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US5764116A
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Dielectric resonator and filter utilizing a nonradiative dielectric waveguide device
Assignee: Murata Manufacturing Co Ltd
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Filing: 1996-03-22
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Granted: 1998-06-09
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Expires: 2016-03-22
Abstract
Abstract A dielectric resonator capable of resonating at a predetermined resonance frequency has a dielectric substrate, a first electrode formed on a first surface of the dielectric substrate and having a first opening, a second electrode formed on a second surface of the dielectric substrate and having a second opening, a first conductor plate disposed by being spaced apart from the dielectric substrate by a predetermined distance, and a second conductor plate disposed by being spaced apart from the dielectric substrate by a predetermined distance. The region of the dielectric substrate defined between the first and second electrodes, a free space defined between the first electrode and the first conductor plate and another free space defined between the second electrode and the second conductor plate are cut-off regions for attenuating a high-frequency signal having the same frequency as the resonance frequency. This dielectric resonator can be used in a millimeter wave band, can resonate with markedly small variations of its resonance frequency even if the temperature thereof varies, and can be manufactured at a low cost.
Inventors
- 👤 Yohei Ishikawa
- 👤 Toshiro Hiratsuka
- 👤 Kenichi Iio
- 👤 Sadao Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:49
CPC Classifications
H; H03; H03H; H03H9/00; H01; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/203; H01P1/20309; H01P1/20318; H01P1/207; H01P1/208; H01P1/2084; H01P7/00; H01P7/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
190 words
A dielectric resonator device comprising: a dielectric substrate having a first surface and a second surface opposite from each other; a first electrode formed on the first surface of said dielectric substrate; a first opening formed in the first electrode on the first surface of said dielectric substrate; a second electrode formed on the second surface of said dielectric substrate: a second opening in the second electrode formed in substantially the same shape as said first opening and positioned substantially opposite from said first opening; a first conductor plate disposed by being spaced apart from the first surface of said dielectric substrate by a predetermined distance, a portion of said first conductor plate facing said first opening; and a second conductor plate disposed by being spaced apart from the second surface of said dielectric substrate by a predetermined distance, a portion of said second conductor plate facing said second opening; an input device for inputting a signal to said dielectric resonator; and an output device for outputting a signal from said dielectric resonator, wherein at least one of said input device and said output device comprises a nonradiative dielectric waveguide.
Claim 2
Dependent Claim
190 words
A dielectric resonator device comprising: a dielectric substrate having a first surface and a second surface opposite from each other; a first electrode formed on the first surface of said dielectric substrate; a first opening formed in the first electrode on the first surface of said dielectric substrate; a second electrode formed on the second surface of said dielectric substrate: a second opening in the second electrode formed in substantially the same shape as said first opening and positioned substantially opposite from said first opening; a first conductor plate disposed by being spaced apart from the first surface of said dielectric substrate by a predetermined distance, a portion of said first conductor plate facing said first opening; and a second conductor plate disposed by being spaced apart from the second surface of said dielectric substrate by a predetermined distance, a portion of said second conductor plate facing said second opening; an input device for inputting a signal to said dielectric resonator; and an output device for outputting a signal from said dielectric resonator, wherein at least one of said input device and said output device comprises a nonradiative dielectric waveguide.
Claim 3
Dependent Claim
17 words
A dielectric resonator device according to claim 1, wherein said input device comprises a non-radiative dielectric waveguide.
Claim 4
Dependent Claim
17 words
A dielectric resonator device according to claim 1, wherein said output device comprises a non-radiative dielectric waveguide.
Claim 5
Dependent Claim
21 words
A dielectric resonator device according to claim 1, wherein both said input and output devices each comprise a non-radiative dielectric waveguide.
Claim 6
Dependent Claim
208 words
A high-frequency band-pass filter device comprising: a plurality of dielectric resonators arranged at predetermined intervals, each of said dielectric resonators having: a dielectric substrate having a first surface and a second surface opposite from each other; a first electrode formed on the first surface of said dielectric substrate; a first opening formed in the first electrode on the first surface of said dielectric substrate; a second electrode formed on the second surface of said dielectric substrate: a second opening in the second electrode formed in substantially the same shape as said first opening and positioned substantially opposite from said first opening; a first conductor plate disposed by being spaced apart from the first surface of said dielectric substrate by a predetermined distance, a portion of said first conductor plate facing said first opening; and a second conductor plate disposed by being spaced apart from the second surface of said dielectric substrate by a predetermined distance, a portion of said second conductor plate facing said second opening; an input device for inputting a high-frequency signal to said dielectric resonators; and an output device for outputting a high-frequency signal from said dielectric resonators, wherein at least one of said input device and said output device comprises a nonradiative dielectric waveguide.
Claim 7
Dependent Claim
208 words
A high-frequency band-pass filter device comprising: a plurality of dielectric resonators arranged at predetermined intervals, each of said dielectric resonators having: a dielectric substrate having a first surface and a second surface opposite from each other; a first electrode formed on the first surface of said dielectric substrate; a first opening formed in the first electrode on the first surface of said dielectric substrate; a second electrode formed on the second surface of said dielectric substrate: a second opening in the second electrode formed in substantially the same shape as said first opening and positioned substantially opposite from said first opening; a first conductor plate disposed by being spaced apart from the first surface of said dielectric substrate by a predetermined distance, a portion of said first conductor plate facing said first opening; and a second conductor plate disposed by being spaced apart from the second surface of said dielectric substrate by a predetermined distance, a portion of said second conductor plate facing said second opening; an input device for inputting a high-frequency signal to said dielectric resonators; and an output device for outputting a high-frequency signal from said dielectric resonators, wherein at least one of said input device and said output device comprises a nonradiative dielectric waveguide.
Claim 8
Dependent Claim
18 words
A high-frequency band-pass filter device according to claim 5, wherein said input device comprises a non-radiative dielectric waveguide.
Claim 9
Dependent Claim
18 words
A high-frequency band-pass filter device according to claim 5, wherein said output device comprises a non-radiative dielectric waveguide.
Claim 10
Dependent Claim
22 words
A high-frequency band-pass filter device according to claim 5, wherein both said input and output devices each comprise a non-radiative dielectric waveguide.
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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) | 2001-06-08 | 2001-12-08 | 2002-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-08 | 2005-12-08 | 2006-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-08 | 2009-12-08 | 2010-06-09 | $7700.00 | Window Closed / Lapsed |