Perpendicular-anisotropy MTJ stacks detect low-power microwaves across multiple bands without external bias, cutting size and power needs.
A Josephson junction envelope detector converts modulated RF into cryogenic baseband pulses near the payload, reducing dispersion and distortion.
A self-biased common-gate envelope detector captures rising and falling RF signal edges with low noise bandwidth and no complex calibration.
Dynamic band control adjusts capacitance and current to match signal magnitude and frequency, reducing noise and demodulation distortion.
Scaling, biasing, rectifying, and low-pass filtering help decode variable-amplitude BASK signals despite EMI glitches.
Dual demodulators capture opposite AM wave sides and subtract them to double output frequency, easing RFID signal filtering and reducing distortion.
Dynamic reference demodulation, voltage regulation, and clamping help passive RFID tags run FRAM reliably under varying RF power and temperature.
Edge detection plus switched DC reset lets electromagnetic transponders demodulate higher data rates without added noise sensitivity.
A detector circuit uses a current mirror to supply mirrored currents to rectification elements for stable signal detection.