| 柔性人工表面等离激元传输线的小型化设计 |
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| 引用本文： | 王霞,李雅楠,李艳禄,罗海鹏,管政涛,马玉凤,魏豪毅,王蒙军.柔性人工表面等离激元传输线的小型化设计[J].电波科学学报,2022,37(5):793-801. |
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| 作者姓名： | 王霞 李雅楠 李艳禄 罗海鹏 管政涛 马玉凤 魏豪毅 王蒙军 |
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| 作者单位： | 1.河北工业大学电子信息工程学院, 天津 300401 |
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| 基金项目： | 国家自然科学基金面上项目(62071166)；秦皇岛市科技研发项目（202003B004） |
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| 摘 要： | 为了实现高集成度通信系统中高频信号的可靠传输，提出了一种小型化叉指H形人工表面等离激元传输线结构. 采用共面双导体形式，并在金属矩形凹槽处添加叉指结构，实现色散特性调控和尺寸缩减. 同时给出单元结构的等效电路模型，验证了小型化结构的设计原理，分析了力学形变时传输线的性能. 仿真与测试结果表明，与常规的人工表面等离激元相比，叉指H形人工表面等离激元传输线可在保持相同带宽（3～15.25 GHz）的同时，线宽减少79.5%，尺寸仅为2.28λg×0.098λg（λg为中心频率对应的波长）. 在平坦和变形时加工实物的带宽保持在3～12.90 GHz，与仿真结果较吻合. 设计的结构具有高频、小型化和柔性超薄等特点，在超小型高速通信系统中具有潜在的应用前景.
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| 关 键 词： | 人工表面等离激元 小型化 柔性传输线 色散特性 等效电路模型 |
| 收稿时间： | 2021-08-11 |
Design of miniaturized flexible spoof surface plasmon polaritons transmission line |
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| Affiliation: | 1.School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China2.Hongqisheng Precision Electronics (Qinhuangdao) Co., Ltd., Qinhuangdao 066300, China3.State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300401, China |
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| Abstract: | A miniaturized interdigital H-shaped spoof surface plasmon polaritons (SSPP) transmission line structure is proposed to reliably realize high-frequency signal transmission in a highly integrated communication system. Coplanar double conductor structure is designed, and the interdigital structures are designed at metal rectangular groove to achieve the regulation of dispersion characteristics and size reduction. Meanwhile the equivalent circuit model is deduced to verify the miniaturization design principle, and the performance of transmission line under mechanical deformation is analyzed. The simulated and measured results indicate that compared with conventional SSPP, the interdigital H-shaped SSPP transmission line can obtains the same bandwidth from 3 GHz to 15.25 GHz, while it features a line-width reduction up to 79.5% and the size is only 2.28λg×0.098λg (λg is the wavelength of the center frequency). The bandwidth of the fabricated line remains about 3?12.90 GHz under flat and deformed states. The measured results are in good agreement with the simulation results. The structure is characterized by high frequency, miniaturization and ultra-thin flexibility, which has potential application prospects in ultra small and high-speed communication system. |
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