| 不均匀媒质填充矩形弯曲波导的研究(英文) |
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| 引用本文： | 程大军,赵愉深,林为干.不均匀媒质填充矩形弯曲波导的研究(英文)[J].电子科技大学学报(社会科学版),1993(2). |
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| 作者姓名： | 程大军 赵愉深 林为干 |
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| 作者单位： | 电子科技大学应用物理所，电子科技大学应用物理所，电子科技大学应用物理所 成都 610054，成都 610054，成都 610054 |
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| 摘 要： | 在圆柱坐标系中对径向不均匀媒质填充的矩形弯曲波导进行了研究。在截止频率上,波导中的电磁场可分解为E模和H模。利用摄动理论和低阶模近似,讨论了特征方程。研究表明,HE模和EH模在弱不均匀媒质和低阶模近似条件下是简并的。
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| 关 键 词： | 矩形波导 不均匀媒质 摄动理论 弯曲波导 低阶模近似 弱简并 |
ON THE CURVED RECTANGULAR WAVEGUIDE FILLED WITH INHOMOGENEOUS DIELECTRIC |
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| Cheng Dajun Zhao Yushen Lin Weigan.ON THE CURVED RECTANGULAR WAVEGUIDE FILLED WITH INHOMOGENEOUS DIELECTRIC[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1993(2). |
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| Authors: | Cheng Dajun Zhao Yushen Lin Weigan |
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| Abstract: | The curved rectangular waveguidc filled with inhomogeneous dielectric whose permittivity varies along the radial dimension is investigated in the circular cylindrical coordinate system. At cut-off frequency, EM fields can be deoomposed as the E-mode and H-mode. In the propagation state, using perturbation theory and low-order mode approximation, characteristic equations for propagation constants are prcsented. It is found that the HE mode and EH mode are weakly degcnerated with identical propagation constnts,for the weakly inhomogeneous dielectric and low-order mode approximation. |
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| Keywords: | rectangular curved waveguide inhomogeneous dielectric perturbation theory curved waveguide low-order mode approximation weakly degenerated |
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