远红外FEL微波源调制器De-Qing稳幅电路设计  

The Design of De-Qing Amplitude Regulation Circuits for the Microwave Source of the Far Infrared FEL

作　　者：程云[1] 都兴绍[1] 沈旭明[1] 刘婕[1] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900

出　　处：《信息与电子工程》2003年第2期58-60,共3页information and electronic engineering

基　　金：国家863计划项目资助课题(863-802-603-2)

摘　　要：远红外自由电子激光(FEL)对微波源的幅度稳定度有特殊要求,因此,选用有突出优点的阻容振荡型[(De)22.7(-)]Qing电路作为微波源的脉间稳幅控制线路。电路设计采用新的设计路线,首先引入电压调整深度概念,用归一化设计,分析推导出与稳幅精度有关的各种因素和相互关系,然后以稳幅精度0.2%为条件求出电路各参数的限制范围,最后通过实验确定各元件参数的标称值。最终实现了微波源高压脉冲幅度稳定精度0.15%,满足了远红外自由电子激光实验需求。The far infrared FEL requires a microwave source with extremely high pulse amplitude stability. So a resistance-capacity oscillation De-Qing circuit is chosen as the control circuit to stabilize the regulation amplitude of high-voltage pulses of microwave source. All the parameters related to the amplitude regulation accuracy and the relationships among them are deduced based on theory analysis. As a result, it is successful in controlling the amplitude regulation accuracy of the microwave sources high voltage to 0.15%, which satisfies the requirement of far infrared FEL experiment.

关 键 词：远红外自由电子激光 FEL 微波源 幅度稳定度 De-Qing电路 调制器 调整深度 

分 类 号：TN761[电子电信—电路与系统]