程
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