S波段锥形磁绝缘线振荡器粒子模拟和实验研究

 提出了一种由弱变锥形主工作区和强变锥形提取区组成的锥形磁绝缘线振荡器结构。该结构主工作区采用弱变结构，在保持频率基本不变的情况下，可有效增加群速度，利于微波提取。模拟结果表明：该结构可以在二极管电压500 kV、电流32 kA的条件下稳定输出平均功率2.5 GW、频率为2.65 GHz的微波；实验上也获得了GW级、频率为2.69 GHz的微波输出。

Particle simulation and experimental research of S-band tapered magnetically insulated transmission line oscillator

S-band tapered magnetically insulated transmission line oscillator designs using slowly tapered vanes and sharply tapered vanes were presented and analyzed. Simulation results show that: this structure can produce microwave at mean power of 2.5 GW and frequency of 2.65 GHz under the diode voltage of 500 kV;the structure improves the efficiency of beam-microwave conversion from 12% of a traditional tapered magnetically insulated transmission line oscillator to 15%. In the following experiments,average power of 1 GW has been obtained at frequency of 2.69 GHz which was in good agreement with the simulation.