W-Band waveguide variable controlled oscillator
US5126696A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/015
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A W-band waveguide variable controlled oscillator incorporating a capacitively coupled Gunn diode and varactor diode arranged in such a manner that adverse environmental conditions do not deleteriously effect the stability of the output of the oscillator. The Gunn diode is electrically connected to a waveguide chamber within the oscillator and includes a resonator electrically connected to its end cap. The resonator is electrically connected to a DC bias source by means of a DC bias filter and a wire inductor. Opposite and above the Gunn diode is a varactor assembly including a varactor diode, which is also electrically connected to a DC bias source through a DC bias filter. A variable coupling spacer within the varactor assembly adjusts the distance between the varactor diode and the Gunn diode such that the capacitive coupling between the two can be adjusted. In addition, an adjustable back-short is incorporated within the waveguide channel to adjust the power output of the oscillator. Also, a fine tuning screw is threadably engaged to the waveguide channel to adjust the capacitance of the resonator. This configuration enables the oscillator to have a stable output and low power …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.