一种X型宽带复合左右手传输线的设计与分析

发布时间：2018-04-19 01:12

本文选题：复合左右手传输线 + 等效电路　；参考：《电波科学学报》2014年03期

【摘要】：为了实现宽带复合左右手传输线,提出并设计了一种反对称X型周期性左右手传输线结构.建立了结构的集总参数等效电路模型,并通过提取等效电路的元件值和S参数仿真,验证了传输线结构的谐振特性.采用参数反演算法对传输线结构的本构参数进行了提取和分析,证实了该结构具有1.6GHz的带宽,其中在10.08~10.9GHz呈现左手特性,在9.3~10.08GHz呈现右手特性,属于宽带左右手传输线结构.最后,应用印刷电路板技术制作了X型复合左右手传输线,并利用平板波导系统对其S参数进行了测试,实验测试结果和仿真结果吻合较好,证明了所设计的左右手传输线结构的有效性.为宽带左右手传输线结构的设计和分析提供了一种手段.
[Abstract]:In order to realize the broadband composite left-hand transmission line, an anti-symmetric X type periodic left-right hand transmission line structure is proposed and designed.The lumped parameter equivalent circuit model of the structure is established, and the resonant characteristics of the transmission line structure are verified by extracting the component value and S parameter of the equivalent circuit.The parameters inversion algorithm is used to extract and analyze the constitutive parameters of the transmission line structure. It is proved that the structure has the bandwidth of 1.6GHz, in which the left-handed characteristic in 10.08~10.9GHz and the right-hand characteristic in 9.3~10.08GHz belong to the wideband left-hand transmission line structure.Finally, the X type composite left-hand transmission line is fabricated by using printed circuit board technology, and its S parameters are tested by using the flat waveguide system. The experimental results agree well with the simulation results.The validity of the designed left-hand transmission line structure is proved.It provides a method for the design and analysis of the structure of the broadband left-right-hand transmission line.
【作者单位】：北京邮电大学电子工程学院;
【基金】：国家自然科学基金项目(No.61202399) 北京市自然科学基金项目(No.4112039)
【分类号】：TN811

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