摘要
通过求解PIN二极管基区双极载流子扩散方程得到了限幅器Pspice等效电路模型,根据PIN二极管物理参数与温度的关系,数值计算得到了PIN二极管限幅器在多个温度点的功率响应特性,发现温度的升高会使限幅器内部损耗增加,加剧限幅器内部热损伤。并利用恒温控制系统进行了实验验证,实验结果与数值计算结果相符合。实验还发现高温热冲击可能使限幅器限幅能力大幅下降,可能成为通信系统的重大安全隐患。
According to the relationship between the parameters of PIN diode and temperature, power response characteristics of PIN diode limiter at different temperatures are simulated with a limiter circuit model which is based on the base area ambi-polar carrier transport equation of PIN diode in Pspice. The results show that the power loss in the limiter is increased when the temperature inereass. A temperature control system was employed in the experiment. The experimental results agree with the simulation results. After one thermal shock,it is observed that the limiting capacity of the limiter is weakened.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2008年第4期645-648,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金资助课题(60471045)
国家高技术发展计划项目
关键词
PIN二极管
微波限幅器
功率响应特性
温度
PIN diode
Microwave limiter
Power response characteristic
Temperature
