Fully integrated 2.45-GHz OOK receiver for wireless sensor networks

Cihun Siyong Alex Gong*, Chia Hung Chang, Yu Lin Tsou

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations


This paper introduces an optimized receiver architecture using the current-reuse technique to improve receiver sensitivity while minimizing power consumption. An ISM band wireless receiver with OOK modulation was implemented in the TSMC 0.18-µm CMOS process. The receiver contains an RF front end, an LC-tank based LO VCO, an IF amplifier and an OOK demodulator. In addition, the IF amplifier features a self-mixing elimination mechanism which allows the BER to upgrade more than one order of magnitude. Measurement results show a sensitivity of −63 dBm given a BER of 10−3. Using the gain-improving method, the sensitivity is improved by 4 dB (100-kbps data rate). Including the bias circuit, overall power consumption is less than 383 μW under a 1.2-V supply, providing an alternate solution for wireless radio applications.

Original languageEnglish
Pages (from-to)1926-1941
Number of pages16
JournalInternational Journal of Circuit Theory and Applications
Issue number11
StatePublished - 01 11 2016

Bibliographical note

Publisher Copyright:
Copyright © 2016 John Wiley & Sons, Ltd.


  • RF front end
  • sensitivity improvement
  • wireless receiver
  • wireless sensor network


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