An Ultra-low-power Integrated RF Front-end Based on Chip Transformer for UWB system

DOI

10.2991/nceece-15.2016.225How to use a DOI?

Keywords

ultra-low-power; UWB; CMOS; transformer

Abstract

In this paper, an ultra-low-power integrated RF front-end for UWB system is proposed. It contains a single-ended low noise amplifier (LNA) and a double balanced mixer. The resistive shunt feedback topology is employed to achieve a good input impedance matching in the whole UWB band. The stacked common-source (CS) LNA is adopting current-reuse and forward body bias techniques to reduce working current and voltage considerably. A transformer network is employed between LNA and double balanced mixer, which not just helps to convert the single-ended signal to differential signal, but also makes a great contribution to save the power consumption of the front-end circuit. Fabricated in the TSMC 0.18- m RF CMOS technology, the S11 of the front-end is below -10dB in 3.1~10.6GHz. It achieves a conversion gain of 18.3~20.5dB, the double sideband (DSB) NF of 4.3~6.1dB. The IIP3 are -3.8dBm at 4.5GH. It consumes 2.4mA from a 0.8V supply voltage and occupies an active area of only 0.86*0.52 mm2.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yi Li
AU  - Chunhua Wang
AU  - Kui Fu
PY  - 2015/12
DA  - 2015/12
TI  - An Ultra-low-power Integrated RF Front-end Based on Chip Transformer for UWB system
BT  - Proceedings of the 2015 4th National Conference on Electrical, Electronics and Computer Engineering
PB  - Atlantis Press
SP  - 1274
EP  - 1280
SN  - 2352-5401
UR  - https://doi.org/10.2991/nceece-15.2016.225
DO  - 10.2991/nceece-15.2016.225
ID  - Li2015/12
ER  -