太赫兹波在嵌套环结构中的谐振特性  

The resonant characteristics in THz wave based on the nested loops structure

作　　者：聂影影[1] 袁纵横[1,2] 袁宇阳 董太良 

机构地区：[1]桂林电子科技大学电子工程与自动化学院,广西桂林541004 [2]贵州民族大学信息工程学院,贵阳550025

出　　处：《激光杂志》2017年第3期11-15,共5页Laser Journal

基　　金：广西自动检测技术与仪器重点实验室主任基金项目(YQ14102);桂林电子科技大学创新团队资助

摘　　要：结合两个方形封闭谐振环(CRR)嵌套双开口谐振环(SRR)形成新结构,并运用电磁仿真软件研究此结构在太赫兹波段的谐振特性。利用等效电路模型分析谐振峰产生机理;通过观察结构表面谐振电流分布,探究其各个谐振频点出现的原因;分析结构几何参数变化对谐振特性的影响和影响其极化特性的因素。研究表明,这种嵌套环结构分别在1.07THz,1.92THz,3.06THz具有较强的电磁谐振,在一定角度内具有极化不敏感特性。研究结果可为太赫兹波段滤波器,吸波体等器件的设计提供参考。The paper proposes a new structure based on two squares close resonance loop（ CRR） nested square split ring resonator（ SRR） with two cuts,and analyzes its resonant characteristics in the terahertz band using the electromagnetic simulation software. The resonance peak mechanism is analyzed by equivalent circuit model. By observing surface harmonic current distribution of the structure,exploring reasons of its individual resonant frequency points. The effect of the structure geometry parameters on the resonant characteristics and factors affecting its polarization properties are analyzed. The researches show that the kind of nested loop structure has strong electromagnetic resonance in1. 07 THz,1. 92 THz,3. 06 THz,and the structure has polarization insensitive properties within a certain angle. The results can provide a great reference value for the design of terahertz filter,absorber,etc.

关 键 词：太赫兹波 结构嵌套 等效电路模型 极化不敏感 谐振特性 

分 类 号：TN247[电子电信—物理电子学]