Abstract

A new variant for construction of a exciter of the Н₀₁ mode of a circular metal waveguide using a smooth transition from a single-mode rectangular metal waveguide to a circular multimode waveguide is proposed and analyzed. Electrodynamic simulation and optimization of parameters of the transition are performed with the aid of the finite-element method and finite-difference method in the time domain. It is shown that the proposed device with a relatively small length provides low reflection loss and conversion to the other modes of the circular waveguide in a wider frequency band in comparison with alternative transducers.

中文翻译：

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圆形波导的 H 01 模式的超宽带退出器

摘要

提出并分析了使用从单模矩形金属波导到圆形多模波导的平滑过渡来构造圆形金属波导的Н ₀₁模式激励器的新变体。借助时域中的有限元方法和有限差分方法，对过渡参数进行电动力学模拟和优化。结果表明，与替代换能器相比，所提出的具有相对较小长度的装置在更宽的频带内提供低反射损耗和向圆形波导的其他模式的转换。