Patent US4063243A successfully refreshed from Google Patents.
US4063243A
Expired / Lapsed
US
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Conformal radar antenna
Assignee: United States Department of the Navy
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Filing: 1975-05-27
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Granted: 1977-12-13
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Expires: 1995-05-27
Abstract
Abstract A conformal electronically scanned antenna array system utilizing an inve Butler matrix in combination with directive antenna elements. The system provides a simple and inexpensive device for scanning an elemental array without the problems of output frequency shift or mutual coupling between antenna elements.
Inventors
- 👤 Wallace E. Anderson
- 👤 Albert D. Krall
- 👤 Albert M. Syeles
- 👤 Oscar J. Vansant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:35
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/24
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
73 words
A system for conformally scanning an array of antennas in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for condensing said series of first output signals to one of a series of second outputs; and, directive antenna elements connected to said series of second outputs.
Claim 2
Independent Claim
73 words
A system for conformally scanning an array of antennas in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for condensing said series of first output signals to one of a series of second outputs; and, directive antenna elements connected to said series of second outputs.
Claim 3
Dependent Claim
14 words
The device of claim 1 wherein said means for providing comprises a phase shifter.
Claim 4
Dependent Claim
13 words
The device of claim 1 wherein said matrix means comprises a Butler matrix.
Claim 5
Dependent Claim
13 words
The device of claim 2 wherein said matrix means comprises a Butler matrix.
Claim 6
Dependent Claim
101 words
An electronically scanned antenna array system for scanning a beam in space comprising: scource means for providing a coherent microwave electronic signal; means connected to said source means for providing a plurality of ouptput signals having a linear progressive phase shift between adjacent output signals; linear matrix means for passively encoding said plurality of output signals in accordance with the magnitude of said progressive linear phase shift to concentrate said plurality of output signals on at least one matrix output; and, directive antenna elements connected to each matrix output for scanning a beam in the direction of said directive antenna element.
Claim 7
Dependent Claim
101 words
An electronically scanned antenna array system for scanning a beam in space comprising: scource means for providing a coherent microwave electronic signal; means connected to said source means for providing a plurality of ouptput signals having a linear progressive phase shift between adjacent output signals; linear matrix means for passively encoding said plurality of output signals in accordance with the magnitude of said progressive linear phase shift to concentrate said plurality of output signals on at least one matrix output; and, directive antenna elements connected to each matrix output for scanning a beam in the direction of said directive antenna element.
Claim 8
Dependent Claim
15 words
The system of claim 5 wherein said linear matrix means conprises an inverted Butler matrix.
Claim 9
Dependent Claim
20 words
The system of claim 5 wherein said means for providing a plurality of output signals comprises a modified Huggins scanner.
Claim 10
Dependent Claim
104 words
An electronically scanned antenna array system for scanning a beam in space comprising: a plurality of directive antenna elements for receiving signals from a plurality of directions in space; passive matrix means for encoding each of said signals received from said directive antenna elements into a plurality of output signals having a linear progressive phase shift between adjacent output signals; means connected to said passive matrix means for detecting linear progressive phase shifts to produce a single phase detector output representative of the output of one or more of said plurality of directive antenna elements; and, means for receiving said single phase detector output.
Claim 11
Dependent Claim
104 words
An electronically scanned antenna array system for scanning a beam in space comprising: a plurality of directive antenna elements for receiving signals from a plurality of directions in space; passive matrix means for encoding each of said signals received from said directive antenna elements into a plurality of output signals having a linear progressive phase shift between adjacent output signals; means connected to said passive matrix means for detecting linear progressive phase shifts to produce a single phase detector output representative of the output of one or more of said plurality of directive antenna elements; and, means for receiving said single phase detector output.
Claim 12
Dependent Claim
15 words
The system of claim 8 wherein said passive matrix means comprises an inverted Butler matrix.
Claim 13
Independent Claim
80 words
A system for conformally scanning an array of antennae in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for condensing said series of first output signals to a selected one of a series of second outputs; and, directive antenna elements each connected to a different one of said series of second outputs.
Claim 14
Independent Claim
80 words
A system for conformally scanning an array of antennae in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for condensing said series of first output signals to a selected one of a series of second outputs; and, directive antenna elements each connected to a different one of said series of second outputs.
Claim 15
Dependent Claim
14 words
The device of claim 10 wherein said means for providing comprises a phase shifter.
Claim 16
Dependent Claim
13 words
The device of claim 10 wherein said matrix means comprises a Butler matrix.
Claim 17
Dependent Claim
13 words
The device of claim 11 wherein said matrix means comprises a Butler matrix.
Claim 18
Dependent Claim
102 words
An electronically scanned antenna array system for scanning a beam in space comprising: source means for providing a coherent microwave electronic signal; means connected to said source means for providing a plurality of output signals having a linear progressive phase shift between adjacent output signals; linear matrix means for passively encoding said plurality of output signals in accordance with the magnitude of said progressive linear phase shift to concentrate said plurality of output signals on at least one matrix output; and, directive antenna elements connected to each said matrix output for scanning a beam in the direction of said directive antenna element.
Claim 19
Dependent Claim
102 words
An electronically scanned antenna array system for scanning a beam in space comprising: source means for providing a coherent microwave electronic signal; means connected to said source means for providing a plurality of output signals having a linear progressive phase shift between adjacent output signals; linear matrix means for passively encoding said plurality of output signals in accordance with the magnitude of said progressive linear phase shift to concentrate said plurality of output signals on at least one matrix output; and, directive antenna elements connected to each said matrix output for scanning a beam in the direction of said directive antenna element.
Claim 20
Dependent Claim
15 words
The system of claim 14 wherein said linear matrix means comprises an inverted Butler matrix.
Claim 21
Dependent Claim
20 words
The system of claim 14 wherein said means for providing a plurality of output signals comprises a modified Huggins scanner.
Claim 22
Independent Claim
81 words
A system for conformally scanning an array of antennae in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for condensing said series of first output signals to a sequentially selected one of a series of second outputs; and, directive antenna elements each connected to a different one of said series of second outputs.
Claim 23
Independent Claim
81 words
A system for conformally scanning an array of antennae in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for condensing said series of first output signals to a sequentially selected one of a series of second outputs; and, directive antenna elements each connected to a different one of said series of second outputs.
Claim 24
Independent Claim
90 words
A system for conformally scanning an array of antennae in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for passively encoding said series of first output signals in accordance with the magnitude of said progressive linear phase shift to concentrate said first output signals on at least one matrix output; and, directive antenna elements each connected to a different said matrix output.
Claim 25
Independent Claim
90 words
A system for conformally scanning an array of antennae in space comprising: a coherent signal source; means for providing a series of first output signals from said coherent signal source on a series of outputs having a progressive linear phase shift between adjacent outputs; matrix means for passively encoding said series of first output signals in accordance with the magnitude of said progressive linear phase shift to concentrate said first output signals on at least one matrix output; and, directive antenna elements each connected to a different said matrix output.
References Cited (Backward Citations)
US3276018A
Cited
US3295134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |