Effect of Displacement Error of Dielectric Rod Antenna Used in Phased Array Radar on Radiation Performance

The effect of displacement errors of dielectric rod antenna arrays on radiation performance is analyzed in this paper. For dielectric rod antenna arrays, there will be horizontal and vertical displacement errors during the assembly process, which will interfere with the radiation pattern of the antenna array. Displacement changes based on Gaussian random errors are added to the antenna array in order to more effectively describe the displacement errors present in the antenna array. The analysis of the displacement error on the performance of the antenna array helps to evaluate the actual performance of the radar and provides a reference for the improvement of the antenna element assembly process.