A 915 MHz 175 uW receiver using transmitted-reference and shifted limiters for 50 dB in-band interference tolerance

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    Abstract

    Improving interference robustness in ultralow power (ULP) receivers (RXs) is a big challenge due to their low power budget. This paper presents an envelope detector based 915 MHz 10 kb/s ULP RX, which is fabricated in 65 nm CMOS process for wireless sensor networks and Internet of Things. Two power-efficient techniques, transmitted-reference and shifted limiter, are proposed to improve the nterference robustness. The RX sensitivity is between −61 and −76 dBm. The maximum in-band signal-to-interference ratio at ±1 MHz offset is up to −50 dB while just consuming 175 μW power from a 1 V supply.
    Original languageEnglish
    Pages (from-to)3114-3124
    Number of pages11
    JournalIEEE journal of solid-state circuits
    Volume51
    Issue number12
    DOIs
    Publication statusPublished - 1 Dec 2016

    Keywords

    • EWI-27506
    • IR-102619
    • METIS-319506

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