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Linear and non-linear modelling of a novel ultra-low noise InGaAs/InAlAs pHEMTs have been used to design a low noise amplifier operating from 0.3 to 2 GHz. The LNA has ~ 0.4 dB NF across the whole frequency band, power gain of 26 dB at 1.4 GHz and IP3 of 14 dBm, making it a good candidate for the aperture array concept of the Square Kilometre Array (SKA) telescope, GSM, GPS, civil and military DAB.
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