高功率微波器件的初步优化设计

将遗传算法与全电磁粒子模拟算法有机融合，研制出二维全电磁粒子模拟并行优化程序。据此对高功率微波源器件——磁绝缘线振荡器（MILO）和超辐射返波管（SRBWO）进行优化设计。将束波转换效率作为优化目标，在输入功率基本不变的情况下，优化后的磁绝缘线振荡器的效率比原模型提高38．8％；将超辐射相对论返波管的峰值输出功率作为优化目标，优化后的器件峰值输出功率比原来提高了37．5％，束波转化效率提高了50％；将超辐射相对论返波管的输出微波总能量作为优化目标，输出微波总能量比原来提高了38．1％。经优化后获取的器件模型几何参数合理，物理图像正确。

Preliminary optimization design of High Power Microwave sources

A paralleled 2-dimensional optimization code is developed by combining the Genetic Algorithm with Particle-In-Cell（PIC） code in order to improve the design of High Power Microwave（HPM） sources. Two HPM sources--Magnetically Insulated Transmission Line Oscillator（MILO） and Superradiance Relativistic Backward Wave Oscillator（SRBWO）--are optimized by using this optimization code. While the beam-wave conversion efficiency is set as optimization goal, the efficiency of optimized MILO is higher than original one by 38.8% with almost the same input power; while the peak output power is set as optimization goal, the peak output power of SRBWO has increased by 37.5% and the beam-wave conversion efficiency has increased by 50%; while the total energy of output wave is the optimization goal, the total energy of output wave of SRBWO has increased by 35.1%. All optimized models obtain reasonable geometry parameters and exact simulating spectra.