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A Bimodal Low-Power Transceiver featuring a Ring Oscillator-based Transmitter and Magnetic Field-based Receiver for Insertable Smart Pills

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This paper presents a novel bimodal, low-power, mm-scale transceiver for insertable smart pills. The proposed PA-less, 915 MHz uplink transmitter (TX) incorporates an 1.21.2 mm2 on-chip, non-resonated antenna as part of a current-starved ring oscillator (RO) a... ...