同相馈电双正交振子的圆极化实现

为了实现双正交振子的圆极化,正交同相馈电双振子天线的研究为设计圆极化的天线提供了依据,使振子天线在通信领域中得到更广泛的应用。通过对同相馈电双正交振子结构的理论分析,研究了同相馈电双正交振子天线实现圆极化的基本原理,得出振子的长度与半径和轴比之间的关系,继而实现了双正交振子天线的圆极化。利用HFSS软件进行仿真以验证矩量法计算结果的正确性。结果显示,通过改变振子的长度和半径,可以改善天线的轴比,实现天线的圆极化。

Implementation of double quadrature circularly polorized dipoles fed by current with same phase

The circular-polarized antenna is widely used in the communication area.The research of the circular-polarized dipoles is the basic work of the circular-polarized antenna.It can help design the circular-polarized antenna.Firstly,analysis was made of the basic theory of the implementation of double quadrature circularly polarized dipoles fed by current with the same phase through the analysis to the structure of the dipoles.Then the axial-ratio of this antenna was calculated by the method of moment.By calculating the connections between the length,radius and the axial-ratio were obtained.Finally through simulation with HFSS,the correctness of MoM was proved.There is a relationship between length,radius and axis-ratio.The result provides some valuable reference for the design of circularly polarized antenna.