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Noise-cancelled subthreshold UWB LNA for Wireless Sensor Network applicationPublished in
2012
Pages: 383 - 386
In this paper, a low power, noise-cancelling subthreshold Ultra ideband (UWB) Low Noise Amplifier (LNA) is presented. In this work subthreshold driven Common Gate (CG) input stage is modified to provide wideband input matching and a current reuse noise cancelling technique is introduced to improve noise performance. Additionally, substantial reduction in power consumption is obtained by driving the MOS devices in subthreshold region. Circuit is simulated using Spectre simulator in UMC 180nm CMOS technology and achieved a gain of 12-13.2 dB (6-7.2 dB + 6dB loss in buffer) with a noise figure of 4-5dB over the band of 1.5-8.5 GHz. Proposed circuit consumes only 1.4mW from 1.5V supply. Hence the proposed circuit topology is very useful for WSN application. © 2012 IEEE.
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About the journal
| Journal | Proceedings - IEEE International Conference on Ultra-Wideband |
|---|---|
| ISSN | 21626588 |
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