Multi-frequency common-caliber array layout optimization method

• Main Authors: HUANG SHICHUN, YANG TIANYANG, DING YUXIANG, DUAN GUANGHUA, LI WENRONG, SUN YONGZHI, GU PENGFEI, LIU XINZHI, DING DAZHI, FAN ZHENHONG, CAO JUN, HE ZI
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a multi-frequency common-caliber array layout optimization method. Dividing the working frequency band into a plurality of sub-frequency bands according to the array bandwidth; then, according to the aperture of the array, dividing the rectangular array surface into a plurality of symmetrical sub-regions, optimizing the arrangement of the array elements in a single sub-region, and obtaining the arrangement of the whole array by using the symmetry of the array surface; the array working bandwidth, the distance between array elements of different frequency bands and the array sidelobe level serve as optimization targets, the distance between the array elements in the sub-region is optimized through the CMA-ES algorithm, and the distance comprises the distance between the array elements of arrays of the same frequency band and the distance between the array elements of different frequency bands. On the premise of ensuring the working bandwidth of the array, the non-overlapping array eleme