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给出了多层圆极化罩的等效电路模型和一种设计方法,直接对圆极化罩的等效电路模型进行求解,求解出满足形成圆极化的电路导纳值,根据导纳求解值和电磁场软件仿真可以非常容易地确定每层金属栅的结构参数。基于文中给出的设计方法,分析设计了常用的2层、3层和4层圆极化罩,给出了设计结果和仿真结果,仿真结果和设计结果非常吻合,验证了设计方法的正确性。这种基于电路求解的设计方法具有突出优点:原理清晰、设计简单且设计结果非常准确。
The equivalent circuit model and a design method of multi-layer circular polarization cover are given. The equivalent circuit model of circular polarization cover is solved directly to find the circuit admittance value that satisfies the circular polarization. According to admittance Solving the values and simulating electromagnetic field software can very easily determine the structural parameters of each metal grid. Based on the design method presented in this paper, the commonly used 2, 3 and 4 circular polarization domes are analyzed and designed. The design results and simulation results are given. The simulation results are in good agreement with the design results, which verify the correctness of the design method . This method of circuit-based design has outstanding advantages: clear principles, simple design and very accurate design results.