Oscillators – Combined with particular output coupling network – Space discharge or unilaterally conductive device in output...
Patent
1984-11-29
1985-11-19
LaRoche, Eugene R.
Oscillators
Combined with particular output coupling network
Space discharge or unilaterally conductive device in output...
331 77, 331178, 328 18, 333176, 333219, H03B 100, H03B 104, H03B 1914, H03B 2300
Patent
active
045545162
ABSTRACT:
An electronically tunable solid-state microwave frequency source comprises a transmission-absorption filter incorporated within a magnetic structure. The transmission-absorption filter is employed with a tunable solid-state oscillator and tunable solid-state multiplier to provide a continuously tunable microwave signal source with enhanced spurious signal attenuation over a multiple-octave tuning range. The filter structure comprises a sphere of monocrystalline garnet such as yttrium iron garnet (YIG) and two coupling loops disposed in the field region of an adjustable field DC magnet. The coupling loops are disposed orthogonal to the magnetic field and to each other. In a specific embodiment the first coupling loop is operative to receive at its input the fundamental frequency signal and at its output is grounded, and the second coupling loop is operative to receive a harmonic input signal at its input and to convey a desired output signal at its output. The magnetic sphere of the transmission-absorption filter typically shares the magnetic field of the YIG sphere used to produce the output of the tuned oscillator. The transmission-absorption filter is incorporated into a source including a switch, a fundamental frequency amplifier and a harmonic frequency amplifier.
REFERENCES:
patent: 3879677 (1975-04-01), Arnold
patent: 4342008 (1982-07-01), Jewett
patent: 4401952 (1983-08-01), Basawapatna
LaRoche Eugene R.
Microsource, Inc.
Mis D. C.
LandOfFree
Frequency source having YIG absorption/transmission filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency source having YIG absorption/transmission filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency source having YIG absorption/transmission filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-85963