Resonator having loop-shaped electrode
First Claim
1. A resonator comprising:
- a first electrode formed in a non-spiral loop shape;
a second electrode formed in a plane shape opposite said first electrode with a plate which comprises a dielectric material between said first electrode and said second electrode;
an earth terminal drawn out from said first electrode toward an edge of said plate;
an input/output terminal drawn out from said first electrode toward said edge of said plate at a distance along said edge from said earth terminal, said distance being selected to provide a predetermined impedance; and
another earth terminal drawn out from said second electrode toward said edge of said plate.
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Accused Products
Abstract
A coil electrode pattern is disposed on one surface of a plate consisting of a dielectric material. The coil electrode pattern is formed in a loop shape. An input/output terminal pattern and an earth terminal pattern are drawn out from the coil electrode pattern toward an end portion of the plate. The input/output terminal pattern and the earth terminal pattern are disposed at a distance from each other so as to provide a predetermined impedance. An earth electrode pattern is formed opposite the dielectric coil electrode pattern with the plate between them. An earth terminal pattern is formed to the earth electrode pattern. The earth terminal pattern of the earth electrode pattern is connected to the earth terminal pattern of the coil electrode pattern. A trimming electrode may be formed for adjusting the resonance frequency of the resonator optionally.
8 Citations
19 Claims
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1. A resonator comprising:
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a first electrode formed in a non-spiral loop shape; a second electrode formed in a plane shape opposite said first electrode with a plate which comprises a dielectric material between said first electrode and said second electrode; an earth terminal drawn out from said first electrode toward an edge of said plate; an input/output terminal drawn out from said first electrode toward said edge of said plate at a distance along said edge from said earth terminal, said distance being selected to provide a predetermined impedance; and another earth terminal drawn out from said second electrode toward said edge of said plate. - View Dependent Claims (2, 3, 4, 5)
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6. A resonator comprising:
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a first electrode formed in a non-spiral loop shape; a pair of second electrodes, each formed in a respective plane shape opposite said first electrode, with a respective plate which comprises a dielectric material being disposed between said first electrode and each said second electrode; an earth terminal drawn out from said first electrode toward an edge of said plate; an input/output terminal drawn out from said first electrode toward said edge of said plate at a distance along said edge from said earth terminal, said distance being selected to provide a predetermined impedance; and another earth terminal drawn out from each said second electrode toward said edge of said plate. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A resonator comprising:
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a first electrode formed in a non-spiral loop shape; a second electrode formed in a plane shape opposite said first electrode with a plate which comprises a dielectric material between said first electrode and said second electrode; an earth terminal drawn out from said first electrode toward a periphery of said plate; an input/output terminal drawn out from said first electrode toward said periphery of said plate at a distance along said periphery from said earth terminal, said distance being selected to provide a predetermined impedance; and another earth terminal drawn out from said second electrode toward said periphery of said plate.
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19. A resonator comprising:
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a first electrode formed in a non-spiral loop shape; a pair of second electrodes each formed in a respective plane shape opposite said first electrode, with a respective plate which comprises a dielectric material being disposed between said first electrode and each said second electrode; an earth terminal drawn out from said first electrode toward a periphery of said plate; an input/output terminal drawn out from said first electrode toward said periphery of said plate at a distance along said periphery from said earth terminal, said distance being selected to provide a predetermined impedance; and another earth terminal drawn out from each said second electrode toward said periphery of said plate.
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Specification