A capacitive fingerprint system is the most widely used biometric identification method for smartphones. In this paper, we propose a RF sensor-based liveness detection scheme. This method solves the ...

A specific RF power control protocol needs to be running in the MCU of a sensor node and a wake up circuit will be required for the RF stage. These are only some basic considerations respective of RF ...

CMOS mixers are integral components in modern radio frequency (RF) circuit design, enabling frequency conversion in wireless systems while prioritising low power consumption. Recent progress in ...

Sub-1 GHz RF System-on-Chip with Integrated USB Controller for Wireless Sensor Networks Texas Instruments has introduced what it says is the the industry’s first sub-1 GHz radio-frequency (RF) ...

External filters are often needed to filter out RF noise but that requires additional board space. Advanced IC circuit designs integrate the RF filter within the proximity sensor. Elements of a ...