| 半径突变多模圆锥馈源的分析和设计 |
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| 引用本文： | 李国庆,姚德淼.半径突变多模圆锥馈源的分析和设计[J].国防科技大学学报,1994,16(3):29-33. |
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| 作者姓名： | 李国庆 姚德淼 |
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| 作者单位： | 国防科技大学电子技术系 |
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| 摘 要： | 报道了一种８毫米波段半径突变的高效率多模圆锥馈源，计算出其模比并推导出其辐射方向图公式，给出了它在两个主平面－Ｅ面和Ｈ面上的辐射方向图的理论计算结果和测试结果，以及频带和旁瓣特性。分析和测试结果表明，在３４．１～３５．５ＧＨｚ频带内该多模馈源的辐射方向图在大于－２３ｄＢ范围内不出现旁瓣，在大于－１３ｄＢ范围内幅度等化良好。
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| 关 键 词： | 半径突变多模圆锥喇叭 高效率馈源 方向图 轴向对称 天线 模比 |
| 收稿时间： | 1993/11/24 0:00:00 |
Analysis and Design for the Multimode Conical Feedhorn with a Step of Radius |
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| Li Guoqing and Yao Demiao.Analysis and Design for the Multimode Conical Feedhorn with a Step of Radius[J].Journal of National University of Defense Technology,1994,16(3):29-33. |
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| Authors: | Li Guoqing and Yao Demiao |
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| Institution: | Department of Electronic Technology |
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| Abstract: | A 8mm wave multimode conical feedhorn with a step of radius has been developed.Lts mode ratios are calculated and the formulas of its radiation patterns in two principle planes-H plane and E plane,the voltage standing wave ratio(VSWE),and the properties of beamwidth and sidelobe are given.Theoretical analysis and measurements show that in the range of frequency of 34.1GHz to 35.5GHz,its radiation patterns have been equalized in amplitude within 13dB and no sidelobe exists within 23dB. |
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| Keywords: | ss:multimode conical feedhorn with a step of radius high efficiency feed pattern axial symmetry antenna mode-ratio |
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