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给出了一种改进的量子遗传算法(IQGA),克服了其易陷入局部极值的缺点,再将其与基于矩量法的体面积分方程和最佳一致逼近结合,加速了超宽带天线的特性分析,设计优化了一副采用微带线馈电的超宽带陷波天线。该天线在3.1～10.6GHz频带范围内反射系数低于-10dB,而在5.8GHz的窄带范围内具有反射系数高于-10dB的陷波特性。最后制作出了该副天线,优化结果与实测结果的比较反映了该方法的正确和有效性。
An improved quantum genetic algorithm (IQGA) is proposed to overcome its shortcomings of being trapped in local extremums and then to be combined with the body-surface integral equation and the best consistent approximation based on the moment method to accelerate the propagation of ultra-wideband antennas Characteristic analysis, design and optimization of an ultra-wideband notch antenna using microstrip line feed. The antenna has a reflection coefficient below -10 dB in the 3.1-10.6 GHz band and a notch characteristic with a reflection coefficient above -10 dB in the 5.8 GHz narrow band. Finally, the secondary antenna was fabricated. The comparison between the optimized result and the measured result shows that the method is correct and effective.