US5867126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-mount-type antenna and communication equipment using same
Assignee: Murata Manufacturing Co Ltd
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Filing: 1997-02-12
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Granted: 1999-02-02
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Expires: 2017-02-12
Abstract
Abstract A current-inducing-type surface-mount-type antenna which is short in length and thin in thickness and which can be formed into a small size and communication equipment having the same mounted therein. A radiation electrode substantially in the shape of a letter L or a sideways U and a power supply electrode are formed on the surface of a base made of a dielectric or a magnetic substance with a gap therebetween. A short-circuit end of the radiation electrode and the power supply electrode are connected to a grounding terminal and a power supply terminal, respectively, which are formed on an end surface of the base.
Inventors
- 👤 Kazunari Kawahata
- 👤 Ken Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:34
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/005; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/243; H01Q1/36; H01Q1/38; H01Q9/00; H01Q9/04; H01Q9/0407
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
125 words
A current-inducing-type surface-mount-type antenna comprising a substantially U-shaped radiation electrode having a first open end and a second short-circuited end, the radiation electrode extending over one main surface and at least one end surface of a base comprising at least one of a dielectric material and a magnetic material, a power supply electrode disposed on one main surface of said base, a gap being provided between said power supply electrode and said radiation electrode, said radiation electrode and said power supply electrode being connected respectively to a grounding terminal and a power supply terminal disposed on another end surface of said base and wherein the U-shaped radiation electrode has the portion of the U-shape between the legs of the U-shape disposed on the end surface.
Claim 2
Dependent Claim
125 words
A current-inducing-type surface-mount-type antenna comprising a substantially U-shaped radiation electrode having a first open end and a second short-circuited end, the radiation electrode extending over one main surface and at least one end surface of a base comprising at least one of a dielectric material and a magnetic material, a power supply electrode disposed on one main surface of said base, a gap being provided between said power supply electrode and said radiation electrode, said radiation electrode and said power supply electrode being connected respectively to a grounding terminal and a power supply terminal disposed on another end surface of said base and wherein the U-shaped radiation electrode has the portion of the U-shape between the legs of the U-shape disposed on the end surface.
Claim 3
Dependent Claim
28 words
The current-inducing-type surface-mount-type antenna of claim 1, wherein the power supply electrode and the radiation electrode are disposed on said one main surface with the gap disposed therebetween.
Claim 4
Dependent Claim
25 words
The current-inducing-type surface-mount-type antenna of claim 1, wherein the radiation electrode has at least a portion of the U-shaped radiation electrode comprising a meandering shape.
Claim 5
Dependent Claim
25 words
The current-inducing-type surface-mount-type antenna of claim 1, wherein a capacitance is provided between the open end of the radiation electrode and the power supply electrode.
Claim 6
Dependent Claim
21 words
The current-inducing-type surface-mount-type antenna of claim 1, wherein both legs of the U-shaped radiation electrode are disposed on the main surface.
Claim 7
Dependent Claim
18 words
The current-inducing-type surface-mount-type antenna of claim 1, wherein both legs of the radiation electrode have a meandering shape.
Claim 8
Dependent Claim
156 words
Communication equipment comprising at least one of an electromagnetic frequency transmitter and an electromagnetic frequency receiver, an antenna connected to at least one of the transmitter and receiver, the antenna comprising a surface-mount-type antenna comprising a substantially U-shape radiation electrode having a first open end and a second short-circuited end, the radiation electrode extending over one main surface and at least one end surface of a base comprising at least one of a dielectric material and a magnetic material, a power supply electrode disposed on one main surface of said base, a gap being provided between said power supply electrode and said radiation electrode, said radiation electrode and said power supply electrode being connected respectively to a grounding terminal and a power supply terminal disposed on another end surface of said base and wherein the U-shape radiation electrode has the portion of the U-shape between the legs of the U-shape is disposed on the end surface.
Claim 9
Dependent Claim
156 words
Communication equipment comprising at least one of an electromagnetic frequency transmitter and an electromagnetic frequency receiver, an antenna connected to at least one of the transmitter and receiver, the antenna comprising a surface-mount-type antenna comprising a substantially U-shape radiation electrode having a first open end and a second short-circuited end, the radiation electrode extending over one main surface and at least one end surface of a base comprising at least one of a dielectric material and a magnetic material, a power supply electrode disposed on one main surface of said base, a gap being provided between said power supply electrode and said radiation electrode, said radiation electrode and said power supply electrode being connected respectively to a grounding terminal and a power supply terminal disposed on another end surface of said base and wherein the U-shape radiation electrode has the portion of the U-shape between the legs of the U-shape is disposed on the end surface.
Claim 10
Dependent Claim
27 words
The communication equipment of claim 7, wherein the power supply electrode and the radiation electrode are disposed on said one main surface with the gap disposed therebetween.
Claim 11
Dependent Claim
23 words
The communication equipment of claim 7, wherein the radiation electrode has at least a portion of the U-shaped electrode comprising a meandering shape.
Claim 12
Dependent Claim
24 words
The communication equipment of claim 7, wherein a capacitance is provided between the open end of the radiation electrode and the power supply electrode.
Claim 13
Dependent Claim
20 words
The communication equipment of claim 7, wherein both legs of the U-shaped radiation electrode are disposed on the main surface.
Claim 14
Dependent Claim
17 words
The communication equipment of claim 7, wherein both legs of the radiation electrode have a meandering shape.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-01 | 2002-08-03 | 2003-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-01 | 2006-08-03 | 2007-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-01 | 2010-08-03 | 2011-02-02 | $7700.00 | Window Closed / Lapsed |