XUN Tao, SUN Xiao-liang, FAN Yu-wei, YANG Han-wu, ZHANG Zi-cheng, ZHANG Jun, ZHANG Jian-de, ZHONG Hui-huang. Progress in a Hard-Tube, Gigawatt-Class, Repetitively Operated High-Power Microwave Source[J]. Journal of University of Electronic Science and Technology of China, 2020, 49(1): 87-91. DOI: 10.12178/1001-0548.2018004
Citation: XUN Tao, SUN Xiao-liang, FAN Yu-wei, YANG Han-wu, ZHANG Zi-cheng, ZHANG Jun, ZHANG Jian-de, ZHONG Hui-huang. Progress in a Hard-Tube, Gigawatt-Class, Repetitively Operated High-Power Microwave Source[J]. Journal of University of Electronic Science and Technology of China, 2020, 49(1): 87-91. DOI: 10.12178/1001-0548.2018004

Progress in a Hard-Tube, Gigawatt-Class, Repetitively Operated High-Power Microwave Source

  • A compact L-band sealed-tube magnetically insulated transmission line oscillator (MILO) has been developed that does not require bulky external vacuum pump for repetitive operations. A special designed ceramic insulated vacuum interface was designed and the flashover was well controlled. A dynamic 3-D Monte-Carlo (MC) model for the molecular flow movement and collision was setup for the MILO chamber. The pulse desorption, gas evolution and pressure distribution were exactly simulated. In the 5 Hz repetition rate experiments, using a ~30 GW pulse modulator, the average radiated microwave power for 25 shots is about 3 GW in 40 ns pulse duration and the maximum equilibrium pressure is below 4.0×10−2 Pa. This sealed-tube MILO device is useful for compact and portable high-power microwave applications.
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