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首页> 外文会议>PIERS 2011 Suzhou;Progress in electromagnetics research symposium >Simulations and Analysis of the Corner Geometry and Its Influence on the Electromagnetic Behavior of Components and Structures: Comments on GTEM and Other Microwave Guided Structures Designs
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Simulations and Analysis of the Corner Geometry and Its Influence on the Electromagnetic Behavior of Components and Structures: Comments on GTEM and Other Microwave Guided Structures Designs

机译：角部几何形状及其对零件和结构电磁行为的影响的仿真分析：有关GTEM和其他微波导引结构设计的评论

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摘要

In this paper, it is shown the electromagnetic influence of the rounded corners which arises on the mechanical manufacturing process. Normally, microwave devices and resonant cavities are designed on the EM simulator with sharp corners. However, with this consideration, some response and behaviors are neglected. Concerning the differences between sharp and rounded corners, the investigation was carried out for a GTEM - Gigahertz Transverse Electromagnetic Chamber, specifically the APEX (the exciter sector) and a horn antenna. An EM simulator, based on the Finite Element method (FEM) was employed with very accurate models to identify the influence of the rounded corners on the propagation regime. To be sure that the simulation tool is doing a refined numerical solution, a close up of the meshing at the corner was verified. The simulated results show that the numerical analysis is compatible with the analytical solution for electrostatic fields presented in several works. Also, they show a non-negligible sensitivity of Sn parameter when comparison between sharp and rounded corners are done.
机译：在本文中，显示了圆角的电磁影响对机械制造过程的影响。通常，微波设备和谐振腔在EM仿真器上设计有尖角。但是，考虑到这一点，一些响应和行为被忽略了。关于尖角和圆角之间的差异，对GTEM-吉赫兹横向电磁腔室，特别是APEX（激励器扇区）和喇叭天线进行了研究。使用基于有限元方法（FEM）的EM仿真器和非常精确的模型来识别圆角对传播方式的影响。为确保仿真工具正在执行精确的数值解，对角落处的网格的闭合进行了验证。仿真结果表明，数值分析与多项工作中提出的静电场解析解是兼容的。同样，当完成尖角和圆角之间的比较时，它们显示出不可忽略的Sn参数灵敏度。

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