类 ? 型同频率高功率微波功率合成器的设计

利用基于波导结构的功率合成器来合成高功率微波，是提高窄带高功率微波源输出能力的一个有效方式。本文 设计了一种特殊的类? 型高功率微波合成器，该合成器可以用来合成X 波段同一个频率下的两束高功率微波。文中给出 了该合成器的设计方法及仿真结果，并且将该合成器结构与新型同轴双电子束高功率微波源1]结合进行了粒子模拟，结果 表明，当加载的二极管电压为674kV，导引磁场为0.8T，内电子束电流为6.6kA，外电子束电流为14.3kA 时，该同轴双 电子束高功率微波源输出的两路微波经功率合成器合成以后输出了频率为9.74GHz，功率高达3.5GW 的微波。

Design of the Quasi ? -junction Power Combiner Combining the High Power Microwaves of the Same Frequency

Waveguide-based power combiner combining microwave beams is an effective approach for enhancing the output capacities of narrow-band high power microwave devices. A specific quasi ? -junction high power microwave combiner is designed for combining the X band microwave beams of the same frequency and the detailed design method and simulation results are presented. Furthermore, the proposed combiner is connected with the coaxial high power microwave source based on dual beams and simultaneously simulated by the Particle-in-cell (PIC) code KARAT. The results indicate that when the diode voltage is 730kV, the guiding magnetic field is 0.8T, the inner beam current is 7.4kA, the outer beam current is 15.6kA, a microwave with power of 4GW and frequency of 9.75GHz is generated after the two microwaves produced by coaxial high power microwave source based on dual beams are combined by the power combiner.