Design and Research of X Band GaAs MMIC Low Noise Amplifier
An X-band GaAs Monolithic Microwave Integrated Circuit(MMIC)low noise amplifier designed for radar and satellite communications etc microwave systems is presented.The low noise amplifier consists of two-stage self-biased common-source structure,which can be driven by single positive power supply with 3.5 V.The MMIC circuit can work in the frequency of 8～12 GHz through inductive peaking and broadband matching technology,and it achieves low noise figure in the whole frequency range.The measurement results show that the power gain is above 23 dB,the noise figure is below 1.7 dB,and the 1 dB compression point power is above 13 dBm.
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