论文部分内容阅读
研制了一种新型的混合式反同轴磁控管。其频率为3.2千兆赫、脉冲功率达千兆瓦,脉宽为30毫微秒。最初的测试就达到了0.5千兆瓦的脉冲功率和20%的效率。这种管型与普通反同轴磁控管不同,它的可调稳频腔在输出圆波导的外围。在稳频腔的外壁上有54个翼片,构成54个径向分布的阳极谐振腔。慢波系统与稳频腔之间的耦合隙缝迫使在电子互作用空间有π模振荡。选用这种结构后,使互作用空间可达到的功率流显著增加,同时高频真空击穿的可能性却减小了。由于在场致发射的阴极表面有了起动电路,提高了脉冲前沿的模式稳定性。
Developed a new type of hybrid anti-coaxial magnetron. It has a frequency of 3.2 GHz, a pulse power of up to 1000 MW and a pulse width of 30 ns. The initial test achieved 0.5 gigawatts of pulse power and 20% efficiency. This tube type and ordinary anti-coaxial magnetron different, its adjustable frequency-stabilized cavity in the output of circular waveguide periphery. There are 54 fins on the outer wall of the frequency-stabilized cavity, forming 54 radially distributed anode resonators. The coupling gap between the slow-wave system and the frequency-stabilized cavity forces π-mode oscillation in the electronic interaction space. With this structure, the power flow achievable in the interaction space is significantly increased, while the probability of high-frequency vacuum breakdown is reduced. Since there is a start-up circuit on the field emission cathode surface, the mode stability of the pulse front is improved.