Patent EP0427874B1 successfully refreshed from Google Patents.
Patent US4812791A successfully refreshed from Google Patents.
US4812791A
Expired / Lapsed
US
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Dielectric resonator for microwave band
Assignee: Panasonic Holdings Corp
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Filing: 1987-02-18
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Granted: 1989-03-14
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Expires: 2007-02-18
Abstract
Abstract A resonator for microwave or VHF-UHF bands has a ring dielectric plate, one surface of which is metalized to make a resonant line, and at least one of other surfaces of which is also metalized to make a grounded or earth conductor. The resonator is very small in size and has a large unloaded Q value. Several embodiments are disclosed.
Inventors
- 👤 Mitsuo Makimoto
- 👤 Motoi Ohba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:46
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/08; H01P7/082; H01P7/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
61 words
A dielectric resonator for the microwave band, said resonator comprising: a dielectric member having a closed tubular shape comprising inner and outer circumferential surfaces and flat end surfaces; a resonant line conductor disposed on one of said flat end surfaces of the dielectric member; and a grounding conductor disposed on the other of said flat end surface of the dielectric member.
Claim 2
Dependent Claim
61 words
A dielectric resonator for the microwave band, said resonator comprising: a dielectric member having a closed tubular shape comprising inner and outer circumferential surfaces and flat end surfaces; a resonant line conductor disposed on one of said flat end surfaces of the dielectric member; and a grounding conductor disposed on the other of said flat end surface of the dielectric member.
Claim 3
Dependent Claim
14 words
A resonator as claimed in claim 1, wherein said tubular dielectric member is cylindrical.
Claim 4
Dependent Claim
14 words
A resonator as claimed in claim 1, wherein said tubular dielectric member is square.
Claim 5
Dependent Claim
42 words
A resonator as claimed in claim 1, wherein said first metal layer has respective end portions spaced from each other across a gap extending from said inner circumferential surface to said outer circumferential surface whereby a resonator of a half-wavelength is provided.
Claim 6
Dependent Claim
28 words
A resonator as claimed in claim 4, and further comprising a capacitive element extending across said gap and connected between said end portions of the first metal layer.
Claim 7
Dependent Claim
96 words
A dielectric resonator for the microwave band, said resonator comprising; a closed loop-shaped member comprised of a dielectric and having opposite flat end surfaces; a first conductive member extending over a substantial portion of one of said flat end surfaces, the first conductive member having respective end portions spaced apart from one another across a slit, a second conductive member extending over the other of said flat end surfaces, the second conductive member having a closed-loop shape; and a capacitive element extending across said slit and connected between said end portions of the first conductive member.
Claim 8
Dependent Claim
96 words
A dielectric resonator for the microwave band, said resonator comprising; a closed loop-shaped member comprised of a dielectric and having opposite flat end surfaces; a first conductive member extending over a substantial portion of one of said flat end surfaces, the first conductive member having respective end portions spaced apart from one another across a slit, a second conductive member extending over the other of said flat end surfaces, the second conductive member having a closed-loop shape; and a capacitive element extending across said slit and connected between said end portions of the first conductive member.
Claim 9
Dependent Claim
17 words
A dielectric resonator as claimed in claim 6, wherein said closed loop-shaped member has a circular cross-section.
Claim 10
Dependent Claim
17 words
A dielectric resonator as claimed in claim 6, wherein said closed loop-shaped member has a square cross-section.
Claim 11
Dependent Claim
121 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which extends between said inner and said outer circumferential surfaces; a first metal layer extending over one of said surfaces, the first metal layer being a resonant line and having respective end portions spaced from each other across a gap whereby a resonator of a half-wavelength is provided; a second metal layer extending over at least one of the other of said surfaces, said second metal layer being a grounding conductor; and a capacitive element extending across said gap and connected between said end portions.
Claim 12
Dependent Claim
121 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which extends between said inner and said outer circumferential surfaces; a first metal layer extending over one of said surfaces, the first metal layer being a resonant line and having respective end portions spaced from each other across a gap whereby a resonator of a half-wavelength is provided; a second metal layer extending over at least one of the other of said surfaces, said second metal layer being a grounding conductor; and a capacitive element extending across said gap and connected between said end portions.
Claim 13
Dependent Claim
96 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over one of said respective flat end surfaces and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending over the other of said flat end surfaces, said second metal layer being a grounding conductor.
Claim 14
Dependent Claim
96 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over one of said respective flat end surfaces and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending over the other of said flat end surfaces, said second metal layer being a grounding conductor.
Claim 15
Dependent Claim
106 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, and outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over one of said respective flat end surfaces and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending contiguously over said inner and said outer circumferential surfaces and said other of said respective flat end surfaces, said second metal layer being a grounding conductor.
Claim 16
Dependent Claim
106 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, and outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over one of said respective flat end surfaces and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending contiguously over said inner and said outer circumferential surfaces and said other of said respective flat end surfaces, said second metal layer being a grounding conductor.
Claim 17
Dependent Claim
97 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over said outer circumferential surface and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending contiguously over said inner circumferential surface and said respective flat end surfaces, said second metal layer being a grounding conductor.
Claim 18
Dependent Claim
97 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over said outer circumferential surface and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending contiguously over said inner circumferential surface and said respective flat end surfaces, said second metal layer being a grounding conductor.
Claim 19
Dependent Claim
97 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over said inner circumferential surface and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending contiguously over said outer circumferential surface and said respective flat end surfaces, said second metal layer being a ground conductor.
Claim 20
Dependent Claim
97 words
A dielectric resonator for the microwave band, said resonator comprising: a closed ring comprised of a dielectric, said closed ring having an inner circumferential surface, an outer circumferential surface, and respective flat end surfaces each of which is disposed between said inner and said outer circumferential surfaces; a first metal layer extending over said inner circumferential surface and having a closed loop shape, the first metal layer being a resonant line; and a second metal layer extending contiguously over said outer circumferential surface and said respective flat end surfaces, said second metal layer being a ground conductor.
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) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |