Accession Number : ADD006469

Title :   Near Millimeter Wavelength Modulator and Tunable Oscillator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Chiao,Raymond Y

Report Date : 23 Mar 1979

Pagination or Media Count : 16

Abstract : This document discloses a modulator and tunable oscillator capable of reliable operation in the near millimeter wavelength region. The modulator is made up of a pair of reflectors and a beamsplitter interposed there between with one of the reflectors having variable reflectivity. In addition, the reflectors are spaced apart a preselected distance such that a resonant condition is achieved with respect to an incoming beam of near millimeter wavelength radiation. By applying a signal to the variable reflector a beam of radiant energy is generated at a wavelength at which a non-resonant condition is achieved between the reflectors. This generated beam of radiation is directed out of the modulator by the beamsplitter. The oscillator utilizes the same elements as the modulator and in addition incorporates therein an additional beam splitter and a detector as well as a feedback circuit between the detector and variable reflector. (Author)

Descriptors :   *Patent applications, *Oscillators, *Modulators, Tuned circuits, Beam splitting, Feedback, Millimeter waves, Optical circuits, Thermal radiation, Schottky barrier devices

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE