L波段硬管磁绝缘线振荡器的研制
L-band hard-tube magnetically insulated line oscillator
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摘要: 对L波段磁绝缘线振荡器(MILO)的二极管进行了研究,优化了器件的设计,以及辐射天线一体化的设计,研制出了L波段硬管 MILO。硬管MILO的实验结果是:在电压为450 kV、电流为35 kA的条件下,L波段硬管 MILO的输出微波频率为1.22 GHz,功率大于1.5 GW,微波脉宽半高宽约20 ns,功率效率约10%;硬管MILO的保真空时间超过了5 h。Abstract: According to the requirement of hard-tube magnetically insulated line oscillator(MILO), the diode of MILO is investigated. It has an insulator made of porcelain with ring slot and its shelter is improved. The length of the diode is shortened. With the improved diode, the device of MILO is optimized. In order to condense the apparatus, the integrity of the radiation antenna and microwave mode converter is also optimized. The experimental results are given: employing an electron beam of about 450 kV and 35 kA, L-band hard-tube MILO generates over 1.5 GW high power microwave with over 20 ns pulse duration at 1.22 GHz, the power efficiency is about 10%.
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Key words:
- magnetically insulated line oscillator /
- high power microwave /
- hard-tube /
- l-band
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