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该文使用两种全波分析法对传统的带阻滤波器和一维复合左右手传输线(Composite Right/left-handed Transmission Line CRLH-TL)进行了数值分析,解决了多端口激励源的设置和多端口S参数提取的两大难点,计算结果分别与FEKO和电路模型等效法的分析结论进行了比较,吻合较好;并通过增加CRLH单元数得出电路模型等效法的不足,不仅验证了此激励源设置和S参数提取的正确性,也得出了CRLH-TL不同于传统右手传输线的一些左手特性,为分析、优化CRLH传输线以及CRLH漏波天线提供了一定的理论支持。
In this paper, two kinds of full-wave analysis methods are used to analyze the traditional band-stop filter and one-dimensional Composite Right / Left-handed Transmission Line (CRLH-TL) Port S parameter extraction of the two major difficulties, the calculation results were respectively FEKO and circuit model equivalent analysis of the conclusions were compared, the agreement is good; and by increasing the number of CRLH circuit circuit model obtained the equivalent of inadequate, not only validated the incentive Source setting and S parameter extraction. Some conclusions are drawn that the CRLH-TL has some left-handed characteristics that are different from the traditional right-handed transmission line, and provides some theoretical support for the analysis and optimization of the CRLH transmission line and the CRLH leaky-wave antenna.