利用传输线模型的载流子倍增寄存器的频率特性研究  

Frequency characteristic study of charge carrier multiplier based on transmission line model

作　　者：何伟基[1] 陈钱[1] 顾国华[1] 张闻文[1] 

机构地区：[1]南京理工大学电子信息工程与光电技术学院,江苏南京210094

出　　处：《红外与激光工程》2011年第2期214-219,共6页Infrared and Laser Engineering

基　　金：国防基础科研项目(A2620060242);武器装备预先研究项目(4040508011);江苏省自然科学基金资助项目(BK2008049);"光电成像技术与系统"教育部重点实验室开放基金资助项目(2010OEIOF14)

摘　　要：介绍了一种电荷载流子倍增寄存器(CCM)电极间隙的传输线模型,通过求解其波动方程得到了电荷载流子倍增寄存器电极间隙的电势分布及电场分布。模拟分析表明:电荷载流子倍增寄存器电极间隙的电势分布是与电荷载流子倍增寄存器工作频率相关的函数。电势分布沿信号电荷密度流方向衰减且电荷载流子倍增寄存器工作频率越高,电势衰减越快。电荷载流子倍增寄存器工作频率趋于零时,电场强度分布均匀。随着工作频率增加,电场分布呈现非均匀分布。频率越高,电场强度的峰值越大,沿信号电荷密度流方向衰减越明显。因此,电荷载流子倍增寄存器工作频率越高,其电荷倍增因子越小。A transmission line model for charge carrier multiplier （CCM） inter-electrode gaps was proposed. The potential distribution and the electric field distribution between the gaps were obtained from the solution of voltage wave equation. The potential distribution between the gaps is shown to be dependent on the CCM frequency. It is attenuated along the direction of charge density. The higher the CCM frequency is, the sooner the potential attenuation is. The electric field distribution is uniform when the frequency is approaching to zero. As the CCM frequency increases, the electric field distribution turns to be non-uniform. The higher the frequency is, the greater the electric field peak is and the more obvious the attenuation of peak along the direction of charge density is. It means that the higher the frequency of CCM is, the smaller the charge multiplication factor is.

关 键 词：电荷倍增寄存器 传输线模型 电场分布 电荷倍增因子 

分 类 号：TN223[电子电信—物理电子学]