Single device for measurement of infrared or millimeter wave rad

Details Single device for measurement of infrared or millimeter wave rad Single device for measurement of infrared or millimeter wave rad

1983-05-19

1985-04-02

Levy, Stewart J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With waveguide or long line

250338, 250370, G01R 2304

Patent

active

045090092

ABSTRACT:
A radiation measurement means is shown which has the capability of detect radiation in both the millimeter wave, and the infrared, frequency regions. A basic self-oscillating Gunn diode is enclosed in a donut shaped silicon ring. The presence of infrared energy will create holes and electrons in the silicon material, altering its conductivity, and lower the power of oscillation. The realized drop in oscillating power identifies the infrared. Millimeter wave radiation is detected because an intermediate frequency is generated as the Gunn diode operates as a self-oscillating mixer of the new different frequency with its own oscillating frequency. Thus it is possible to detect signals from both ranges, in a single device.

REFERENCES:
patent: 3492489 (1970-01-01), Chynoweth
patent: 3568058 (1971-03-01), Komatsubara
patent: 4236165 (1980-11-01), Kawashima et al.
patent: 4348686 (1982-09-01), Esaki et al.
patent: 4454489 (1984-06-01), Donazzan et al.

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