STUDY AND INVESTIGATION OF MILLIMETER AND SUBMILLIMETER RECEIVER TECHNIQUES
Abstract
DESCRIPTORS: *Microwaves, *Infrared detectors, *Infrared optical systems, *Radar receivers, *Infrared rlometers, Electromagnetic waves, Infrared radiation, Di electrics, Ferroelectric crystals, Temperature, Polarization, Antiferromagnetism, Crystals, Magnetostriction, Magneto-optic rotation, Hall effect, Semiconductors, Superconductors, Wave transmission, Waveguides, Electron beams, Fo cusing, Electromagnetic lenses, Microwave equipment, Mathematical analysis, Cavity res onators, Transmission lines. Efforts were made to develop video electromagnetic detection schemes which are usable in the millimeter-infrared region. The analysis and evaluation of pyroelectric effect detectors and antiferromagnetic detectors is presented. Antiferromagnetic detectors appear feasible if their low temperature requirement is acceptable. Other detection schemes which are discussed but which have not been fully investigated include Hall effect devices, photodetection schemes, electron heating in intrinsic semiconductors, and superconducting devices. A Goubau beam type waveguide with a design frequency of 75 kmc was constructed for use in evaluating detection schemes. The design data for this transmission line is presented along with loss measurements. To aid in making measurements on the line, a resonator and a Michelson interferometer was constructed. The problems associated with efficient launching of the beam modes and with focusing the beam waveguide distributions for detection purposes were also investigated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1962
- Accession Number
- AD0284905
Entities
Organizations
- University of Illinois Urbana–Champaign