Direct RF subsampling receivers enabling impulse-based UWB signals for breast cancer detection

Maarten Strackx, Emiliano D'Agostino, Paul Leroux, Patrick Reynaert

    Research outputpeer-review

    5 Scopus citations


    The implementation of a Direct RF subsampling receiver in CMOS is presented for the application of breast cancer detection using impulse-based ultrawideband (UWB) signals. Such a receiver inherently benefits from CMOS scaling since its speed-accuracy tradeoff depends only on technological process parameters. With a proper choice of antenna matching media, the current signal processing requested resolution could be translated into feasible hardware specifications. The track-and-hold (T/H) circuit is analyzed and implemented in a 40-nm chip since this block must cope with the full RF BW. An effective resolution BW of 5.5 GHz was measured with an accuracy of 6 b for rail-to-rail input signals. Second, a two-stage Miller compensated fully differential difference amplifier is discussed with low input parasitics (10 fF) to enable measurements without limiting the performance.

    Original languageEnglish
    Article number7000586
    Pages (from-to)144-148
    Number of pages5
    JournalIEEE Transactions on Circuits and Systems II: Express Briefs
    Issue number2
    StatePublished - Feb 2015

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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