论文标题
由微带线喂养的拓扑定向耦合器，具有可配置的耦合系数
A Topological Directional Coupler Fed by Microstrip Line with Configurable Coupling Coefficient
论文作者
论文摘要
拓扑波导已被广泛研究其对缺陷的鲁棒传输特性及其对微波和Terahertz集成电路的应用潜力。在这项工作中，通过使用接地的平面谷 - 光子拓扑拓扑器，从理论上提出了一种高效拓扑定向耦合器，直接通过微带线与可构型耦合系数馈送的高效率方向耦合器是理论上提出的，并在实验上证明了。拓扑定向耦合器由两个耦合的拓扑波导组成，可以与微带电路直接集成。通过配置两个拓扑波导之间的耦合来实现不同的耦合系数。模拟和测量都证明了所提出的设计。此外，提出的设计适用于微波和Terahertz频段。
Topological waveguides have been extensively studied for their robust transmission properties immune to defects and their application potentials for microwave and terahertz integrated circuits. In this work, by using grounded planar valley-Hall photonic topological insulators, a high-efficiency topological directional coupler fed directly by microstrip line with configurable coupling coefficient is theoretically proposed and experimentally demonstrated. The topological directional coupler consists of two coupled topological waveguides, which can be directly integrated with microstrip circuits. Different coupling coefficients were achieved by configuring the coupling between the two topological waveguides. Both simulation and measurement demonstrated the proposed designs. In addition, the proposed design is applicable in both microwave and terahertz bands.
