Patent ID: 6597228
Filing Date: 2003-07-22
Classification: G01R

Abstract:
Half-wave RF-diode-rectifier circuit for average power value measurement having at least one rectifier diode and at least one output-side charging capacitor forming a rectifier, wherein an output of the rectifier is loaded with a non-linear load resistance having substantially the same relative temperature coefficient as a video resistance at zero bias of the at least one rectifier diode, so that linearization of the relation of an RF-diode-rectifier-circuit output voltage to input power is effected beyond the square-law range, and wherein the non-linear load resistance is connected between the output of the rectifier and a measurement reference point of an input voltage of the rectifier circuit, wherein the non-linear load resistance comprises at least a single diode driven in reverse direction by a voltage from the rectifier's output.