金属栅加载圆形介质波导传播特性的分析
ANALYSIS OF THE DISPERSION CHARACTERISTICS FOR A CYLINDRICAL DIELECTRIC WAVEGUIDE WITH PERIODIC METALLIC STRIPS
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摘要: 本文采用Galerkin方法分析了金属栅加载圆形介质波导在圆对称模激励时的传播特性。在推得了严格的色散方程之后,给出了TE模和TM模的色散曲线,以及禁带宽度、禁带中心频率和带内最大衰减随金属条带宽度变化曲线,并讨论了数值解的收敛特性。
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关键词:
- 圆形介质波导; 金属栅结构; 色散特性
Abstract: The dispersion characteristics of a cylindrical dielectric waveguide with periodic metallic strips are analyzed by Galerkin s method. After obtaining the rigorous dispersion equation, the dispersion curves for both TE and TM modes are calculateld. The variations of the width of the stropband, the center frequency and the maximum attenuation constant in the stop-band with the metallic strip width are given. The convergence properties of numerical solution are also discussed. -
S. T. Peng, Xu Shanjia, F. K. Schwering, Omni-Directional Dielectric Periodic Rod Antenna, 1986 IEEE-[2]APS Digest, USA, pp. 697-700.[3]Xu Shaniia, Min Jianhua, S. T. Peng, F. K. Shwering, IEEE Trans. on AP, AP-39(1991)7, 883-891.[4]Xu Shaniia, International Journal of Infrared and Milimeter Waves, 12(1989)5, 405-417.[5]K. Ogusu, IEEE Trans. on MTT, MTT-29(1981)1, 16-21.[6]L. Schmidt, T. Itoh, IEEE Trans. on MTT,MTT-28(1980)9, 981-985. -
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