Thin film resistor microwave noise generator

Details Thin film resistor microwave noise generator Thin film resistor microwave noise generator

1979-05-25

1981-06-09

Grimm, Siegfried H.

Oscillators

Electrical noise or random wave generator

331 70, 333 33, 333204, H03B 2900

Patent

active

042727316

ABSTRACT:
The invention is a novel noise reference generator for use in amplitude comparison radiometric systems for the purpose of rapid precision control of the over-all gain of the radiometer receiver. The reference generator operates by cyclic modulation of the temperature of a unique planar thin film microresistor which may be disposed in a constant temperature environment. A strip transmission circuit provides a common path for the microresistor heater currrent and for the generated noise signals, along with means for separating these currents.

REFERENCES:
patent: 3693095 (1972-09-01), Wilt
patent: 3711778 (1973-01-01), Day

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