Title :
Characterization of third-order nonlinearity in low noise amplifier
Author :
Wang, Hui ; Li, Gao-Sheng ; Liu, Pei-Guo
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
This paper presents the characterization of third-order nonlinearity in low noise amplifiers (LNAs). The nonlinearities including harmonic distortion, gain compression, cross modulation, intermodulation, blocking, desensitization and etc. In this paper, the focus is on the third-order nonlinearity. A double frequency signal injection method-which the dual-signal is with different frequency sweeping rate-is developed to characterize the nonlinearity. The measurement results demonstrated that all the linear and nonlinear signal paths and effects can be extracted.
Keywords :
harmonic distortion; intermodulation; low noise amplifiers; blocking; cross modulation; desensitization; double frequency signal injection method; gain compression; harmonic distortion; intermodulation; low noise amplifier; third-order nonlinearity; Frequency modulation; Harmonic distortion; Radio frequency; Receivers; Signal to noise ratio; Nonlinearity; double frequency signal; low noise amplifier (LNA); third-order input intercept point (IIP3);
Conference_Titel :
Electrical Design of Advanced Packaging and Systems Symposium (EDAPS), 2011 IEEE
Conference_Location :
Hanzhou
Print_ISBN :
978-1-4673-2288-1
Electronic_ISBN :
2151-1225
DOI :
10.1109/EDAPS.2011.6213798
