给出了两种色散方程并研究了该波导各模式截止频率与芯区手征导纳的关系。
Two kinds of dispersion equations are given and the relation between the cutoff frequency and core chiral admittance is studied.
采用模匹配方法分析了月形波导和加片圆波导的截止频率。
The Lunar waveguides and vained circular waveguides are analyzed by using the mode matching method.
理论研究结果表明：对于同样等效直径的矩形谐振管，其截止频率远大于圆形谐振波导管的截止频率；
The results show that the cutoff frequency of the rectangular waveguide tube with the same equivalent radius is far greater than that of the cylindrical tube.
把矿井隧道看作波导，利用有限元法分析了隧道中的罐笼对电磁波截止频率的影响，并得到数值结果。
The effects of cage in mine tunnel on the cutoff frequency is analyzed by the finite-element method when the tunnel is regarded as a waveguide, and the numerical results are obtained.
文中通过所建立的本征方程对波导中各模式的截止频率进行了求解，数值结果与已有结果符合良好。
In this paper the cut-off frequencies of modes of waveguides are calculated via given eigenvalue equation. The results show good agreement with those from other sources.
本文用等效介电常数法计算了镜象波导各模式的归一化截止频率，给出了通用的模式图。
The normalized cut-off frequencies of Epqy and Epqx modes for image waveguide arc investigated by EDC method. A generalized mode chart for image waveguide is given.
本文用等效介电常数法计算了镜象波导各模式的归一化截止频率，给出了通用的模式图。
The normalized cut-off frequencies of Epqy and Epqx modes for image waveguide arc investigated by EDC method. A generalized mode chart for image waveguide is given.
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