EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsMicrowave EngineeringFeedback AmplifiersImpedance MatchingIntegrated Circuit DesignMicrowave AmplifiersMicrowave Integrated CircuitsRadio-frequency Integrated CircuitsEquivalent Series InductanceFeedbackLow-noise AmplifiersMonolithic Microwave Integrated Circuit DesignNoise AnalysisNoise FigureNoise Figure AnalysisRadio-frequency Integrated Circuit Design
An X-band monolithic three-stage low noise amplifier (LNA) employing series feedback has demonstrated 1.8 dB noise figure with 30.0 dB gain and an input VSWR less than 1.2:1 at 10 GHz. The key to this design is using monolithic technology to obtain an exactly repeatable series feedback inductance to achieve a simultaneous noise match and input VSWR match.
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