Low Phase Noise Amplifiers and Doublers.

The article discusses the importance of phase noise a critical factor in sophisticated radar and communication systems and serves a key parameter in defining target acquisition in radars and spectral integrity in communication systems. Topics include the use of phase noise as a measure of the frequency stability of an oscillator, the impact of phase noise to the performance of many microwave systems and the relation of Doppler effect to the velocity of the object being imaged in radar systems.