Title :
The methods applied to eliminate self-oscillation of one integrated LNA
Author :
Wang Guizhen ; Su Donglin ; Xiao Yongxuan ; Zhou Yan
Author_Institution :
BUAA, Beijing, China
Abstract :
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.
Keywords :
MOSFET circuits; UHF amplifiers; circuit feedback; circuit oscillations; circuit stability; earthing; microstrip circuits; network synthesis; printed circuits; 2.4 GHz; 80 to 320 MHz; DC power; LS-band; circuit mismatching; decoupling circuit; grounding; integrated LNA; low noise amplifier; microstrip circuit layout; self-oscillation elimination; source negative feedback stability circuit; static operating point; Circuit stability; Electrodes; Feedback circuits; Grounding; Low-noise amplifiers; Microstrip; Negative feedback; Power supplies; Radio frequency; Radiofrequency amplifiers;
Conference_Titel :
Environmental Electromagnetics, 2003. CEEM 2003. Proceedings. Asia-Pacific Conference on
Conference_Location :
Hangzhou, China
Print_ISBN :
7-5635-0802-3
DOI :
10.1109/CEEM.2003.238597
