具有类表面等离激元极化激元的平面传输线等效电路参数及其在高密度电路中的应用。
Equivalent circuit parameters of planar transmission lines with spoof surface plasmon polaritons and its application in high density circuits.
作者信息
Wu Chia Ho, Shen Linfang, Zhang Hang, Yan Jinhua, Hou Da Jun, Zhou Guobing, Wu Yu Lin
机构信息
Department of Applied Physics, Zhejiang University of Technology, Hangzhou, 310023, China.
Institute of Electro-Optical Science and Technology, National Taiwan Normal University, Taipei, 11677, Taiwan.
出版信息
Sci Rep. 2019 Dec 11;9(1):18853. doi: 10.1038/s41598-019-55200-z.
In this paper, the characteristics of a class of transmission lines which support spoof surface plasmon polaritons are investigated both numerically and experimentally. In order to provide the characteristic impedance of spoof surface plasmon polaritons for PCB designers, the equivalent circuit parameters of the microstrip line periodically structured on subwavelength scale are extracted with the numerical method. It is found that the equivalent circuit parameters significantly vary with frequency when the subwavelength periodic structure is introduced into the edge of the conventional microstrip line. The results of time-domain measurements show that spoof surface plasmon polaritons have remarkable advantage over conventional microstrip lines and can be directly used in actual high-speed circuits, which is helpful for eliminating the doubts whether the metamaterials can be directly used in actual circuits.
本文对一类支持类表面等离激元极化激元的传输线特性进行了数值和实验研究。为了给印刷电路板（PCB）设计者提供类表面等离激元极化激元的特性阻抗，采用数值方法提取了在亚波长尺度上周期性结构的微带线的等效电路参数。研究发现，当在传统微带线边缘引入亚波长周期结构时，等效电路参数随频率显著变化。时域测量结果表明，类表面等离激元极化激元相对于传统微带线具有显著优势，可直接应用于实际高速电路中，这有助于消除关于超材料能否直接应用于实际电路的疑虑。
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