Patent US4450449A successfully refreshed from Google Patents.
US4450449A
Expired / Lapsed
US
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Patch array antenna
Assignee: Honeywell Inc
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Filing: 1982-02-25
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Granted: 1984-05-22
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Expires: 2002-02-25
Abstract
Abstract An antenna comprising, in combination: a first nonconductive substrate; a conductive ground plane on one surface of the substrate; a plurality of conductive patches mutually spaced in an array extending over the other surface of the substrate; conductors for energizing said patches to comprise a first antenna with said ground plane; a second nonconductive substrate overlying said plurality of patches; a second plurality of conductive patches mutually spaced in a second array extending over the outer surface of the second substrate, and positioned in the spaces between the patches of the first array; and conductors for energizing the second plurality of patches to comprise a second antenna with said ground plane.
Inventors
- 👤 Harold S. Jewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:20
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/061; H01Q21/065; H01Q5/00; H01Q5/40; H01Q5/42; H01Q9/00; H01Q9/04; H01Q9/0407
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
113 words
An antenna comprising, in combination: a first nonconductive substrate; a conductive ground plane on one surface of said substrate; a plurality of conductive patches mutually spaced in an array extending over the other surface of said substrate; means for conductively energizing said patches to comprise a first antenna with said ground plane; a second nonconductive substrate overlying said plurality of patches; a second plurality of conductive patches mutually spaced in a second array extending over the outer surface of said second substrate, and positioned in the spaces between the patches of said first array; and means for conductively energizing said second plurality of patches to comprise a second antenna with said ground plane.
Claim 2
Dependent Claim
113 words
An antenna comprising, in combination: a first nonconductive substrate; a conductive ground plane on one surface of said substrate; a plurality of conductive patches mutually spaced in an array extending over the other surface of said substrate; means for conductively energizing said patches to comprise a first antenna with said ground plane; a second nonconductive substrate overlying said plurality of patches; a second plurality of conductive patches mutually spaced in a second array extending over the outer surface of said second substrate, and positioned in the spaces between the patches of said first array; and means for conductively energizing said second plurality of patches to comprise a second antenna with said ground plane.
Claim 3
Dependent Claim
22 words
An antenna according to claim 1 in which said second substrate includes apertures in line with the patches of said first array.
Claim 4
Dependent Claim
30 words
An antenna according to claim 1 in which said second substrate includes a ground plane comprising a further plurality of conductive patches aligned with the pathces of said second array.
Claim 5
Dependent Claim
17 words
An antenna according to claim 1 in which said arrays are fed with inputs of different polarizations.
Claim 6
Dependent Claim
17 words
An antenna according to claim 1 in which said arrays are energized with inputs of different frequencies.
Claim 7
Dependent Claim
15 words
An antenna according to claim 1 in which said substrates are of the same thickness.
References Cited (Backward Citations)
US3757342A
Cited
US4101895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |