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采用传输线模型对高阻表面表面阻抗进行建模,准确计算垂直入射条件下高阻表面的反射相位.在垂直入射条件下,过孔的影响可以忽略,将高阻表面等效为具有容性的贴片阵与具有感性的介质层的并联,利用传输线原理求得高阻表面的反射系数,再得到其反射相位.计算了不同参数的高阻表面反射相位,传输线模型计算反射相位与数值方法计算结果符合较好.制作了不同参数的高阻表面并测量其反射相位,实验结果表明传输线模型计算反射相位结果与测量结果基本符合,证明了传输线模型的正确性.
The transmission line model was used to model the surface impedance of the high-resistance surface, and the reflection phase of the high-resistance surface under the normal incidence condition was accurately calculated. The influence of the vias was negligible under the vertical incidence and the high-resistance surface was equivalent to the capacitive The patch array is connected in parallel with an inductive dielectric layer, and the reflection coefficient of the high-resistance surface is obtained by the transmission line principle, and then the reflection phase is obtained. The high-resistance surface reflection phase with different parameters is calculated and the transmission line model is used to calculate the reflection phase and the numerical method The results are in good agreement.High impedance surfaces with different parameters were fabricated and their reflection phases were measured.The experimental results show that the calculated reflection phase of the transmission line model is in good agreement with the measurement results, which proves the correctness of the transmission line model.