摘要
提出了一种基于谐振频率的等效电路参数提取方法,该方法可以精确地描述多节复合左右手传输线结构,并通过仿真软件研究了其物理模型及等效电路模型的一致性,从而验证了这种新的参数提取方法。根据此种新的等效模型设计制作了复合左右手传输线型微带漏波天线,并利用网络分析仪对它的S参数进行了测量。结果表明,所设计的平衡状态下的微带漏波天线波束方向随着频率的变化而变化,并且改变传统漏波天线仅能实现前半空间扫描的局限性,并拓展漏波天线扫描范围至全空间,同时在各个波束方向上的能量也较为均匀,相比于传统漏波天线,尺寸缩小接近50%。
A new equivalent circuit model was established and a new parameter extraction method which could exactly describe the structure of composite right/left-handed transmission line with many nodes was put forward. The new method of parameter extraction was proved by using the simulation software to study the consistency of physical model and equivalent circuit model. The leaky-wave antenna object of composite right/left-handed transmission line was designed andmade referring to the new equivalent model. S parameters of the antenna were measured by the network analyzer. Results show, the beam direction of the microstrip leaky-wave antenna with right/left-handed transmission line can change with frequency change, the boundedness of traditional leaky-wave antenna only scan the first half of the space is changed and the scan scope expands to the whole space. Besides, the energy in each beam direction is more uniform. Its size decreases by about 50% compared with traditional leaky-wave antenna.
作者
熊鑫
余利华
戴亚文
吴延超
XIONG Xin;YU Lihua;DAI Yawen;WU Yanchao(College of Science, Wuhan University of Technology, Wuhan 430070, China)
出处
《电子元件与材料》
CAS
CSCD
2017年第1期62-67,共6页
Electronic Components And Materials
关键词
漏波天线
复合左右手传输线
等效电路
参数提取
波束扫描
辐射特性
leaky wave antenna
composite right/left-handed transmission line
equivalent circuit
parameter extraction
scanning beam
radiation characteristic
作者简介
熊鑫（1992－），男，湖北武汉人，研究生，研究方向为无线电物理，E-mail: 104721133@qq.com;通讯作者,戴亚文（1967－），男，湖北武汉人，教授，主要从事天线与电波传播、无线传感网络研究，E-mail: daiyaweny@163.com
