混合SIW-SSPP传输结构研究与应用

人工表面等离子体激元（SSPP）是光波段中表面等离子体激元在低频段的一个重要拓展，近些年引起了国内外学者的广泛关注。但是目前人工表面等离子体激元的研究和设计主要局限于金属结构或微带、带状线等传统平面结构。基片集成波导（SIW）具有与矩形金属波导类似的传播特性又可以在平面PCB板上实现，具有低损耗、低辐射、低干扰等优点，是一种性能优异的平面导波结构。本项目提出将基片集成波导和人工表面等离子体激元集成设计这一思想。拟开展混合SIW-SSPP传输线研究及应用，建立SIW-SSPP周期单元结构模型，研究混合SIW-SSPP导波结构传输理论，设计新型SIW-SSPP滤波器及天线，为新型传输结构的探索提供新技术。

Spoof surface plasmon polariton (SSPP) is an important derivative of surface plasmon polariton from optical frequencies to lower frequencies, which has attracted extensive attention of scholars at home and abroad in recent years. However, the research and design of SSPP is limited in three-dimensional (3-D) metallic structure or traditional planar transmission structures such as microstrip line and strip line so far. Substrate integrated waveguide (SIW) is an excellent planar guided wave structure, which has the similar transmission characteristic of metallic waveguide as well as can be designed on the printed circuit board (PCB). It has the advantages of low loss, low radiation, and low interference. Therefore, the idea of integrating SSPP and SIW is proposed in this project. We plan to develop some research and application on hybrid SIW-SSPP transmission line, such as constructing models of SIW-SSPP periodical unit, studying transmission theory of hybrid SIW-SSPP guided wave structure, and designing novel SIW-SSPP filters and antennas. Finally, it is our hopes to contribute new techniques for the exploration of novel transmission structures.