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基于全波分析法、改进的阻抗倒置器模型和自适应微种群遗传算法,提出了一种设计波导带通滤波器的快速精确方法。该方法通过结合改进的阻抗倒置器模型和全波分析法,能够在设计带通滤波器,特别是带宽较宽的情况下获得较为精确的初值。在此基础上,通过采用自适应的微种群遗传算法对初值进行优化。该方法能在保证数值精确性的基础上,以较小的群体规模和较少的遗传代数获得比其他优化方法更好的回波损耗以及通带微调功能;在多优化变量的波导带通滤波器问题上,提出的混合方法优于传统的优化设计方法或其他遗传算法。
Based on full wave analysis, improved impedance inverter model and adaptive micro-population genetic algorithm, a fast and accurate method of designing waveguide band-pass filter is proposed. By combining the improved impedance inverter model with full-wave analysis, this method can obtain a more accurate initial value when designing a band-pass filter, especially in the case of wide bandwidth. On this basis, the initial value is optimized by using adaptive micro-population genetic algorithm. This method can obtain better return loss and passband fine tuning function than other optimization methods with smaller group size and less genetic algebra, while ensuring the numerical accuracy. In the multi-optimization variable waveguide band-pass filtering The proposed hybrid method outperforms the traditional optimization methods or other genetic algorithms.