Terahertz imager with global reset

Abstract

A pixel circuit including: a detection circuit having first and second transistors coupled in series between differential output nodes of an antenna, wherein the antenna is configured to be sensitive to terahertz radiation; a capacitor coupled to an intermediate node between the first and second transistors; and control circuitry coupled to control nodes of the first and second transistors, the control circuitry being configured for selectively applying to the control nodes one of: a gate biasing voltage for biasing the control nodes of the first and second transistors during a detection phase of the pixel circuit; and a reset voltage for resetting a voltage stored by the capacitor.

Dependencies are inferred from the claim text.