论文标题
Terahertz Waves的波纹平面距离终止
A corrugated planar-Goubau-line termination for terahertz waves
论文作者
论文摘要
平面Goubau线是Terahertz互连的有希望的低损坏金属波导。为了启用基于平面Goubau线路的高级系统体系结构和多端口测量，非常需要宽带阻抗匹配的载荷，可用于吸收能量并最大程度地减少系统中的驻波。在这项工作中，我们提出了基于指数型的瓦楞线的平面Goubau线的匹配负载，在保持小反射的同时逐渐增加了导体损失。波纹密度足够高，可以增加导体损失，而无需辅助低导电材料，从而简化了制造过程。在空中悬挂的10- $ $ $ m厚的硅基板上制造了400- $ $ m $ m的长平面Goubau线负载。负载的电磁模拟显示出与频率范围0.5 THz -1.1 THz的校准反射测量值的极好一致。高于580 GHz约580 GHz的截止频率，测得的反射远小于-19 dB，在表征设置的噪声层下方。
The planar Goubau line is a promising low-loss metal waveguide for terahertz interconnects. To enable advanced system architectures and multi-port measurements based on planar Goubau lines, there is a strong need for broadband impedance-matched loads, which can be used to absorb the energy and minimize standing waves in a system. In this work, we propose a matched load for planar Goubau lines based on an exponentially-tapered corrugated line, gradually increasing conductor losses while maintaining small reflections. The corrugation density is high enough to increase conductor losses without requiring an auxiliary low-conductivity material, simplifying the fabrication process. A 400-$μ$m long planar Goubau line load was fabricated on a 10-$μ$m thick silicon substrate suspended in the air. Electromagnetic simulations of the load show excellent agreement with calibrated reflection measurements in the frequency range 0.5 THz - 1.1 THz. Above the cut-off frequency of around 580 GHz, the measured reflections are much less than -19 dB, below the noise floor of the characterization setup.
