RADIOFREQUENCY DETECTOR CIRCUIT AND CORRESPONDING RADIOFREQUENCY DETECTION METHOD
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United States of America
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Apr 3, 2025
app pub date -
Aug 28, 2024
filing date -
Aug 28, 2024
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Abstract
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.
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