Analysis of angle error extraction method based on a reconfigurable antenna array with asymmetric structure

In order to meet the requirements for reconfiguration and multi-polarization, an array with seven subarrays is designed. The subarray has a shape of regular hexagon, and contains two orthogonal polarization feed ports. The angel error extraction method for this asymmetric array is discussed. After regrouping and weighting of subarrays, the sum and difference beams can be obtained in simulation. And then the angle error curves under multi-polarization are got. The results show that there are consistent trend and good linearity of various polarization types. Due to the geometry property of array, the directional slope of pitch greater than the value of azimuth.