对于采用自定位设计的模块化天线阵，推导了单元位置误差和子阵位置误差的取值范围与天线副瓣累积概率的关系，以及相位误差与天线副瓣累积概率的关系。通过实例证明，欲实现的天线的副瓣值不同，不同方向的位置误差对天线副瓣累积概率的影响是不同的。

The sidelobe of an array antenna with self-locating structure is analysed in this paper. The expressions are derived which relate the cumulative probability of sidelobe to the range of element position errors , subarray position errors and a phase error in each element. The computation and simulation results show that the effect of the same position errors on the sidelobe level of an array antenna with subarrays is different when the max sidelobe of the array antenna is different.

TN82