Detector circuit with dual-diode compensation

Details Detector circuit with dual-diode compensation Detector circuit with dual-diode compensation

1987-10-09

1988-12-13

Miller, Stanley D.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329204, 329205R, 307491, 307310, 307317A, H03D 106, H03K 306

Patent

active

047913800

ABSTRACT:
A detector circuit for radio-frequency signals is formed of a pair of matched diodes disposed on a common substrate which is heated by a temperature responsive feedback circuit to stabilize the temperature of the substrate and the diodes. A capacitor is connected to one or both of the diodes to form a detector of the detector circuit. A bias circuit provides equal bias currents to the two diodes, and an amplifier is connected to the two diodes to extract voltages associated with the bias currents, and to subtract these voltages in a differential manner so as to exclude the effect of bias voltage from an output signal of the amplifier. The amplifier is also coupled to an output terminal of the detector to isolate the detector from subsequent stages of signal processing, as well as to amplify detected signals. The diodes are each, preferably, Schottky diodes for improved dynamic range of signal detection.

REFERENCES:
patent: 3288656 (1966-11-01), Nakamura
patent: 3842359 (1974-10-01), Dickens
patent: 4000472 (1976-12-01), Eastland
patent: 4228371 (1980-10-01), Mazgy
patent: 4249134 (1981-02-01), Stacey
patent: 4400630 (1983-10-01), Owen
patent: 4490681 (1984-12-01), Turner
"Schottky Diode Pair Makes an RF Detector Stable" by Turner, R. J., Electronics (May 2, 1974), pp. 94-95.

Affiliated with

Also associated with

Rating

Detector circuit with dual-diode compensation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detector circuit with dual-diode compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detector circuit with dual-diode compensation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2198443