The methods applied to eliminate self-oscillation of one integrated LNA

After the reasons for self-oscillation are analyzed, several self-oscillation elimination methods are introduced to the design of a low noise amplifier (LNA) which works in the LS-band. These methods include: adding a source negative feedback stability circuit; improving the decoupling circuit; appl...

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Bibliographic Details
Main Authors: Wang Guizhen, Su Donglin, Xiao Yongxuan, Zhou Yan
Format: Conference Proceeding
Language:English
Subjects:
Circuit stability
Electrodes
Feedback circuits
Grounding
Low-noise amplifiers
Microstrip
Negative feedback
Power supplies
Radio frequency
Radiofrequency amplifiers
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Summary:After the reasons for self-oscillation are analyzed, several self-oscillation elimination methods are introduced to the design of a low noise amplifier (LNA) which works in the LS-band. These methods include: adding a source negative feedback stability circuit; improving the decoupling circuit; applying change to the DC power to adjust the static operating point slightly to deal with circuit mismatching; adjusting the layout of the microstrip circuit; improving grounding; improving the rectifying bias circuit.
DOI:10.1109/CEEM.2003.238597