18818009. RADIOFREQUENCY DETECTOR CIRCUIT AND CORRESPONDING RADIOFREQUENCY DETECTION METHOD (STMicroelectronics International N.V.)
RADIOFREQUENCY DETECTOR CIRCUIT AND CORRESPONDING RADIOFREQUENCY DETECTION METHOD
Organization Name
STMicroelectronics International N.V.
Inventor(s)
Gaetano Cosentino of Catania IT
RADIOFREQUENCY DETECTOR CIRCUIT AND CORRESPONDING RADIOFREQUENCY DETECTION METHOD
This abstract first appeared for US patent application 18818009 titled 'RADIOFREQUENCY DETECTOR CIRCUIT AND CORRESPONDING RADIOFREQUENCY DETECTION METHOD
Original Abstract Submitted
A radiofrequency detector comprises a squarer circuit comprising first and second branches coupled between a voltage supply and ground, the first branch comprising at least a first squarer transistor receiving a RF sinusoidal input voltage, the first squarer transistor being coupled to the voltage supply through a respective load, the second branch comprising a second reference transistor being coupled to the voltage supply through a respective load, an output voltage being formed at an output node of the first branch and a reference voltage being formed at a respective output node coupled to the load of the second branch, a squared voltage being obtained by a difference voltage of the output voltage and reference voltage, wherein the circuit is configured to feed back to a control electrode of the second reference transistor a feedback signal that is a function of the difference voltage.