A Low-Power Single-Stage RF Receiver Front-end: Variable Gain-controlled Double-balanced LMV Cell

DOI

10.2991/cas-15.2015.49How to use a DOI?

Keywords

CMOS; phase noise; series LC tank; LMV cell; noise figure; variable-gain; voltage-conrolled oscillator (VCO) .

Abstract

This paper presents a low-power, single-stage, and variable-gain controlled double-balanced type RF receiver front-end, called DB-LMV cell, by merging low-noise amplifier (LNA), mixer, and voltage-controlled oscillator (VCO) exploiting a series LC (SLC) network. The low intermediate frequency (IF) or baseband signal can be directly sensed at the drain nodes of the VCO switching transistors and filtered out at the IF output port by adding a simple resistor-capacitor (RC) filter. Variable gain control function is achieved by adding a negative resistance cell at the IF output. Using a 65 nm CMOS technology, the proposed DB-LMV cell is designed. Oscillating at around 3.2 GHz, the phase noise of the proposed DB-LMV cell is 67.7 dBc/Hz, 91.1 dBc/Hz, and 111.8 dB/Hz at 10 kHz, 100 kHz, and 1 MHz offset frequency, respectively. The simulated voltage conversion gain varies linearly from 23 dB to 51 dB. The noise figure is about 6.3 dB at 1 MHz offset frequency. The LMV cell consumes 0.56 mW dc power from a 1 V supply.

Copyright

© 2015, 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  - Oh Nam-Jin
PY  - 2015/08
DA  - 2015/08
TI  - A Low-Power Single-Stage RF Receiver Front-end: Variable Gain-controlled Double-balanced LMV Cell
BT  - Proceedings of the 2015 AASRI International Conference on Circuits and Systems
PB  - Atlantis Press
SP  - 205
EP  - 209
SN  - 2352-538X
UR  - https://doi.org/10.2991/cas-15.2015.49
DO  - 10.2991/cas-15.2015.49
ID  - Nam-Jin2015/08
ER  -