Design of 1.8V 1GHz 0.18 m CMOS LNA for GPS
نویسندگان
چکیده
the low noise amplifier is the key part for front-end device of the receiver in the GPS. A 1.8V 0.18um CMOS LNA for GPS applications has been designed. Two kinds of low noise amplifier (LNA) for single-end cascade structure and differential cascade structure respectively are presented in this paper. Cadence software is used to optimize the two circuits. It provides a series of good results in Noise figure, Linearity and Power dissipation. With a 1.8 V supply, the two LNAs achieve power gains of 19.5dB and 23dB, Noise figures of 1.9dB and 1.95dB. Besides, the input P1dB is -19.05dBm and-14.65dBm. Keywords-GPS; CMOS; Low noise amplifer
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