Biasing circuitry for a diode detector

Details Biasing circuitry for a diode detector Biasing circuitry for a diode detector

H - Electricity

03

D

329/24, 330/39

H03D 1/10 (2006.01) G01R 19/22 (2006.01) G01R 21/14 (2006.01)

Patent

CA 2009381

The invention relates to a biasing circuitry in a power level detector used for power control of a high-frequency power amplifier. According to the invention, to compensate for variation caused in the detector diode (D) threshold voltage by temperature changes, a constant-power source (T, R1, R2) is used by means of which the operating point of the detector diode (D) is set at a constant level and close to the angle point of the threshold voltage of the diode (D).

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