人工表面等离激元及其在微波频段的应用

Spoof Surface Plasmon Polariton and Its Applications to Microwave Frequencies

在微波频段采用超薄锯齿状金属条带可实现人工表面等离激元,将电磁场能量束缚在亚波长区域内传播。该文分析了人工表面等离激元特有的高束缚、低损耗、可调控等优点,研究了人工表面等离激元波导作为一种新型的高性能传输线在微波电路中的应用价值和发展现状,探讨了这一技术的发展方向和前景。

Spoof Surface Plasmon Polariton （SSPP）, which possesses extraordinary ability of sub-wavelength- scaled field confinement, can be realized by an ultrathin corrugated metallic strip at microwave frequencies. Advantages of SSPP such as the high confinement, low loss, and controllable dispersion properties are analyzed in this paper. SSPP waveguide, a novel high-performance transmission line, is studied for its great potentials in modern integrated circuits. A series of reported applications for microwave circuits/devices are reviewed. In the end, future development of this technique is discussed.