Electronic Engineering Department, State Key Laboratory of Millimeter Waves, City University of Hong Kong, Kowloon Tong, Hong Kong.
Beijing Key Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications, Beijing, 100876, China.
Sci Rep. 2017 Aug 14;7(1):8013. doi: 10.1038/s41598-017-07799-0.
In this paper, a new spoof surface plasmon polaritons (SPPs) based transmission line (TL) with semi-open structure is proposed, which is implemented on a single-layer substrate with metallized via holes planted on a ground plane. The electromagnetic (EM) power propagates along it in the form of controlled slow surface wave, which is the same with its existing counterparts. The proposed TL can adjust the degree of EM energy confinement, and thus balance its performance in every characteristic, in particular attenuation and interference. As the TL is semi-open (i.e., EM energy distributes in the half space above the ground plane), it is less vulnerable to the nearby interference compared with its former counterparts, which are fully-open structure (i.e., EM energy distributes in the full space). Prototypes working at Ka band are fabricated and measured. Bianco-Parodi (BP) method is used to derive the attenuation of the proposed TL from the measured S-parameters. The proposed structure can be easily scaled for THz applications, which opens the door for future high performance THz components and systems.
本文提出了一种基于新型仿表面等离子体激元（SPPs）的具有半开放式结构的传输线（TL），该结构在金属化通孔种植于接地面的单层衬底上实现。电磁（EM）功率以可控慢表面波的形式沿其传播，这与现有的传输线相同。所提出的 TL 可以调整 EM 能量束缚程度，从而平衡其在每个特性（尤其是衰减和干扰）中的性能。由于 TL 是半开放式的（即，EM 能量分布在接地面上方的半空间中），与完全开放式结构的传输线（即，EM 能量分布在整个空间中）相比，它不易受到附近干扰的影响。工作在 Ka 波段的原型已被制造和测量。Bianco-Parodi（BP）方法用于从测量的 S 参数推导出所提出 TL 的衰减。该结构可以轻松扩展到太赫兹应用，为未来高性能太赫兹组件和系统打开了大门。
