An integrated optimization of sum and difference beam for time-modulated linear antenna array is studied in this paper. The goal of sum and difference beam synthesis is to generate sum beam in the main band and difference beams in the first-order sideband with low side-lobe level through timing switches. The turn-on times of antenna array are achieved by solving a quadratic constraint linear programming; meanwhile, the opening times are optimized by particle swarm optimization algorithm. The results of linear array show that the sum and difference beam can be scanned within degrees, with lower peak side-lobe level.

中文翻译：

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PSO-CVX算法用于调时天线阵列的总和和不同波束方向图

研究了时间调制线性天线阵列总和与差波束的集成优化。求和和差分波束合成的目的是通过定时开关在主频带中生成和波束，并在旁瓣电平较低的一阶边带中生成差分波束。天线阵列的开启时间是通过求解二次约束线性规划来实现的。同时，利用粒子群算法对开放时间进行了优化。线性阵列的结果表明，总和和差波束可以在一定程度上进行扫描，并且具有较低的峰值旁瓣电平。