Claims
- 1. A TE0mn mode dielectric resonator having a resonance frequency , where 1.ltoreq.m and 0.ltoreq.n, 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 formed in the second electrode in substantially the same shape as said first opening and positioned substantially opposite said first opening;
- a first conductor plate disposed 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;
- a second conductor plate disposed 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,
- wherein at least one of said first and second conductor plates is electrically connected to at least one of said first and second electrodes; and
- an input element and an output element, said input and output elements being electromagnetically coupled with said dielectric resonator.
- 2. A dielectric resonator according to claim 1, wherein said dielectric substrate has a thickness and a dielectric constant such that the portion of said dielectric substrate other than a region defined between said first opening and said second opening attenuates a signal having said resonance frequency.
- 3. A dielectric resonator according to claim 1, wherein the spacing between the first surface of said dielectric substrate and said first conductor plate is such that a signal having said resonance frequency is attenuated between said first electrode and said first conductor plate.
- 4. A dielectric resonator according to claim 1, wherein the spacing between the second surface of said dielectric substrate and said second conductor plate is such that a signal having said resonance frequency is attenuated between said second electrode and said second conductor plate.
- 5. A dielectric resonator according to claim 1, wherein a dielectric is provided in at least one space between said first electrode on said first surface and said first conductor plate, and said space between said second electrode on said second surface and said second conductor plate.
- 6. A dielectric resonator according to claim 1, wherein at least one of said first and second openings is substantially circular.
- 7. A dielectric resonator according to claim 1, further comprising a cavity formed by at least said first and second conductor plates, an electromagnetic field of said dielectric resonator being confined in said cavity.
- 8. A TE0mn mode dielectric resonator devices where 1.ltoreq.m and 0.ltoreq.n, comprising:
- a TE0mn dielectric resonator which comprises:
- 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 formed in the second electrode in substantially the same shape as said first opening and positioned substantially opposite said first opening;
- a first conductor plate disposed 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;
- a second conductor plate disposed 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;
- wherein at least one of said first and second conductor plates is electrically connected to at least one of said first and second electrodes; and
- an input device for inputting a signal to said dielectric resonator; and
- an output device for outputting a signal from said dielectric resonator,
- said input device and said output device being electromagnetically coupled with said dielectric resonator.
- 9. A dielectric resonator device according to claim 8, wherein at least one of said input device and said output device comprises a nonradiative dielectric waveguide.
- 10. A high-frequency band-pass filter device comprising:
- a plurality of TE0mn mode dielectric resonators, where 1.ltoreq.m and 0.ltoreq.n, 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 formed in the second electrode in substantially the same shape as said first opening and positioned substantially opposite said first opening;
- a first conductor plate disposed 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 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;
- wherein at least one of said first and second conductor plates is electrically connected to at least one of said first and second electrodes;
- 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,
- said input device and said output device being electromagnetically coupled with said plurality of dielectric resonators, and
- said plurality of dielectric resonators being electromagnetically coupled with each other.
- 11. A filter device according to claim 10, wherein at least one of said input device and said output device comprises a nonradiative dielectric waveguide.
- 12. A dielectric resonator according to claim 1, wherein a dielectric constant of said dielectric substrate and a dielectric constant of a dielectric disposed between said first and second electrodes and said corresponding first and second conductor plates are different from each other.
- 13. A dielectric resonator device according to claim 8, wherein, in said dielectric resonator, a dielectric constant of said dielectric substrate and a dielectric constant of a dielectric disposed between said first and second electrodes and said corresponding first and second conductor plates are different from each other.
- 14. A filter device according to claim 10, wherein, in each of said dielectric resonators, a dielectric constant of said dielectric substrate and a dielectric constant of a dielectric disposed between said first and second electrodes and said corresponding first and second conductor plates are different from each other.
- 15. A dielectric resonator device according to claim 1, wherein at least one of said input element and said output element comprises a nonradiative dielectric waveguide.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7-62625 |
Mar 1995 |
JPX |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part application of U.S. patent application Ser. No. 08/620,918, filed Mar. 22, 1996, now U.S. Pat. No. 5,764,116.
US Referenced Citations (5)
Foreign Referenced Citations (3)
Number |
Date |
Country |
63-59001 |
Mar 1988 |
JPX |
1196977 |
Dec 1985 |
SUX |
1354289 |
Nov 1987 |
SUX |
Continuation in Parts (1)
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Number |
Date |
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Parent |
620918 |
Mar 1996 |
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