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Patent US5227739A successfully refreshed from Google Patents.
US5227739A
Expired / Lapsed
US
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Voltage controlled oscillator having a resonator
Assignee: Murata Manufacturing Co Ltd
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Filing: 1991-12-18
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Granted: 1993-07-13
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Expires: 2011-12-18
Abstract
Abstract A voltage controlled oscillator having a resonator wherein a substrate is made up of a plurality of dielectric layers; an inductor functioning conductive film and grounding electrode films are each formed at a boundary surface of one of the dielectric layers; the earth electrode films are arranged, in the direction in which the dielectric layers are laminated, at both sides of the conductor functioning conductive film; the inductor functioning conductive film and the grounding electrode films constitute the resonator; and electric lands are formed on the surface of the substrate so that other components of the oscillator are mounted on the surface of the substrate.
Inventors
- 👤 Harufumi Mandai
- 👤 Keiji Asakawa
- 👤 Yoshikazu Chigodo
- 👤 Atsushi Inoue
- 👤 Yo Funada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/16; H05K1/165; H03; H03B; H03B5/00; H03B5/18; H03B5/1841; H03B2202/00; H03B2202/04; H05K1/02; H05K1/03; H05K1/0306; H05K1/09; H05K1/092; H05K1/162; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09218; H05K2201/09263; H05K2201/09654; H05K2201/09672; H05K3/00; H05K3/46; H05K3/4611; H05K3/4626; H05K3/4629
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
138 words
A voltage controlled oscillator having a resonator, comprising: a substrate made up of a plurality of dielectric layers, said substrate being made from one of the dielectric materials BaO-SiO 2 -Al 2 O 3 and BaO-SrO-SiO 2 -ZrO 2 ; an inductor functioning conductive film, grounding electrode films, and a capacitor electrode film each formed at a boundary surface of one of the dielectric layers, said grounding electrode films being arranged, in the direction in which the dielectric layers are laminated, at both sides of said inductor functioning conductive film; said inductor functioning conductive film and a pair of said grounding electrode films constituting the resonator; all of said films being made from one of Ag and Cu; and electric lands formed on the surface of said substrate so that other components of the oscillator are mounted thereon.
Claim 2
Dependent Claim
138 words
A voltage controlled oscillator having a resonator, comprising: a substrate made up of a plurality of dielectric layers, said substrate being made from one of the dielectric materials BaO-SiO 2 -Al 2 O 3 and BaO-SrO-SiO 2 -ZrO 2 ; an inductor functioning conductive film, grounding electrode films, and a capacitor electrode film each formed at a boundary surface of one of the dielectric layers, said grounding electrode films being arranged, in the direction in which the dielectric layers are laminated, at both sides of said inductor functioning conductive film; said inductor functioning conductive film and a pair of said grounding electrode films constituting the resonator; all of said films being made from one of Ag and Cu; and electric lands formed on the surface of said substrate so that other components of the oscillator are mounted thereon.
Claim 3
Dependent Claim
27 words
A voltage controlled oscillator having a resonator of claim 1, wherein said inductor functioning conductive film and said grounding electrode films form the strip line type resonator.
Claim 4
Dependent Claim
25 words
A voltage controlled oscillator having a resonator of claim 2, wherein said capacitor electrode film forms capacitance between itself and the facing grounding electrode film.
Claim 5
Dependent Claim
31 words
A voltage controlled oscillator having a resonator of claim 3, wherein each of said films and the electric lands are connected with one another via through holes filled with conductive material.
Claim 6
Dependent Claim
29 words
A voltage controlled oscillator having a resonator of claim 3, wherein another electrode film is formed at a boundary surface of one of the dielectric layers of the substrate.
Claim 7
Dependent Claim
24 words
A voltage controlled oscillator having a resonator of claim 5, said another electrode film is a capacitor electrode opposite to said grounding electrode films.
Claim 8
Dependent Claim
34 words
A voltage controlled oscillator having a resonator of claim 6, said capacitor electrode is disposed between said grounding electrode films and the upper surface of the substrate without electrically contacting with said through holes.
Claim 9
Dependent Claim
28 words
A voltage controlled oscillator having a resonator of claim 1, wherein the electrode films and the conductive film are made from metallic material with a low melting point.
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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |