Self-Oscillating Mixers in Dielectric Waveguide.
Abstract
The feasibility of constructing a single integrated functional device in a dielectric waveguide cavity has been demonstrated. This device is a self-oscillating mixer and antenna consisting of a negative resistance diode imbedded in a high-resistivity dielectric such as silicon or Al2O3, with one end of the resonant cavity tapered. This taper serves as an antenna or a coupling element into a standard metal waveguide. Tests have been made at Ku-Band and at V-Band, and it has been found that when used as a receiver, the overall noise figure is in the order of 10 to 12 dB, including the IF amplifiers. These receivers also provide large bandwidths. The device is simple in construction which predicts low cost and ease in manufacturing. Applications are suggested based on noise figures, minimum detectable sensitivities, and RF power capabilities for systems requiring small size and low cost. These include communications, expendable Electronic Warfare (EW) sensors, radar and short-range terminal homing. These devices may lead to future developments in low-cost millimeter-wave integrated circuits in which entire sections of precision machined metal waveguide structures are eliminated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1977
- Accession Number
- ADA044128
Entities
People
- Harold Jacobs
- Metro M. Chrepta
Organizations
- United States Army Communications-Electronics Command