| FDTD法计算波导截止频率时激励源的优化设计 |
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| 引用本文： | 崔芙蓉 季飞. FDTD法计算波导截止频率时激励源的优化设计[J]. 华南理工大学学报(自然科学版), 2000, 28(9): 40-44 |
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| 作者姓名： | 崔芙蓉 季飞 |
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| 作者单位： | 华南理工大学电子与通信工程系,广东广州 |
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| 基金项目： | 国家自然科学基金资助项目!(6 9172 0 0 9)，广东省自然科学基金资助项目!(950 16 9) |
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| 摘 要： | 分析了利用时域有限差分法结合傅立叶变换计算波导截止频率时激励源的设计方法，讨论了面源、线源、点源等不同空间分布的激励源对截止频率的影响，并提出了一种激励源的优化设计方法。该方法也适用于多连接波导截止频率的计算。
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| 关 键 词： | FDTD法 激励源 截止频率 波导 优化设计 DFT |
Optimization Design of Excitation Sources in Computing Cut-off Frequency of Waveguides by FDTD Method |
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| CUI Fu_rong,Ji fei,HU Bing_jie,LAI Sheng_li. Optimization Design of Excitation Sources in Computing Cut-off Frequency of Waveguides by FDTD Method[J]. Journal of South China University of Technology(Natural Science Edition), 2000, 28(9): 40-44 |
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| Authors: | CUI Fu_rong Ji fei HU Bing_jie LAI Sheng_li |
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| Abstract: | This paper deals with the design of excitation sources in computing the cut_off frequency of waveguides by FDTD method combined with Fourier transformation, discusses the effects of sheet sources, filament sources and point sources on the cut_off frequency. An optimized method to design excitation sources is proposed which can also be used to computing cut_off frequency of multi_connected waveguides. |
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| Keywords: | FDTD method excitation source cut-off frequency |
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