DocumentCode
3532096
Title
Analysis and Simulation of Balanced Low Noise Amplifier
Author
Guoying Sun ; Jingfu Bao
Author_Institution
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
fYear
2009
fDate
28-29 April 2009
Firstpage
1
Lastpage
4
Abstract
We give an analysis of balanced low noise amplifier (LNA) which has good voltage standing wave ratio (VSWR) performance, higher linearity and good stability. A mathematic model of balanced LNA has been setup and an analysis of gain, noise figure (NF) and VSWR based on it is presented. According to analysis in time domain and simulation in advance design system (ADS), the unbalance of gain, NF and VSWR will affect the performance of the balanced LNA module. It gets a zero reflection on condition that its two branches totally balanced. 10 dB difference of gains causes NF increased by 1 dB.
Keywords
circuit simulation; low noise amplifiers; advance design system; low noise amplifier; voltage standing wave ratio; zero reflection; Analytical models; Linearity; Low-noise amplifiers; Mathematical model; Mathematics; Noise measurement; Performance analysis; Signal to noise ratio; Stability analysis; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Testing and Diagnosis, 2009. ICTD 2009. IEEE Circuits and Systems International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-2587-7
Type
conf
DOI
10.1109/CAS-ICTD.2009.4960781
Filename
4960781
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