| 引用本文: | 孙云飞,贺军涛,袁成卫,等.高功率微波径向线连续横向枝节阵列天线设计.[J].国防科技大学学报,2020,42(5):85-89.[点击复制] |
| SUN Yunfei,HE Juntao,YUAN Chengwei,et al.Design of radial line continuous transverse stub antenna for high-power microwave applications[J].Journal of National University of Defense Technology,2020,42(5):85-89[点击复制] |
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| 高功率微波径向线连续横向枝节阵列天线设计 |
| 孙云飞,贺军涛,袁成卫,张强,张泽海 |
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(国防科技大学 前沿交叉学科学院, 湖南 长沙 410073)
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| 摘要: |
| 为了实现Ku波段高功率微波的定向发射,研究并设计了新型高功率径向线连续横向枝节阵列天线。该天线采用圆极化同轴TE11模式进行馈电,经双层径向线波导传输后,通过连续横向枝节单元向外辐射。天线工作在驻波模式,相邻两圈缝隙的径向间距为一个波导波长,在上层径向线末端放置短路金属杆,金属杆表面到最内侧缝隙的径向间距为半个波导波长,整个天线具有较高的增益和功率容量。仿真研究了一个工作在14.25 GHz的天线,天线的高度为80 mm,半径为285 mm。仿真结果表明:该天线具有35.3 dBi的增益和47%的口径效率,反射系数小于-25 dB,辐射效率超过99.0%,同时具有吉瓦级的功率容量。 |
| 关键词: 连续横向枝节 径向线波导 高功率微波 Ku 波段 |
| DOI：10.11887/j.cn.202005013 |
| 投稿日期：2019-03-12 |
| 基金项目:国家自然科学基金资助项目(51706242) |
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| Design of radial line continuous transverse stub antenna for high-power microwave applications |
| SUN Yunfei, HE Juntao, YUAN Chengwei, ZHANG Qiang, ZHANG Zehai |
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(College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China)
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| Abstract: |
| In order to realize the directed radiating of Ku-band HPM (high-power microwave), a RL-CTSA (radial line continuous transverse stub antenna) was proposed. The antenna was fed by circularly polarized coaxial TE11 mode and radiated by a concentric CTS (continuous transverse stub) array after the wave propagation through a double-layered radial line waveguide. The interspace between adjacent stubs along radial direction was equal to one guide wavelength, a shorting pin was located at the end of the upper radial line waveguide and the space between the pin′s surface and the innermost CTS radiator′s center was half a guide wavelength. As a result, the HPM-RL-CTSA works on standing wave. An antenna prototype with a height of 80 mm and an aperture radius of 285 mm operating at 14.25 GHz has been designed, which has a gain of 35.3 dBi, reaching an aperture efficiency of 47%. The reflectance of this antenna is less than -25 dB and the radiation efficiency is more than 99.0%. The simulated results indicate that this antenna has a power handing capacity of more than 1 GW. |
| Keywords: continuous transverse stub radial line waveguide high-power microwave Ku-band |
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