US5270722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patch-type microwave antenna
Assignee: Thales SA
•
Filing: 1991-12-19
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Granted: 1993-12-14
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Expires: 2011-12-19
Abstract
Abstract A radiating element has two superimposed patches separated by a dielectric layer. At least the lower patch has two opposite concave sides to allow space for the feeder conductor to pass to the other patch without increasing the overall dimensions of the element.
Inventors
- 👤 Xavier Delestre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:36
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/0407; H01Q9/0414
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
82 words
A microwave radiating element comprising: a first patch having two opposite sides which are concave; a first feeder connected to the first patch; a second patch located above the first patch, the second patch having two opposite sides which are concave, the two opposite concave sides of the second patch not being located above the two opposite concave sides of the first patch; a second feeder connected to the second patch; and means for separating the first patch from the second patch.
Claim 2
Dependent Claim
82 words
A microwave radiating element comprising: a first patch having two opposite sides which are concave; a first feeder connected to the first patch; a second patch located above the first patch, the second patch having two opposite sides which are concave, the two opposite concave sides of the second patch not being located above the two opposite concave sides of the first patch; a second feeder connected to the second patch; and means for separating the first patch from the second patch.
Claim 3
Dependent Claim
24 words
The microwave radiating element according to claim 1, wherein the means for separating the first patch from the second patch comprises an air film.
Claim 4
Dependent Claim
26 words
The microwave radiating element according to claim 1, wherein the means for separating the first patch from the second patch comprises a layer of dielectric material.
Claim 5
Dependent Claim
17 words
The microwave radiating element according to claim 1, wherein the first and second feeders are coaxial lines.
Claim 6
Dependent Claim
32 words
The microwave radiating element according to claim 1, wherein the first and second feeders are each connected to a center of one of straight sides of the respective first and second patches.
Claim 7
Dependent Claim
16 words
The microwave radiating element according to claim 1, wherein the first and second feeders are microstrips.
Claim 8
Dependent Claim
20 words
The microwave radiating element according to claim 1, further comprising at least one further patch located above the second patch.
Claim 9
Dependent Claim
86 words
A microwave radiating element comprising: a first patch having two opposite sides which are concave and two opposite sides which are straight; a first feeder connected to the first patch; a second patch located above the first patch and having two opposite sides which are concave and two opposite sides which are straight as in the first patch, and being rotated 90° relative to the first patch; a second feeder connected to the second patch; and means for separating the first patch from the second patch.
Claim 10
Dependent Claim
86 words
A microwave radiating element comprising: a first patch having two opposite sides which are concave and two opposite sides which are straight; a first feeder connected to the first patch; a second patch located above the first patch and having two opposite sides which are concave and two opposite sides which are straight as in the first patch, and being rotated 90° relative to the first patch; a second feeder connected to the second patch; and means for separating the first patch from the second patch.
Claim 11
Dependent Claim
24 words
The microwave radiating element according to claim 8, wherein the means for separating the first patch from the second patch comprises an air film.
Claim 12
Dependent Claim
26 words
The microwave radiating element according to claim 8, wherein the means for separating the first patch from the second patch comprises a layer of dielectric material.
Claim 13
Dependent Claim
17 words
The microwave radiating element according to claim 8, wherein the first and second feeders are coaxial lines.
Claim 14
Dependent Claim
33 words
The microwave radiating element according to claim 8, wherein the first and second feeders are each connected to a center of one of the straight sides of the respective first and second patches.
Claim 15
Dependent Claim
16 words
The microwave radiating element according to claim 8, wherein the first and second feeders are microstrips.
Claim 16
Dependent Claim
20 words
The microwave radiating element according to claim 8, further comprising at least one further patch located above the second patch.
References Cited (Backward Citations)
US4089003A
Cited
US4918458A
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US4410891A
Cited
JPS5829203A
Cited
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JPS6215902A
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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) | 1996-12-13 | 1997-06-14 | 1997-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-13 | 2001-06-14 | 2001-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-13 | 2005-06-14 | 2005-12-14 | $7700.00 | Window Closed / Lapsed |