Suppression in Active Devices-Circuits.

摘要

The aim of this project is to study the spurious emissions from transit-time Gunn diodes which affect the electromagnetic compatibility of these devices. Harmonic emission far from the fundamental and noise emission in the vicinity of the fundamental have been studied. Efforts on the harmonic program were directed toward the isolation and elimination of extraneous reflections and interferences in the far infrared interferometer. Noise from Gunn effect oscillators has been extensively measured. A major contribution to the noise spectrum is upconverted flicker noise present in the diode current. An analytic treatment of this up-conversion process is given. (Author)