| 弯曲平板介质波导的辐射损耗研究 |
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| 引用本文： | 陈跃华,林为干. 弯曲平板介质波导的辐射损耗研究[J]. 电子科技大学学报(社会科学版), 1990, 0(6) |
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| 作者姓名： | 陈跃华 林为干 |
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| 作者单位： | 电子科技大学应用物理研究所(陈跃华)，电子科技大学应用物理研究所(林为干) |
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| 摘 要： | 从精确的弯曲平板波导的本地标量波方程出发,使用 WKB 漏模理论分析了波导中 TE 和TM 模的辐射损耗。这里考虑了介质波导由于弯曲而引起的传播常数的变化。本文的结果在一些有效的近似条件下,与目前现有的各种弯曲损耗公式相一致;而这些公式是采用完全不同的方法得到的。
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| 关 键 词： | 弯曲光波导 泄漏模 辐射损耗 平板介质波导 |
RADIATION LOSS ANALYSIS OF BENT STEP-INDEX SLAB WAVEGUIDES |
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| Cheng Yuehua,Lin Weigan. RADIATION LOSS ANALYSIS OF BENT STEP-INDEX SLAB WAVEGUIDES[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 1990, 0(6) |
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| Authors: | Cheng Yuehua Lin Weigan |
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| Affiliation: | Institute of Applied Physics |
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| Abstract: | Based on the exact scalar wave equations of bent slab waveguides,locally leaky-mode attenuation constants for both TE and TM modes are derived using theWKB tunneling leaky mode theory.Changes in propagation constants due to waveguidebending are considered in calculations.Under some assumptions,the results given inthe paper are identical to other previous results obtained using entirely different methods. |
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| Keywords: | bent waveguides WKB approximations radiation losses slab waveguides |
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