| 矩形栅慢波系统的理论与实验研究 |
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| 引用本文： | 宫玉彬,徐如清,路志刚,魏彦玉,王冠军,王文祥.矩形栅慢波系统的理论与实验研究[J].电子科技大学学报(社会科学版),2006(3). |
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| 作者姓名： | 宫玉彬 徐如清 路志刚 魏彦玉 王冠军 王文祥 |
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| 作者单位： | 电子科技大学物理电子学院 成都610054(宫玉彬，路志刚，魏彦玉，王冠军，王文祥)，中国电子科技集团预研部 北京海淀区100846(徐如清) |
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| 基金项目： | 教育部新世纪优秀人才支持项目，国家重点实验室基金资助项目(51440020104DZ0202)，国家自然科学基金资助项目(60532010) |
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| 摘 要： | 为了克服单模近似法在分析矩形栅慢波系统高频特性时的局限性,采用了一种新的方法,即在表示槽区内的场时,保留其高次项,表为一无限本征驻波之和的形式,利用场匹配法得到其色散特性,进而求得耦合阻抗。然后针对矩形栅慢波系统进行了数值计算,并分析了金属栅的几何尺寸对系统高频特性的影响,以作为器件设计的参考。设计出3cm、8mm波段的矩形栅高频结构模型,进行实验测量,得到的实验值与理论值符合良好。
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| 关 键 词： | 矩形栅 色散关系 耦合阻抗 慢波系统 |
High Frequency Characteristics Analysis of Rectangular Waveguide Grating |
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| GONG Yu-bin,XU Ru-qing,LU Zhi-gang,WEI Yan-yu,WANG Guan-jun,WANG Wen-xiang.High Frequency Characteristics Analysis of Rectangular Waveguide Grating[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2006(3). |
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| Authors: | GONG Yu-bin XU Ru-qing LU Zhi-gang WEI Yan-yu WANG Guan-jun WANG Wen-xiang |
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| Institution: | GONG Yu-bin1,XU Ru-qing2,LU Zhi-gang1,WEI Yan-yu1,WANG Guan-jun1,WANG Wen-xiang1 |
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| Abstract: | In order to overcome the limit of Single-Mode Approximation (SMA), this paper adopts a new method that when expressing the fields inside the grooves, the higher orders are retained as an infinite sum of standing eigen-waves. The dispersion relation is obtained by field-matching method, while the coupling impedance is subsequently obtained from the relevant equations. A lot of numerical computations and analysis are done for rectangular grating slow-wave system. And the effects of the geometrical characteristics of the grating are analyzed. Finally, rectangular waveguide gratings at 3 cm band and 8 mm band are designed and measured, experimental values match theoretical values very well. |
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| Keywords: | rectangular grating dispersion relation coupling impedance slow-wave system |
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