Abstract
A 5.8GHz single-stage low noise amplifier (LNA) for radio frequency identification devices (RFID) applications was proposed according to the theory of LNA. It has been realized by ATF-541M4 transistor and its peripheral circuit, such as bias circuit, input and output matching network. The proposed LNA provides a gain of 12.696dB from the analysis of ADS. The LNA achieves 0.951dB noise figure (NF) at the frequency of 5.8GHz. The simulation results show that this LNA has good noise characteristic, the NF is less than other published paper.
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