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US4871983A
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US
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Electronically tuned dielectric resonator stabilized oscillator
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1988-07-06
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Granted: 1989-10-03
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Expires: 2008-07-06
Abstract
Abstract An electronically tuned dielectric resonator stabilized oscillator has a dielectric resonator that is fine tuned by an electronic method of tuning which includes a varactor coupled to a microstrip. This varactor microstrip transmission line is positioned below the dielectric resonator but above the plane in which a transmission line for the carrier frequency resides. By not placing the fine tuning microstrip line on the same plane as the main oscillator line, spurious oscillation between the fine tuning transmission line and the primary carrier wave resonator frequency line are minimized. Additionally, the fine tuning microstrip line is positioned orthogonal to the pathways along which the main signal transmission lines are coupled.
Inventors
- 👤 Joseph M. Graycar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:07
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/10; H03; H03B; H03B5/00; H03B5/18; H03B5/1864; H03B5/187; H03B5/1876; H03B2200/00; H03B2200/0014; H03B2200/0024; H03B2200/003; H03B2200/004; H03B2201/00; H03B2201/02; H03B2201/0208; H03B5/1841; H03B5/1847; H03B5/1852
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
91 words
A dielectric resonator stabilized oscillator, comprising: resonator means for selecting a particular band frequency; a first transmission line substantially disposed in a first plane, said first transmission line capable of carrying a high frequency input signal and coupled to said resonator; a second transmission line substantially disposed in a second plane and spaced apart from said first plane, said second transmission line spaced apart from and coupled to said resonator means; and, electronic means for fine tuning said resonator, said electronic means for fine tuning coupled to said second transmission line.
Claim 2
Dependent Claim
91 words
A dielectric resonator stabilized oscillator, comprising: resonator means for selecting a particular band frequency; a first transmission line substantially disposed in a first plane, said first transmission line capable of carrying a high frequency input signal and coupled to said resonator; a second transmission line substantially disposed in a second plane and spaced apart from said first plane, said second transmission line spaced apart from and coupled to said resonator means; and, electronic means for fine tuning said resonator, said electronic means for fine tuning coupled to said second transmission line.
Claim 3
Dependent Claim
34 words
The device of claim 1 wherein: said first and second transmission lines are spaced apart by a distance sufficient to minimize spurious coupling between said electronic fine tuning means and said first transmission line.
Claim 4
Dependent Claim
18 words
The device of claim 2 wherein said first and second transmission lines are positioned orthogonal to one another.
Claim 5
Dependent Claim
66 words
The device of claim 1, wherein said first transmission line is split into at least two segments, a first segment connected to a microwave frequency generator first terminal; and, a second segment connected to a microwave frequency generator second terminal; said first and second segments connected to an active oscillation means; whereby, a feedback signal drives said high frequency input for coupling to said resonator means.
Claim 6
Dependent Claim
97 words
A dielectric resonator stabilized oscillator, comprising: resonator means for selecting a particular band frequency; a first transmission line substantially disposed in a first plane, said first transmission line capable of carrying a high frequency input signal and coupled to said resonator; a second transmission line substantially disposed in a second plane and spaced apart from said first plane, said second transmission line spaced apart from and coupled to said resonator means; means for fine tuning said second transmission line; and said means for fine tuning said resonator being a varactor diode connected to said second transmission line.
Claim 7
Dependent Claim
97 words
A dielectric resonator stabilized oscillator, comprising: resonator means for selecting a particular band frequency; a first transmission line substantially disposed in a first plane, said first transmission line capable of carrying a high frequency input signal and coupled to said resonator; a second transmission line substantially disposed in a second plane and spaced apart from said first plane, said second transmission line spaced apart from and coupled to said resonator means; means for fine tuning said second transmission line; and said means for fine tuning said resonator being a varactor diode connected to said second transmission line.
Claim 8
Dependent Claim
125 words
A dielectric resonator stabilized oscillator, comprising: resonator means lying in a coupling plane for selecting a particular band frequency; an oscillator microstrip line capable of carrying a high-frequency input signal selectable by said resonator means, said resonator means coupled along said coupling plane to said microstrip line; means for electronically fine tuning said resonator means; said fine tuning means coupled to a tuning microstrip line, said tuning microstrip line being positioned in a second plane spaced apart from said resonator means and parallel to said coupling plane; between said resonator means and said oscillator microstrip line; whereby, said resonator means may be fine tuned independent from any resonant coupling between said oscillator microstrip line and said resonator without the introduction of noise or spurious oscillations.
Claim 9
Dependent Claim
125 words
A dielectric resonator stabilized oscillator, comprising: resonator means lying in a coupling plane for selecting a particular band frequency; an oscillator microstrip line capable of carrying a high-frequency input signal selectable by said resonator means, said resonator means coupled along said coupling plane to said microstrip line; means for electronically fine tuning said resonator means; said fine tuning means coupled to a tuning microstrip line, said tuning microstrip line being positioned in a second plane spaced apart from said resonator means and parallel to said coupling plane; between said resonator means and said oscillator microstrip line; whereby, said resonator means may be fine tuned independent from any resonant coupling between said oscillator microstrip line and said resonator without the introduction of noise or spurious oscillations.
Claim 10
Dependent Claim
20 words
The dielectric stabilized oscillator of claim 6, wherein: said tuning microstrip line is substantially orthogonal to said oscillator microstrip line.
Claim 11
Dependent Claim
186 words
A dielectric resonator stabilized oscillator, comprising: resonator means lying in a coupling plane for selecting a particular band frequency; an oscillator microstrip line capable of carrying a high-frequency input signal selectable by said resonator means, said resonator means coupled along said coupling plane to said microstrip line; means for electronically fine tuning said resonator means; said fine tuning means coupled to a tuning microstrip line, said tuning microstrip line being positioned in a second plane spaced apart from said resonator means and parallel to said coupling plane; the resonator means being a cylindrical dielectric resonator mounted on a fused silica spacer; said fused silica spacer being mounted on a metallized substrate layer, said substrate layer lying in said coupling plane; said oscillator microstrip line being etched onto said substrate and said tuning microstrip line is etched onto said spacer; whereby, said resonator means and said oscillator microstrip line may be calibrated independent of said fine tuning means; and said resonator means may be fine tuned independent from any resonant coupling between said oscillator microstrip line and said resonator without the introduction of noise or spurious oscillations.
Claim 12
Dependent Claim
186 words
A dielectric resonator stabilized oscillator, comprising: resonator means lying in a coupling plane for selecting a particular band frequency; an oscillator microstrip line capable of carrying a high-frequency input signal selectable by said resonator means, said resonator means coupled along said coupling plane to said microstrip line; means for electronically fine tuning said resonator means; said fine tuning means coupled to a tuning microstrip line, said tuning microstrip line being positioned in a second plane spaced apart from said resonator means and parallel to said coupling plane; the resonator means being a cylindrical dielectric resonator mounted on a fused silica spacer; said fused silica spacer being mounted on a metallized substrate layer, said substrate layer lying in said coupling plane; said oscillator microstrip line being etched onto said substrate and said tuning microstrip line is etched onto said spacer; whereby, said resonator means and said oscillator microstrip line may be calibrated independent of said fine tuning means; and said resonator means may be fine tuned independent from any resonant coupling between said oscillator microstrip line and said resonator without the introduction of noise or spurious oscillations.
Claim 13
Dependent Claim
17 words
The dielectric resonator stabilized oscillator of claim 8, wherein: said fine tuning means is a varactor diode.
Claim 14
Independent Claim
95 words
A method of manufacturing a dielectric resonator stabilized oscillator, comprising the steps of: etching at least one oscillator microstrip line onto a first surface of a substrate semiconductor layer; mounting a fused silica spacer onto said first surface of said substrate layer; etching a tuning microstrip line onto said fused silica spacer; mounting a resonator means on said fused silica spacer, placing said resonator means at a spaced apart distance from said oscillator and tuning microstrip lines; whereby, the resonator means may be coupled to said oscillator microstrip line independent of said tuning microstrip line.
Claim 15
Independent Claim
95 words
A method of manufacturing a dielectric resonator stabilized oscillator, comprising the steps of: etching at least one oscillator microstrip line onto a first surface of a substrate semiconductor layer; mounting a fused silica spacer onto said first surface of said substrate layer; etching a tuning microstrip line onto said fused silica spacer; mounting a resonator means on said fused silica spacer, placing said resonator means at a spaced apart distance from said oscillator and tuning microstrip lines; whereby, the resonator means may be coupled to said oscillator microstrip line independent of said tuning microstrip line.
Claim 16
Dependent Claim
25 words
The method of manufacture of claim 10, wherein: said tuning microstrip line is etched onto said fused silica spacer orthogonal to said oscillator microstrip line.
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) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |