State-Space Analysis of General IMPATT Diode Small-Signal Lumped Models
State-Space Analysis of General IMPATT Diode Small-Signal Lumped Models
复制标题
通用 IMPATT 二极管小信号集总模型的状态空间分析
DOI:
10.1109/tmtt.1970.1127360
复制
发表时间:
1970
影响因子:
4.3
通讯作者:
H. R. Mitchell
中科院分区:
文献类型:
--
作者:
J. Stewart;D. Conn;H. R. Mitchell
The development of a lumped model for small-signal carrier-field interactions in an IMPATT diode results in a set of state equations. Using state-space analysis techniques, the equations are solved for the small-signal impedance of a general IMPATT diode as a function of dc bias current and frequency. Read, p-n, and p-i-n diodes are studied using realistic values for saturation carrier velocities and carrier-ionization rates. Curves indicating the influence of diode physical properties on the small-signal impedance are presented. By combining state equations describing the behavior of the external microwave circuit with the diode state equations, the small-signal oscillation frequency and threshold dc bias current of a coaxial IMPATT oscillator are determined.