The effect of cathode-notch doping profiles on supercritical transferred-electron amplifiers

The results of computer simulations are presented to describe the stabilization and amplification performance of supercritically doped transferred-electron devices that contain a cathode-conductivity notch. Broad agreement is found between the theoretical and experimental behavior. Nonlinear conversion of amplitude modulation (AM) to phase modulation (PM) is less than 5°/dB.