Single device for measurement of infrared or millimeter wave radiation

Patent · Tue Apr 02 04:00:00 EST 1985

OSTI ID:5271999

Jacobs, H; Dixon, Jr, S; Malecki, E E

A radiation measurement means is shown which has the capability of detecting 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.

• Assignee: The United States of America as represented by the Secretary of the Army
• Patent Number(s): US 4509009
• OSTI ID: 5271999
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY TRANSFER
FREQUENCY DEPENDENCE
HEAT TRANSFER
INFRARED RADIATION
MEASURING INSTRUMENTS
OSCILLATIONS
RADIATION DETECTORS
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMIMETALS
SILICON
THERMAL CONDUCTION
WAVELENGTHS