US6028567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna for a mobile station operating in two frequency ranges
Assignee: RPX Corp
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Filing: 1998-12-08
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Granted: 2000-02-22
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Expires: 2018-12-08
Abstract
Abstract The invention comprises an antenna structure particularly suitable for mobile stations operating on two frequency ranges. As a supporting component and also as component determining the electrical characteristics the antenna includes a dielectric plate (21). On one surface of the dielectric plate there is a radiating element (22) with a meander form, and on the opposite support of the dielectric plate there is a planar radiating element (23). The operation on two frequency ranges is based on the fact that the structure has two resonance frequencies, which are relatively far from each other. The strips are further relatively wide, due to which the antenna operates satisfactorily in different positions and in the vicinity of objects. The parasitic element can further have a gap operating as a separate radiator, whereby the antenna operates on three frequency ranges. The antenna according to the invention is flat, and therefore it can be fixed to the back wall of a mobile station, and the distance to the user's head is as large as possible.
Inventors
- 👤 Saku Lahti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:42
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/42; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/36; H01Q1/38; H01Q5/00; H01Q5/30; H01Q5/307; H01Q5/342; H01Q5/357; H01Q5/364; H01Q5/371; H01Q5/378; H01Q5/392; H01Q9/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
An antenna which comprises a first element connected to its feed line and at least one parasitic element characterized in that said first element is a meander element, said parasitic element is a planar conductor area, and the supporting structure for the meander and parasitic elements is a dielectric plate, where said dielectric plate is the dielectric part of a printed circuit board, said meander element is a conductor area on the first surface of said printed circuit board and said parasitic element is a conductor area on the second, opposite surface of said printed circuit board, the antenna having a first operating frequency band and a second operating frequency band, the second operating frequency band being higher in frequency than the first operating frequency band, said parasitic element being adapted to widen at least the second operating frequency band.
Claim 2
Dependent Claim
140 words
An antenna which comprises a first element connected to its feed line and at least one parasitic element characterized in that said first element is a meander element, said parasitic element is a planar conductor area, and the supporting structure for the meander and parasitic elements is a dielectric plate, where said dielectric plate is the dielectric part of a printed circuit board, said meander element is a conductor area on the first surface of said printed circuit board and said parasitic element is a conductor area on the second, opposite surface of said printed circuit board, the antenna having a first operating frequency band and a second operating frequency band, the second operating frequency band being higher in frequency than the first operating frequency band, said parasitic element being adapted to widen at least the second operating frequency band.
Claim 3
Dependent Claim
36 words
A structure according to claim 1, characterised in that the width of the meander element in a first point in the height direction is different from its width in a second point in the height direction.
Claim 4
Dependent Claim
24 words
A structure according to claim 1, characterised in that the height of the parasitic element is less than the height of the meander element.
Claim 5
Dependent Claim
36 words
A structure according to claim 1, characterised in that the width of the parasitic element in a first point in the height direction is different from the width in a second point in the height direction.
Claim 6
Dependent Claim
16 words
A structure according to claim 1, characterised in that the parasitic element has a radiating gap.
Claim 7
Dependent Claim
39 words
A structure according to claim 1 which comprises a first parasitic element and a second parasitic element, characterised in that said second parasitic element is conductor area on the same side of the dielectric plate as the meander element.
Claim 8
Dependent Claim
158 words
A mobile station having an antenna structure which comprises a feed line, a first element connected to the feed line and at least one parasitic element, characterized in that said first element is a meander element, said parasitic element is a planar conductor area, and in that the antenna structure further comprises a supporting structure for the meander and parasitic elements, which supporting structure is a dielectric plate, where said dielectric plate is the dielectric part of a printed circuit board, said meander element is a conductor area on the first surface of said printed circuit board and said parasitic element is a conductor area on the second, opposite surface of said printed circuit board, the antenna having a first operating frequency band and a second operating frequency band, the second operating frequency band being higher in frequency than the first operating frequency band, said parasitic element being adapted to widen at least the second operating frequency band.
Claim 9
Dependent Claim
158 words
A mobile station having an antenna structure which comprises a feed line, a first element connected to the feed line and at least one parasitic element, characterized in that said first element is a meander element, said parasitic element is a planar conductor area, and in that the antenna structure further comprises a supporting structure for the meander and parasitic elements, which supporting structure is a dielectric plate, where said dielectric plate is the dielectric part of a printed circuit board, said meander element is a conductor area on the first surface of said printed circuit board and said parasitic element is a conductor area on the second, opposite surface of said printed circuit board, the antenna having a first operating frequency band and a second operating frequency band, the second operating frequency band being higher in frequency than the first operating frequency band, said parasitic element being adapted to widen at least the second operating frequency band.
Claim 10
Dependent Claim
180 words
An antenna having a feed line, a first element connected to the feed line, and at least one parasitic element characterized in that said first element is a meander element, said parasitic element is a planar conductor area, and the width of the meander element at a first location in the height direction is different from its width at a second location in the height direction, and in that the antenna structure further comprises a supporting structure for the meander and parasitic elements, said supporting structure being a dielectric plate, where said dielectric plate is the dielectric part of a printed circuit board, said meander element is a conductor area on the first surface of said printed circuit board and said parasitic element is a conductor area on the second, opposite surface of said printed circuit board, the antenna having a first operating frequency band and a second operating frequency band, the second operating frequency band being higher in frequency than the first operating frequency band, said parasitic element being adapted to widen at least the second operating frequency band.
Claim 11
Dependent Claim
180 words
An antenna having a feed line, a first element connected to the feed line, and at least one parasitic element characterized in that said first element is a meander element, said parasitic element is a planar conductor area, and the width of the meander element at a first location in the height direction is different from its width at a second location in the height direction, and in that the antenna structure further comprises a supporting structure for the meander and parasitic elements, said supporting structure being a dielectric plate, where said dielectric plate is the dielectric part of a printed circuit board, said meander element is a conductor area on the first surface of said printed circuit board and said parasitic element is a conductor area on the second, opposite surface of said printed circuit board, the antenna having a first operating frequency band and a second operating frequency band, the second operating frequency band being higher in frequency than the first operating frequency band, said parasitic element being adapted to widen at least the second operating frequency band.
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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) | 2003-02-21 | 2003-08-23 | 2004-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-21 | 2007-08-23 | 2008-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-21 | 2011-08-23 | 2012-02-22 | $7700.00 | Window Closed / Lapsed |