Fig. 1. Numerical experimental system model

Fig. 2. Effect of row/column number on the normalized CCS

Fig. 3. Effect of polarization angle on the normalized CCS

Fig. 4. Absolute difference of normalized CCS between other polarization angles and 0°

Fig. 5. Variation of normalized CCS with α and while l/λ is 0.295 电尺寸为0.295时孔阵归一化耦合截面随极化角度和孔间距电尺寸的变化

Fig. 6. Histogram of relative error distribution of neural network fitting results

Fig. 7. Relation between and error of neural network fitting result 电尺寸与神经网络拟合结果误差关系图

Fig. 8. Histogram of relative error distribution of neural network prediction results

Fig. 9. Comparison of predicted values of neural network and true values

Fig. 10. Experimental system in anechoic chamber

Fig. 11. Comparison of predicted values of neural network and experimental result