一种分析异向介质中导线阵列宏观效应的新方法  

A New Approach to the Analysis of Macro Effect of the Wires Array in Metameterial

作　　者：吴群[1] 孟繁义[1] 武明峰[1] 李乐伟[1] 

机构地区：[1]哈尔滨工业大学电子与信息技术研究院,黑龙江哈尔滨150001

出　　处：《电子学报》2007年第8期1472-1475,共4页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60571026)

摘　　要：本文根据异向介质中细导线阵列的电磁效应,利用均匀介质与均匀传输线的等效关系,建立起电磁波在导线阵列中传播时的等效电路,以此为依据从宏观上推导出异向介质中非均匀导线阵列的有效介电常数模型,在呈现出非常清晰的物理图景的同时,为人们从宏观物理学的角度理解导线阵列的等效负介电常数效应、从实质上揭示异向介质的构成理论向前跨进了一步.数值仿真结果表明,该模型具有足够的精度.本文所得到的结论对理解异向介质的构成提供了更加清晰的描述方法,为异向介质在微波电路领域的应用提供了一套分析方法.According to the response of the thin wire array to the incident electromagnetic wave and the equivalence relation of uniform medium and uniform transmission line, the equivalent circuit for the thin wire army of metameterial is presented while a plane wave is propagating through it. The effective permittivity model of the asymmetric wire array is derived based on the circuit theory. And the validity of the model is proven by the numerical simulation. The description of theoretical derivation exhibits clear physical concepts and provides a new approach to understand the minus permittivity effect of the thin wires army from the macro- physics.

关 键 词：异向介质 等效电路 导线阵列 

分 类 号：TM15[电气工程—电工理论与新技术]