Sensitivity improved ZigBee RF receiver for a medical sensor

Wah Ching Lee, Joseph Ng, L. F. Yeung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


In this paper, a ZigBee based telemedicine monitoring system is presented with a 2.4 GHz ISM band sensitivity improved low-IF receiver for ZigBee sensor nodes. The receiver implemented is in 0.18 μm 1P6M RF CMOS process. The circuit is formed by a single-end dual band Low Noise Amplifier (LNA) that enhances the sensitivity of the ZigBee receiver by several dB - a key factor that extends the receiver range, a quadrature high gain and low noise current bleeding mixer and a quadrature parallel-coupled voltage-controlled oscillator (VCO). The receiver operates in the 2.4 GHz ISM band and complies with IEEE 802.15.4 (ZigBee) specifications. The circuit exhibits a low noise figure of 2.27 dB and dissipates only 14.6 mW with a 1.2 V supply voltage. This high sensitivity RF receiver is highly suitable for Telemedicine Monitoring System
Original languageEnglish
Title of host publicationProceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
Number of pages7
Publication statusPublished - 1 Dec 2013
Event39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria
Duration: 10 Nov 201314 Nov 2013


Conference39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013


  • LNA
  • Mixer
  • Receiver
  • Telemedicine
  • VCO
  • Wireless Sensor Network
  • ZigBee

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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