The guided waveguide structures based on surface plasmons can be used to miniaturize microwave devices. By simply introducing a series of periodic truncation slits in the SSPP (spoof surface plasmon polariton) waveguide, three frequency regions, namely radiating spatial wave region, guiding SSPP mode region, and the cut-off region, are formed. In the frequency region of radiation, the SSPP mode can be transitioned to spatial wave. Consequently, double-port leaky wave antenna based on SSPP waveguide is realized with beam sweep function. Furthermore, a single-port antenna is demonstrated by symmetrical halving of the dual-port antenna. The half-sized single-port antenna exhibits beam steering capability and improved directivity. The proposed SSPP leakage antenna can be applied to the fifth-generation (5G) mobile communication systems.

中文翻译：

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基于周期性截断SSPP波导的漏波天线

基于表面等离子体激元的导引波导结构可用于使微波设备小型化。通过在SSPP（欺骗表面等离激元极化）波导中简单地引入一系列周期性的切缝，就形成了三个频率区域，即辐射空间波区域，引导SSPP模式区域和截止区域。在辐射的频率范围内，SSPP模式可以转换为空间波。因此，实现了具有波束扫描功能的基于SSPP波导的双端口漏波天线。此外，通过双端口天线的对称减半来演示单端口天线。半尺寸的单端口天线具有波束控制能力和改进的方向性。提出的SSPP泄漏天线可以应用于第五代（5G）移动通信系统。