Patent US6204739B1 successfully refreshed from Google Patents.
US6204739B1
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US
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Dielectric resonant apparatus
Assignee: Murata Manufacturing Co Ltd
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Filing: 1999-02-23
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Granted: 2001-03-20
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Expires: 2019-02-23
Abstract
Abstract Electrodes are formed on respective two main surfaces of a dielectric sheet wherein each electrode has an opening formed at a location corresponding to the location of the opening formed in the other electrode. The part defined by the openings serves as a dielectric resonator. Coupling lines are formed directly in the electrode opening. Transmission lines are formed on a circuit board. The coupling lines and the corresponding transmission lines are connected to each other via bonding wires. This structure makes it possible to minimize the external Q of a resonant circuit using the dielectric resonator. If an oscillator is produced using this resonant circuit, it is possible to achieve a large frequency modulation with and large output.
Inventors
- 👤 Koichi Sakamoto
- 👤 Takatoshi Kato
- 👤 Kenichi Iio
- 👤 Sadao Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:16
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/10; H01P1/00; H01P1/20; H01P1/201; H01P1/203; H01P1/20309; H01P1/20318; H01P1/205
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
A dielectric resonant apparatus including a dielectric resonator including electrodes formed on respective two main surfaces of a dielectric sheet, each said electrode having an opening formed at a location corresponding to the location of the opening formed in the other electrode, said dielectric resonant apparatus being characterized in that: a coupling line coupled with said dielectric resonator is disposed in at least one of said openings and directly on the corresponding surface of the dielectric sheet; and a transmission line is formed outside said at least one of said openings; wherein said transmission line is electrically connected to said coupling line.
Claim 2
Dependent Claim
102 words
A dielectric resonant apparatus including a dielectric resonator including electrodes formed on respective two main surfaces of a dielectric sheet, each said electrode having an opening formed at a location corresponding to the location of the opening formed in the other electrode, said dielectric resonant apparatus being characterized in that: a coupling line coupled with said dielectric resonator is disposed in at least one of said openings and directly on the corresponding surface of the dielectric sheet; and a transmission line is formed outside said at least one of said openings; wherein said transmission line is electrically connected to said coupling line.
Claim 3
Dependent Claim
36 words
A dielectric resonant apparatus according to claim 1 , wherein said transmission line is constructed in the form of a coplanar line using, as a ground electrode, one of said electrodes formed on said dielectric sheet.
Claim 4
Dependent Claim
50 words
A dielectric resonant apparatus according to claim 1 , wherein: on the surface of said dielectric sheet, there is disposed another dielectric sheet or dielectric film; and a microstrip line is formed on said another dielectric sheet or dielectric film such that said microstrip line serves as said transmission line.
Claim 5
Dependent Claim
54 words
A dielectric resonant apparatus according to claim 1 , wherein said transmission line and said coupling line are electrically connected to each other via a conductor formed on an interconnecting member disposed on the surface of said dielectric sheet, said conductor being insulated from the electrode on the main surface of said dielectric sheet.
Claim 6
Dependent Claim
30 words
A dielectric resonant apparatus according to claim 2 , wherein the center conductor of said coplanar line and said coupling line are constructed in the form of a single line.
Claim 7
Dependent Claim
38 words
A dielectric resonant apparatus according to claim 2 , wherein two ground electrodes located at both sides of the center conductor of said coplanar line are connected to each other via a conductor extending over said center 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) | 2004-03-19 | 2004-09-18 | 2005-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-19 | 2008-09-18 | 2009-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-19 | 2012-09-18 | 2013-03-20 | $7700.00 | Window Closed / Lapsed |