CRLH结构微带天线的小型化设计研究

内容简介：运用分层媒质格林函数结合矩量法对复合左右手（Composite Right/left-handed CRLH）结构微带天线进行了准确的数值计算,由于CRLH结构在匹配性能上的不足,该结构天线在S参数性能上很难达到要求。该文提出利用量子遗传算法对CRLH结构微带天线的虚地结构进行了编程优化,大大改善了CRLH结构微带天线的S参数,对优化获得的小型微带天线进行加工制作,测试结果较为理想,并得出：改变虚地的形状、大小不仅可以优化天线的S参数,而且可以改变天线的第一谐振频率。从而为实现CRLH结构微带天线的宽频化、多频化提供了一定的理论支持。

Abstract：Some composite right/left-handed（CRLH） microstrip antennas are analyzed by MoM using Green＇s function of stratified media.Due to the imperfect matching condition,to overcome the deficiency in S-parameters of this kind of antenna is difficult.Quantum genetic algorithm is applied to optimize these antennas,and the improved S-parameters is obtained.One of optimized miniaturization microstrip antennas is fabricated and its performance is tested.The tested results are in good agreement with those obtained by theoretical analysis.The size and the shape of the virtual ground can affect not only the S-parameters but also the first resonant frequency.So,this research provides some theoretical guidance for extending the bandwidth and achieving multi-band CRLH microstrip antennas.

作者：关闯, 尹成友, 陈小舟, 宋超,

关键词：复合左右手, 微带天线, 量子遗传算法, 分层媒质格林函数, 小型化,