EP0963000A2
Expired / Lapsed
EP
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Resonator structures
Assignee: Nokia Oyj
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Filing: 1999-06-02
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Granted: —
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Expires: 2019-06-02
Abstract
Abstract The invention relates to resonator structures of radio communication apparatus. According to the invention, a micromechanical switch and a resonator are realized in a single combined structure. Combination of switch and resonator structures allows the manufacture of very compact filter and resonator structures needed for multi-system mobile communication means.
Inventors
- 👤 Juha Ella
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 12:25
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/54; H03H9/58; H03H9/582; H03H9/583; H03H9/585; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01P1/127; H03H9/02; H03H9/05; H03H9/0538; H03H9/0547; H03H9/15; H03H9/17; H03H9/171; H03H9/172; H03H9/173; H03H9/174; H03H9/175; H03H9/545; H03H9/586; H03H9/587; H03H9/60; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/20; H01H1/0036; H01H2001/0052; H01H2001/0057; H01H59/00; H01H59/0009
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
A resonator structure comprising a resonator having a piezoelectric layer,
characterised in that the resonator structure comprises a first conductor and a second conductor for conducting a control voltage, at least one of said first and second conductors being in contact with said
piezoelectric layer for forming an electrode of the resonator, and a bending element for performing the switching function as a response to a
control voltage applied to said first and second conductors.
Claim 2
Dependent Claim
17 words
A resonator structure according to Claim 1, characterised in that the piezoelectric layer is said bending element.
Claim 3
Dependent Claim
28 words
A resonator structure according to Claim 1, characterised in that the structure comprises a supporting layer for supporting said piezoelectric
layer, said supporting layer being said bending element.
Claim 4
Dependent Claim
24 words
A resonator structure according to Claim 1, characterised in that the resonator structure comprises a cantilever element said cantilever
element being said bending element.
Claim 5
Dependent Claim
18 words
A resonator structure according to Claim 1, characterised in that said resonator is a bulk acoustic wave resonator.
Claim 6
Dependent Claim
18 words
A resonator structure according to Claim 1, characterised in that the resonator structure comprises at least one filter.
Claim 7
Dependent Claim
77 words
Mobile communication means, characterised in that the mobile communication means comprises a resonator structure,
which resonator structure comprises a first conductor and a second conductor for conducting a switch function
control voltage, at least one of said first and second conductors being in contact with said
piezoelectric layer for forming an electrode of the resonator, a bending element for performing the switching function as a response to a
control voltage applied to said first and second conductors.
References Cited (Backward Citations)
No citation records indexed.
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