| 通讯用K波段20W空间行波管设计 |
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| 作者姓名： | 刘明辉 瞿波 梁晓峰 冯进军 |
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| 作者单位： | 北京真空电子技术研究所,微波电真空器件国家重点实验室,北京100015 |
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| 摘 要： | 文章介绍了K波段20W空间行波管的设计和测试情况.该行波管整管采用金属陶瓷封接结构、周期永磁聚焦、传导冷却、四级降压收集极、B J220标准波导输入输出,其主要参数为输出功率24W、增益≥45dB、总效率≥53％、相移＜40°.
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| 关 键 词： | 空间行波管 Ka波段 通讯 |
The Design of K Band 20 W Space Travlling Wave Tabe for Communication |
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| Institution: | ZHANG Chao, LIU Bo ( China Academy of Space Technology ( Xi＇an), Xi＇an 710000, China) |
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| Abstract: | Physical mechanism of the scan blindness occurrence is analyzed in the grounded substrate and waveguide structures in this paper. The conditions satisfied of the scan blindness occurrence and how to locate it are elaborated. Up to now the following technologies have been proposed： 1 ） sub-array technology 2） cavities technology 3 ） DGS technology 4） EBG technology 5） electromagnetic meta-material technology. Merits and demerits of all above techniques have been summarized. |
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| Keywords: | Phased array Scan blindness Surface waves DGS EBG Electromagnetic super-material |
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