开口共振器是电磁超材料的基本单元结构之一.本文应用基于微分进化策略和蚁群优化的混合算法,对在太赫兹频段下开口共振器的结构参数进行设计,以降低其回波损耗.数值模拟结果表明,在1.04 THz~1.16 THz内,优化后结构所得的回波损耗(|S11|)下降了50%,验证了本文优化设计方法的正确性和可行性,对太赫兹超材料的结构设计具有一定的参考意义.%The Split-Ring Resonator(SRR) is one basic structure of metamaterial. An hybrid optimization algorithm is employed to optimize the structure of a SRR for a lower return loss (|S11|) in the terahertz regime. Simulation results show that the return loss of the optimized structure is lowered by about 50%than that of the original structure in 1.04 THz–1.16 THz. This work may be useful to the design of the terahertz metamaterial structures.
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