CAJ | 학술논문

设计了一个紧凑型L波段相对论返波振荡器 (RBWO),利用Karat 2.5维全电磁粒子模拟程序研究了器件内部束-波作用的物理过程.模拟结果表明:在二极管电压700 kV、电子束流10 kA、导引磁场为1 0 T时,能实现L波段2.23 GW高功率微波输出,平均效率约为31.8%.为验证模拟结果,在高阻加速器平台上进行了初步实验:当二极管电压为703 kV、电流10.6 kA、导引磁场为0.8 T时,实验获得了峰值功率1 05 GW、频率1.61 GHz、脉宽38 ns的高功率微波输出,其功率效率为14.4%.
설계료일개긴주형L파단상대론반파진탕기 (RBWO),이용Karat 2.5유전전자입자모의정서연구료기건내부속-파작용적물리과정.모의결과표명:재이겁관전압700 kV、전자속류10 kA、도인자장위1 0 T시,능실현L파단2.23 GW고공솔미파수출,평균효솔약위31.8%.위험증모의결과,재고조가속기평태상진행료초보실험:당이겁관전압위703 kV、전류10.6 kA、도인자장위0.8 T시,실험획득료봉치공솔1 05 GW、빈솔1.61 GHz、맥관38 ns적고공솔미파수출,기공솔효솔위14.4%.
A compact L-band relativistic backward wave oscillator(RBWO) is investigated with simulation and experimental method. In simulation, the L-band coaxial RBWO, driven by a 700 kV, 10 kA electron beam, comes to a nonlinear steady state in 20 ns. High-power microwave(HPM) is generated with an average power of 2.23 GW, a frequency of 1.60 GHz, and power conversion efficiency of 31.8%. In the primary experiment, the measured microwave frequency is 1.61 GHz, with a peak power level of above 1.05 GW, when the diode voltage is 703 kV and the current is 10.6 kA. The pulse duration (full-width at half-maximum) of the radiated microwave is 38 ns.