A low-power 2.4-GHz current-reused receiver front-end and frequency source for wireless sensor network

Taeksang Song, Hyoung Seok Oh, Euisik Yoon, Songcheol Hong

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

In this paper, we present a receiver front-end and a frequency source suitable for wireless sensor network applications, in which power consumption is severely restricted under several milliwatts. For such an extremely low-power receiver, current-reusing and frequency multiplying schemes are proposed for both the RF front-end and frequency source. The proposed front-end achieves a conversion gain of 30.5 dB and a noise figure of 10.2 dB at the 10-MHz intermediate frequency (IF), taking only 500-μA bias current from a 1.0-V supply voltage. The measured phase noise of the fabricated frequency source is - 115.83 dBc/Hz at 1 MHz offset from a 2.2-GHz center frequency, taking 840 μA from a 0.7-V supply. The front-end performance is compared with the previously reported low-power front-ends operating in similar frequency ranges.

Original languageEnglish
Pages (from-to)1012-1021
Number of pages10
JournalIEEE Journal of Solid-State Circuits
Volume42
Issue number5
DOIs
Publication statusPublished - 2007 May 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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