基于HFSS和无线充电的线圈天线设计
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摘要
本文基于无线充电,通过基于有限元法的电磁仿真软件(HFSS)对线圈天线进行3D建模。在二端口网络分析法的基础上,建立谐振式无线充电的等效电路模型,求解出系统最大传输效率时的表达式。基于以上方法,研究本文设计的线圈天线传输特性,包括线圈天线的S参数、驻波比、充电效率和3D电磁场分布图,得出线圈天线在中心频率2.8 GHz处发生谐振,输入回波损耗最小,为–29.11 d B,且充电效率可达到84.15%。此外,线圈天线具有成本低、结构简单等优势,因此该设计对无线充电的研究有很好的借鉴作用。
The paper is proposed based on wireless charging, we establish 3 D modeling coil antenna via electromagnetic simulation software HFSS which is based on Finite Element Method(FEM). The equivalent circuit model of wireless charging via magnetic resonance coupling is analyzed to solve the expression of the maximum transmission efficiency based on the two-port network analysis method. Based on the above method, make a research on characteristics of the coil antenna in this paper which is including: S parameters plot, standing-ware ratio, charging efficiency and 3 D electromagnetic field distribution of the coil antenna. It turns out that when the coil antenna occurs resonance at the center frequency(2.8 GHz), the input return loss is minimum(29.11 d B) and charging efficiency can reach 84.15%. In addition, the coil antenna has advantages on its lower cost and simple structure, so the design to the research of wireless charging has a good reference.
The paper is proposed based on wireless charging, we establish 3 D modeling coil antenna via electromagnetic simulation software HFSS which is based on Finite Element Method(FEM). The equivalent circuit model of wireless charging via magnetic resonance coupling is analyzed to solve the expression of the maximum transmission efficiency based on the two-port network analysis method. Based on the above method, make a research on characteristics of the coil antenna in this paper which is including: S parameters plot, standing-ware ratio, charging efficiency and 3 D electromagnetic field distribution of the coil antenna. It turns out that when the coil antenna occurs resonance at the center frequency(2.8 GHz), the input return loss is minimum(29.11 d B) and charging efficiency can reach 84.15%. In addition, the coil antenna has advantages on its lower cost and simple structure, so the design to the research of wireless charging has a good reference.
引文
[1]ZHANG Y,ZHAO Z,CHEN K.Frequency splitting analysis of four-coil resonant wireless power transfer[J].2013.
[2]AHN D,HONG S.A transmitter or a receiver consisting of two strongly coupled resonators for enhanced resonant coupling in wireless power transfer[J].Industrial Electronics,IEEETransactions on,2014,61(3):1193-1203.
[3]黄诗宗,汤宁平,王建宽.基于磁耦合谐振无线能量传输系统传输效率的研究[J].电气技术,2013(2):23-26.HUANG S Z,TANG N P,WANG J K.Research on wireless energy transmission efficiency based on magnetic coupling resonant theory[J].Electrical Engineering,2013(2):23-26.
[4]ARISTEIDIS K,J D JOANNOPOULOS,MARIN S.Wireless non-radiative energy transfer[C]//The AIP Industrial Physics Forum.2006.11.
[5]谢拥军,刘莹,李磊,等.HFSS原理与工程应用[M].北京:科学出版社,2011.
[6]李明洋,刘敏,杨放,等.HFSS天线设计[M].北京:电子工业出版社,2011.
[7]李明洋.HFSS电磁仿真设计应用详解[M].北京:人民邮电出版社,2010.
[8]KIM K Y.Wireless power transfer-principles and engineering exploration[M].In Tech:Croatia,2012.
[9]王佑贞,王平连,林苗.X波段圆极化天线的设计与实验[J].电子测量技术,2010,2(23):26-29.WANG Y Z,WANG P L,LIN M.Design and experiment of X-Band circularly polarized antenna[J].Electronic Measurement Technology,2010,2(23):26-29.
[2]AHN D,HONG S.A transmitter or a receiver consisting of two strongly coupled resonators for enhanced resonant coupling in wireless power transfer[J].Industrial Electronics,IEEETransactions on,2014,61(3):1193-1203.
[3]黄诗宗,汤宁平,王建宽.基于磁耦合谐振无线能量传输系统传输效率的研究[J].电气技术,2013(2):23-26.HUANG S Z,TANG N P,WANG J K.Research on wireless energy transmission efficiency based on magnetic coupling resonant theory[J].Electrical Engineering,2013(2):23-26.
[4]ARISTEIDIS K,J D JOANNOPOULOS,MARIN S.Wireless non-radiative energy transfer[C]//The AIP Industrial Physics Forum.2006.11.
[5]谢拥军,刘莹,李磊,等.HFSS原理与工程应用[M].北京:科学出版社,2011.
[6]李明洋,刘敏,杨放,等.HFSS天线设计[M].北京:电子工业出版社,2011.
[7]李明洋.HFSS电磁仿真设计应用详解[M].北京:人民邮电出版社,2010.
[8]KIM K Y.Wireless power transfer-principles and engineering exploration[M].In Tech:Croatia,2012.
[9]王佑贞,王平连,林苗.X波段圆极化天线的设计与实验[J].电子测量技术,2010,2(23):26-29.WANG Y Z,WANG P L,LIN M.Design and experiment of X-Band circularly polarized antenna[J].Electronic Measurement Technology,2010,2(23):26-29.