Patent US7256663B2 successfully refreshed from Google Patents.
US7256663B2
Expired / Lapsed
US
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Balun device, balance filter device, and wireless communication apparatus
Assignee: Taiyo Yuden Co Ltd
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Filing: 2005-02-02
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Granted: 2007-08-14
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Expires: 2025-02-02
Abstract
Abstract A balun device, a balance filter device, and a wireless communication apparatus are provided. An intermediate electrode is disposed between a balanced resonance electrode and a GND electrode. More specifically, the balun device includes a pair of GND electrodes formed on a dielectric layer, an unbalanced resonance electrode formed on a dielectric layer, and a balanced resonance electrode formed on a dielectric layer. The unbalanced resonance electrode and the balanced resonance electrode are disposed between the pair of GND electrodes by laminating the corresponding dielectric layers. The intermediate electrode is interposed between the balanced resonance electrode and the GND electrode positioned close to the balanced resonance electrode.
Inventors
- 👤 Hisahiro Yasuda
- 👤 Shinichi Sugiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:53
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/10; H01P1/00; H01P1/20; H01P1/201; H01P1/203
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
147 words
A balance filter device comprising: a filter unit formed by laminating a plurality of dielectric substrates; and a balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode formed on a dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; and an intermediate electrode disposed between one of the unbalanced resonance electrode or the balanced electrode and the ground (GND) electrode near the one of the unbalanced resonance electrode or the balanced electrode wherein the intermediate electrode is formed larger than the ground (GND) electrode, the filter unit being connected to the unbalanced resonance electrode of the balun unit, wherein the filter unit and the balun unit are formed of the same dielectric material.
Claim 2
Dependent Claim
147 words
A balance filter device comprising: a filter unit formed by laminating a plurality of dielectric substrates; and a balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode formed on a dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; and an intermediate electrode disposed between one of the unbalanced resonance electrode or the balanced electrode and the ground (GND) electrode near the one of the unbalanced resonance electrode or the balanced electrode wherein the intermediate electrode is formed larger than the ground (GND) electrode, the filter unit being connected to the unbalanced resonance electrode of the balun unit, wherein the filter unit and the balun unit are formed of the same dielectric material.
Claim 3
Dependent Claim
169 words
A balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode formed on a dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; and an intermediate electrode disposed between one of the unbalanced resonance electrode or the balanced electrode and the ground (GND) electrode near the one of the unbalanced resonance electrode or the balanced electrode wherein the intermediate electrode is formed larger than the ground (GND) electrode, wherein the pair of ground (GND) electrodes and the unbalanced resonance electrode overlap each other in the laminating direction, the pair of ground (GND) electrodes and the balanced resonance electrode overlap each other in the laminating direction, the intermediate electrode and the unbalanced resonance electrode overlap each other in the laminating direction, and the intermediate electrode and the balanced resonance electrode overlap each other in the laminating direction.
Claim 4
Dependent Claim
169 words
A balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode formed on a dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; and an intermediate electrode disposed between one of the unbalanced resonance electrode or the balanced electrode and the ground (GND) electrode near the one of the unbalanced resonance electrode or the balanced electrode wherein the intermediate electrode is formed larger than the ground (GND) electrode, wherein the pair of ground (GND) electrodes and the unbalanced resonance electrode overlap each other in the laminating direction, the pair of ground (GND) electrodes and the balanced resonance electrode overlap each other in the laminating direction, the intermediate electrode and the unbalanced resonance electrode overlap each other in the laminating direction, and the intermediate electrode and the balanced resonance electrode overlap each other in the laminating direction.
Claim 5
Dependent Claim
54 words
The balun device according to claim 2 , wherein the intermediate electrode is configured to place intervention between the balanced resonance electrode and the ground (GND) electrode close thereto to ease resonance characteristics of a stripline structure formed by the pair of ground (GND) electrodes, the unbalanced resonance electrode, and the balanced resonance electrode.
Claim 6
Dependent Claim
34 words
The balun device according to claim 2 , wherein the balanced resonance electrode comprises a pair of resonance electrodes, and the intermediate electrode is positioned to face each of the pair of resonance electrodes.
Claim 7
Dependent Claim
33 words
The balun device according to claim 2 , wherein the intermediate electrode is disposed at a position closer to the ground (GND) electrode near the balanced resonance electrode than the balanced resonance electrode.
Claim 8
Dependent Claim
38 words
A balance filter device comprising: a filter unit formed by laminating a plurality of dielectric substrates; and the balun device of claim 2 , the filter unit being connected to the unbalanced resonance electrode of the balun unit.
Claim 9
Dependent Claim
34 words
The balance filter device according to claim 6 , wherein the intermediate electrode is disposed at a position closer to the ground (GND) electrode near the balanced resonance electrode than the balanced resonance electrode.
Claim 10
Dependent Claim
22 words
The balance filter device according to claim 6 , wherein the filter unit is disposed between the pair of ground (GND) electrodes.
Claim 11
Dependent Claim
27 words
A wireless communication apparatus comprising: an antenna; the balance filter device of claim 6 ; and a radio-frequency integrated circuit being connected to the balanced resonance electrode.
Claim 12
Dependent Claim
29 words
The wireless communication apparatus according to claim 9 , wherein a DC signal is supplied to the radio-frequency integrated circuit via the intermediate electrode and the balanced resonance electrode.
Claim 13
Dependent Claim
35 words
The balance filter device according to claim 6 , wherein the balanced resonance electrode comprises a pair of resonance electrodes, and the intermediate electrode is positioned to face each of the pair of resonance electrodes.
Claim 14
Dependent Claim
106 words
A balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode composed of a pair of electrodes formed on a same dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; and an intermediate electrode disposed between the unbalanced resonance electrode and the ground (GND) electrode nearer to the unbalanced resonance electrode than to the balanced resonance electrode at a position closer to the said ground (GND) electrode than to the unbalanced resonance electrode.
Claim 15
Dependent Claim
106 words
A balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode composed of a pair of electrodes formed on a same dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; and an intermediate electrode disposed between the unbalanced resonance electrode and the ground (GND) electrode nearer to the unbalanced resonance electrode than to the balanced resonance electrode at a position closer to the said ground (GND) electrode than to the unbalanced resonance electrode.
Claim 16
Dependent Claim
25 words
The balun device according to claim 12 , wherein the balanced resonance electrode and the unbalanced resonance electrode overlap each other in the laminating direction.
Claim 17
Dependent Claim
39 words
A balance filter device comprising: a filter unit being formed by laminating a plurality of dielectric substrates; and the balun device of claim 12 , the filter unit being connected to the unbalanced resonance electrode of the balun unit.
Claim 18
Dependent Claim
114 words
A balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode formed on a dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; an intermediate electrode disposed between one of the unbalanced resonance electrode or the balanced electrode and the ground (GND) electrode near the one of the unbalanced resonance electrode or the balanced electrode wherein the intermediate electrode is formed larger than the ground (GND) electrode; and an inductor electrode disposed between the balanced resonance electrode and the intermediate electrode.
Claim 19
Dependent Claim
114 words
A balun device comprising: a pair of ground (GND) electrodes formed on respective dielectric layers; an unbalanced resonance electrode formed on a dielectric layer; a balanced resonance electrode formed on a dielectric layer, the unbalanced resonance electrode and the balanced resonance electrode being disposed between the pair of ground (GND) electrodes by laminating the dielectric layers; an intermediate electrode disposed between one of the unbalanced resonance electrode or the balanced electrode and the ground (GND) electrode near the one of the unbalanced resonance electrode or the balanced electrode wherein the intermediate electrode is formed larger than the ground (GND) electrode; and an inductor electrode disposed between the balanced resonance electrode and the intermediate electrode.
Claim 20
Dependent Claim
29 words
The balun device according to claim 15 , wherein the inductor electrode comprises a connecting pattern for the balanced resonance electrode and a connecting pattern for an external source.
Claim 21
Dependent Claim
38 words
A balance filter device comprising: a filter unit formed by laminating a plurality of dielectric substrates; and the balun device of claim 15 , the filter unit being connected to the unbalanced resonance electrode of the balun unit.
Claim 22
Dependent Claim
30 words
The balance filter device according to claim 17 , wherein the inductor electrode comprises a connecting pattern for the balanced resonance electrode and a connecting pattern for an external source.
Claim 23
Dependent Claim
20 words
A wireless communication apparatus comprising: an antenna; the balance filter device of claim 17 ; and a radio-frequency integrated circuit.
Claim 24
Dependent Claim
29 words
The wireless communication apparatus according to claim 19 , wherein a DC signal is supplied to the radio-frequency integrated circuit via the inductor electrode and the balanced resonance electrode.
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) | 2010-08-13 | 2011-02-12 | 2011-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-08-13 | 2015-02-12 | 2015-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-08-13 | 2019-02-12 | 2019-08-14 | $7700.00 | Window Closed / Lapsed |