论文部分内容阅读
对W波段回旋行波管的高频结构的设计参数进行了分析计算与软件仿真,通过色散关系确定了磁场取值,通过对返波振荡的分析确定了高频结构——周期衰减材料加载,通过对绝对不稳定性振荡的分析确定了工作电流和横纵速度比的取值范围,最终得到了W波段回旋行波管的工作参数。采用粒子模拟软件进行模拟计算,可以得到155k W的峰值功率输出和5.5GHz的带宽,并给出了输出功率与回旋行波管各工作参数之间的关系曲线,进一步证明了对返波振荡和绝对不稳定性振荡的分析与参数选取的合理性。实际加工的回旋行波管在测试中峰值功率大于100k W,增益大于40d B,效率大于12%,3d B带宽为4.1GHz。
The design parameters of the high frequency structure of the W-band gyro-TWT are analyzed and simulated and the software simulation is carried out. The value of the magnetic field is determined by the dispersion relation. By analyzing the back-wave oscillation, the high frequency structure- Through the analysis of the absolute instability oscillation, the range of working current and the ratio of horizontal to vertical velocity are determined, and finally the working parameters of the W-band gyrotron are obtained. Using the particle simulation software for simulation, the peak power output of 155kW and the bandwidth of 5.5GHz can be obtained, and the relationship between the output power and the working parameters of the gyrotron traveling wave tube is given. It is further proved that the backwave oscillation and Analysis of Absolute Instability Oscillation and Rationality of Parameter Selection. The actual processing of the traveling wave tube in the test peak power greater than 100k W, the gain is greater than 40d B, the efficiency is greater than 12%, 3dB bandwidth of 4.1GHz.