Patent US4560965A successfully refreshed from Google Patents.
US4560965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting dielectric resonators
Assignee: British Telecommunications PLC
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Filing: 1984-11-16
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Granted: 1985-12-24
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Expires: 2004-11-16
Abstract
Abstract A microwave dielectric resonator, e.g. for use in a microwave filter or oscillator, is provided with a tough low loss mount. The mount comprises a polymeric support layer 4, which is provided with an aperture 3 beyond which the resonator extends. About the first polymer layer 4 are a pair of polymeric retaining layers 2, 2'. These three polymer layers may be heat bonded together to secure the resonator. Interlayers 5 may be used between the three polymer layers 4, 2, 2' in order to effect a bond.
Inventors
- 👤 Ian G. Gosling
- 👤 Richard D. Carver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/10; H01P1/00; H01P1/20; H01P1/207
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
33 words
A dielectric resonator mount having a laminar structure which comprises a polymeric support layer between two polymeric retaining layers wherein the support layer includes an aperture within which is located a dielectric resonator.
Claim 2
Dependent Claim
33 words
A dielectric resonator mount having a laminar structure which comprises a polymeric support layer between two polymeric retaining layers wherein the support layer includes an aperture within which is located a dielectric resonator.
Claim 3
Dependent Claim
17 words
A dielectric resonator mount as claimed in claim 1 wherein all the layers are heat bonded together.
Claim 4
Dependent Claim
54 words
A dielectric resonator mount as claimed in claim 2 wherein said support and said retaining layers are all formed of substantially the same material, heat bonding between the layers being effected with the aid of intermediate layers of a different material of low dielectric loss positioned between said support layer and said retaining layers.
Claim 5
Dependent Claim
29 words
A dielectric resonator mount as claimed in claim 3 wherein said support and retaining layers are formed of polytetrafluoroethylene homopolymer and said intermediate layers are formed of tetrafluoroethylene copolymer.
Claim 6
Dependent Claim
16 words
A dielectric resonator mount as claimed in claim 4 wherein said polytetrafluoroethylene homopolymer contains a filler.
Claim 7
Dependent Claim
14 words
A dielectric resonator mount as claimed in claim 5 wherein said filler is glass.
Claim 8
Dependent Claim
24 words
A dielectric resonator mount as claimed in any one of the preceding claims wherein said retaining layers are each less than 100 μm thick.
Claim 9
Dependent Claim
20 words
A dielectric resonator mount as claimed in claim 7 wherein said support layer is between 150 and 300 μm thick.
Claim 10
Dependent Claim
26 words
A dielectric resonator mount as claimed in any one of claims 1 to 4 wherein said resonator is disposed symmetrically with respect to said support layer.
Claim 11
Dependent Claim
18 words
A microwave resonant cavity comprising a dielectric resonator mount as claimed in claim 1 mounted in a waveguide.
Claim 12
Dependent Claim
26 words
A microwave resonant cavity as claimed in claim 10 wherein opposite edges of said laminar structure are held in grooves in the walls of said waveguide.
Claim 13
Dependent Claim
24 words
A microwave resonant cavity as claimed in claim 10 or claim 11 wherein the dielectric resonator is mounted on the axis of said waveguide.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-23 | 1989-06-24 | 1989-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-23 | 1993-06-24 | 1993-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-23 | 1997-06-24 | 1997-12-24 | $7700.00 | Window Closed / Lapsed |