For the application of short millimeter wave active phased array,W band high efficiency RF system,low voltage e-lectron gun,1-D electron beam array planar focusing system and 4-channel planar integrated traveling wave tube(TWT)topology are optimized and designed in this paper.The effectiveness of the RF system design is verified by using the conventional PPM focu-sing system to make the tube.Two channel beamstick samples are designed and made,and the electron beam transport rate are higher than 85％,which verifies the effectiveness of the 1-D electron beam array planar focusing system.Based on the validated high efficiency RF system,low voltage electron gun and planar focusing system,the topological structure of 4-channel planar inte-grated TWT is designed,and the sample tube of W band 4-channel planar integrated TWT is developed,the test results show that the electron transport rate of the 4-channel TWTs is higher than 80％,the output power of the 4-channel TWTs is better than 10 W,the bandwidth is 6 GHz,and the gain is higher than 25 dB under the same working voltage,which has good electrical perform-ance consistency and provides a new solution for the application of short millimeter wave TWT active phased array.
关键词
W波段/平面集成行波管/一维阵列电子注/平面磁聚焦系统/电子注流通率
Key words
W band/planar integrated traveling wave tube/one-dimensional electron beam array/planar magnetic focusing system/beam transport rate
维普
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