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A 1.5-7.5GHz low power low noise amplifier (LNA) design using subthreshold technique for Wireless Sensor Network (WSN) applicationPublished in
2012
Pages: 1943 - 1946
A novel wide band low power low noise amplifier using subthreshold technique is presented in this paper. This LNA built with Common-Gate (CG) input stage for wide band input matching and a Common Source (CS) -Common Gate (CG) cascode stage for gain boosting. Power reduction is achieved by driving the front end CG transistor in sub-threshold region and input matching is done by LC circuit instead of traditional CG method (Rs=1/g m). The circuit is simulated using Spectra-RF simulator in 0.18μm CMOS technology, and achieved 13.5-14.5 dB (7.5 to 8.5 dB + 6dB loss in buffer) gain over entire band of 1.5-7.5GHz with a 5-10.5dB NF while consuming 4.9mW of power from 1.8V supply. © 2012 IEEE.
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About the journal
| Journal | ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems |
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Authors (2)
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