Using the mode matching technique, the passing phenomenon of electromagnetic waves from a semi-bounded cylindrical dielectric waveguide to a semi-bounded plasma waveguide have been studied. A thin dielectric layer is placed around the plasma waveguide. An electromagnetic wave in a single mode will be injected into the plasma waveguide from the filled dielectric waveguide. The interaction of the incident wave with interface surface, between two semi-bounded waveguides, will produce new modes for the transmitted waves. It will be shown that the transmission coefficients of the transmitted waves depend on several parameters such as the incident wave frequency, characteristic mode number of incident wave, the thickness of the dielectric layer around the plasma and the plasma electron frequency. To obtaining the transmission coefficients, an approximation solution is introduced and the diagrams of the transmission coefficients versus the incident wave frequency for some different geometric dimensions of the waveguides are investigated.

利用模式匹配技术，研究了电磁波从半界圆柱介质波导到半界等离子体波导的传播现象。薄电介质层放置在等离子波导周围。单模电磁波将从填充的电介质波导注入等离子波导。在两个半边界波导之间，入射波与界面的相互作用将为透射波产生新的模式。将显示出，透射波的透射系数取决于几个参数，例如入射波频率，入射波的特征模式数，等离子体周围的介电层的厚度以及等离子体电子频率。为了获得透射系数，