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Micromachines 2018, 9(1), 31; https://doi.org/10.3390/mi9010031

Design Considerations for a Sub-mW Wireless Medical Body-Area Network Receiver Front End

Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy
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Received: 31 October 2017 / Revised: 6 January 2018 / Accepted: 12 January 2018 / Published: 17 January 2018
(This article belongs to the Special Issue Wireless Microdevices and Systems for Biomedical Applications)
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Abstract

Wireless medical body-area networks are used to connect sensor nodes that monitor vital parameters. The radio consumes a large portion of the sensor energy budget, and hence its power dissipation should be minimized. The low-noise amplifier (LNA) is an important component of the receiver, and must guarantee low-noise amplification and impedance matching. In this work, an ultra-low-voltage ultra-low-power LNA is proposed that, thanks to the proposed transformer-based gate boosting technique, has a reduced current consumption of only 160 μA and can operate with a supply as low as 0.18 V. The LNA was designed using 40 nm Complementary Metal-Oxide Semiconductor (CMOS) technology and features a voltage gain of 14 dB, 5.2 dB NF and −8.6 dBm IIP3. This performance is comparable to a prior work by the same authors, but with the minimum supply voltage reduced by a factor of 4x. View Full-Text
Keywords: wireless body area network; ultra-low-power; ultra-low-voltage; receiver; low-noise-amplifier wireless body area network; ultra-low-power; ultra-low-voltage; receiver; low-noise-amplifier
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Kargaran, E.; Manstretta, D.; Castello, R. Design Considerations for a Sub-mW Wireless Medical Body-Area Network Receiver Front End. Micromachines 2018, 9, 31.

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