四川大学学报（自然科学版）2024，Vol.61Issue(4)：214-224,11.DOI:10.19907/j.0490-6756.2024.043005
赋形反射面天线的约束多目标优化设计研究
Constrained multi-objective optimization design study of shaped reflector antenna
摘要
Abstract
The design of shaped reflector antennas typically employs single-objective optimization algorithms.However,when the desired beam characteristics involve multiple conflicting objectives and constraints,it be-comes challenging to guarantee the attainment of the optimal solution.To address this issue,a constrained multi-objective optimization approach is proposed for the design challenges associated with such antennas.The novel dual-population cooperative evolution constrained multi-objective optimization algorithm,DPBE,is designed by incorporating the principles of promising area optimization and adaptive constraint shift-based density estimation.The proposed algorithm demonstrates exceptional global optimization performance and sta-bility,as evidenced by comparative experiments on benchmark test suites.Specifically,the DPBE is applied to the flat-top beam shaping of a 19～21 GHz single-offset parabolic reflector antenna.The performance com-parisons were conducted using the single-objective optimization algorithm IWO and the multi-objective opti-mization algorithm NSGA-Ⅱ-DE,considering different optimization models for an identical initial antenna.The results demonstrate that the proposed method successfully fulfills all constraints and attains optimal out-comes in a single execution.关键词
赋形波束/反射面天线/约束多目标优化/协同进化/平顶波束Key words
Shaped beam/Reflector antenna/Constrained multi-objective optimization/Cooperative evolu-tion/Flat-top beam分类
信息技术与安全科学引用本文复制引用
杨承坤,王九灵,杨小凤,杨旋,郭庆功..赋形反射面天线的约束多目标优化设计研究[J].四川大学学报（自然科学版）,2024,61(4):214-224,11.基金项目
国家自然科学基金(62071316) （62071316）
