论文标题
带圆形导体的平面Goubau线的分析建模
Analytic Modelling of a Planar Goubau Line with Circular Conductor
论文作者
论文摘要
本文分析了表面波模式，该模式沿着简化的平面Goubau线传播，该线是由有限厚度但无限宽度的介电底物上的完美传导的圆形电线组成的。通过数值整合得出并求解传播常数的近似方程。计算传播常数对各种系统参数的依赖性，结果与完整的数值模拟良好。此外，据报道了纵向电场的空间分布，并与数值模拟和先前的研究非常吻合。此外，还报道了针对实验相速度测量值的验证。最后，从模型中获得的见解被考虑使用带矩形导体的Goubau线。这些结果介绍了朝着平面Goubau线的分析模型的第一步。
This paper analyses the surface wave mode propagating along a simplified planar Goubau line consisting of a perfectly conducting circular wire on top of a dielectric substrate of finite thickness but infinite width. An approximate equation for the propagation constant is derived and solved through numerical integration. The dependence of the propagation constant on various system parameters is calculated and the results agree well with full numerical simulations. In addition, the spatial distribution of the longitudinal electric field is reported and excellent agreement with the numerical simulation and previous studies is found. Moreover, validation against experimental phase velocity measurements is also reported. Finally, insights gained from the model are considered for a Goubau line with a rectangular conductor. These results present the first step towards an analytic model of the planar Goubau line.
