A Scalable Arrangement Method for Aperiodic Array Antennas to Reduce Peak Sidelobe Level

Peak sidelobe level reduction (PSLR) is crucial in the application of large-scale array antenna, which directly determines radiation performance antenna. We study PSLR subarray aperiodic arrays and propose three structures: dislocated subarrays with uniform elements (DSUE), random (USRE), (DSRE). To optimize dislocation position elements, improved Bat algorithm (IBA) applied. draw comparison effect among these structures, we take size antennas from small to large as examples simulate calculate redundancy peak (PSLL) them. The results show that DSRE optimal structure by analyzing distance subarray, scanning angle applicable frequency. proposed design method a universal scalable method, great value