矩形波導(dǎo)中沿E面均勻的介質(zhì)柱散射特性分析
SCATTERING ANALYSIS OF E-PLANE UNIFORM DIELECTRIC POSTS IN RECTANGULAR WAVEGUIDES
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摘要: 從關(guān)于介質(zhì)極化電流的積分方程出發(fā),用矩量法數(shù)值分析了矩形波導(dǎo)中沿E面均勻的任意截面形狀和數(shù)量的介質(zhì)柱的散射特性。將介質(zhì)區(qū)域分割成許多矩形小子域,使以矩形波導(dǎo)修正格林函數(shù)為核的積分方程能夠分區(qū)地進(jìn)行解析處理,從而大大改善了計(jì)算精度和速度。計(jì)算中考慮了高次模的影響,既提高了計(jì)算精度,又提供了所有波型的散射信息。
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關(guān)鍵詞:
- 矩形波導(dǎo); 均勻介質(zhì)柱散射; 極化電流積分方程; 格林函數(shù)
Abstract: Based on the polarization current integral equation with the modified Green s function as kernel, the scattering properties of the E-plane uniform dielectric posts in rectangular waveguides are numerically analyzed by moment method. These posts are of arbitrary in cross-stction and post-number. The calculation accuracy and speed are remarkably improved by segmentating the dielectric region into many small rectangular cells and applying local analytic integration. The higher-order modes are considered in calculation. It improves the computation accuracy and can provide the scattering information of all excited modes. -
J.Schwinger, Discontinuities in Waveguide-Notes on Lecture, New York, Gordon and Breach, 1969.[2]N.Marcuvitz, Waveguide Handbook, New York, McGraw-Hill, 1951.[3]Y.Levitan, P. G. Li, A. T. Perini, IEEE Trans, on MTT, MTT-31(1983), 806-812.[4]H.Auda, R. F. Harrington, IEEE Trans. on MTT, MTT-32(1984), 606-613.[5]J.N. Sahalos, E. Vafidis, IEEE Trans. on MTT, MTT-33(1985), 1165-1171.[6]G.Hsu, A. Auda, IEEE Trans. on MTT, MTT-34(1986), 883-891.[7]C.Araneta, IEEE Trans. on MTT, MTT-32(1984), 1328-1335. -
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