2012•Journal of MicrowavesRequires access

Design of a Compact 6～18GHz Low Noise Amplifier

Qiu Yi-jie

Abstract

A 6～18GHz ultra low noise amplifier is presented.The amplifier used FUJITSU′s GaAs HEMT FHX13X,employs feedback techniques.The ADS software was used as a tool for design,optimization and simulation.The amplifier exhibits state of the art performance with a 1.5dB noise figure,30dB power gain,1 dB compression point(P1dB) 10dBm,flatness ±2.0dB,the input SWR 2,the output SWR2.0 in band.The size of the amplifier is: 10.9mm×9.8mm×2.7mm.

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Key concepts: Low-noise amplifier, Direct-coupled amplifier, Fully differential amplifier, Effective input noise temperature, Amplifier, Noise figure, Flatness (cosmology), Electronic engineering