US4420731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled voltage yttrium iron garnet (YIG) resonator apparatus
Assignee: Stellex Microwave Systems Inc
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Filing: 1981-08-10
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Granted: 1983-12-13
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Expires: 2001-08-10
Abstract
Abstract A controlled voltage yttrium iron garnet (YIG) resonator incorporates a clipping diode in order to maintain a constant output voltage. The clipping diode is connected either across an input or an output loop associated with the resonator. The resonator, as a result of its high Q characteristic, is insensitive to changes in capacitance of the clipping diode.
Inventors
- 👤 Cristopher F. Schiebold
- 👤 William R. Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:19
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/215; H01P1/218; H03; H03B; H03B5/00; H03B5/18; H03B5/1882; H03B5/1888; H03B2201/00; H03B2201/02; H03B2201/0225; H03B2201/0241
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
56 words
A controlled voltage YIG resonater comprising a YIG sphere, an input coupling loop coupled to said sphere, means providing a magnetic field to said YIG sphere, and a diode coupled to said resonator to limit the voltage developed across the resonator, said diode operating as a voltage clipping device which does not significantly detune the resonator.
Claim 2
Dependent Claim
56 words
A controlled voltage YIG resonater comprising a YIG sphere, an input coupling loop coupled to said sphere, means providing a magnetic field to said YIG sphere, and a diode coupled to said resonator to limit the voltage developed across the resonator, said diode operating as a voltage clipping device which does not significantly detune the resonator.
Claim 3
Dependent Claim
19 words
A controlled voltage YIG resonator as in claim 1 in which said diode is connected across said coupling loop.
Claim 4
Dependent Claim
23 words
A controlled voltage YIG resonator as in claim 1 including an output loop coupled to said YIG sphere for providing the output voltage.
Claim 5
Dependent Claim
19 words
A controlled voltage YIG resonator as in claim 3 in which said diode is connected across said output loop.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |