A Low-Power Single-Stage RF Receiver Front-end: Variable Gain-controlled Double-balanced LMV Cell
- Oh Nam-Jin
- Corresponding Author
- Oh Nam-Jin
Available Online August 2015.
- https://doi.org/10.2991/cas-15.2015.49How to use a DOI?
- CMOS; phase noise; series LC tank; LMV cell; noise figure; variable-gain; voltage-conrolled oscillator (VCO) .
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
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 - 2015 AASRI International Conference on Circuits and Systems (CAS 2015) PB - Atlantis Press UR - https://doi.org/10.2991/cas-15.2015.49 DO - https://doi.org/10.2991/cas-15.2015.49 ID - Nam-Jin2015/08 ER -