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Higher-Order Analysis on Phase Noise Generation in Varactor-Tuned Oscillators-- Baseband Noise Upconversion in GaAs MESFET Oscillators--
IEICE TRANSACTIONS on Electronics
Publication Date: 1993/12/25
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwave and Millimeter Wave Technology
microwave, oscillator, phase noise, varactor, perturbation,
Full Text: PDF(253.1KB)>>
Phase noise generation in varactor-tuned oscillators is analyzed by an asymptotic perturbation technique. It is found out that 1/f noise and AM noise are converted into phase noise by first- and higher-order nonlinearities of the varactor. The deduced formula can be utilized in CAD for circuit evaluation/optimization of varactor-tuned osicillators.