US4433333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmitter peak power efficient pseudo-blink arm decoy system
Assignee: United States Department of the Army
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Filing: 1981-06-01
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Granted: 1984-02-21
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Expires: 2001-06-01
Abstract
Abstract A technique using sector antennas on a plurality of decoy transmitters suchhat each antenna only has to cover a portion of the required azimuth coverage but the total azimuth is covered at all times by all the decoy transmitters. Switching between sectors of the various decoy transmitters is done to provide pseudo-blinking decoy field.
Inventors
- 👤 David V. Manoogian
- 👤 Bernard H. Labitt
- 👤 Joseph R. Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:39
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
129 words
A method for simulating false locations of a radar transmitter comprising the steps of locating a plurality of decoy transmitters spaciously from each other and said radar transmitter; providing said decoy transmitters with segmented antennas so that each antenna will cover a different portion of a predetermined required azimuth and elevation coverage area when using a selected portion of its antenna; switching means associated with said decoy transmitters so as to sequentially switch antenna segments which are transmitted on said decoy transmitter transmitters so that each decoy sequentially covers a different portion of said required coverage area in a cyclical manner; and selecting said antenna segments of the decoy transmitters such that the entire required azimuth and elevation coverage area is radiated by the decoy transmitters at all times.
Claim 2
Independent Claim
129 words
A method for simulating false locations of a radar transmitter comprising the steps of locating a plurality of decoy transmitters spaciously from each other and said radar transmitter; providing said decoy transmitters with segmented antennas so that each antenna will cover a different portion of a predetermined required azimuth and elevation coverage area when using a selected portion of its antenna; switching means associated with said decoy transmitters so as to sequentially switch antenna segments which are transmitted on said decoy transmitter transmitters so that each decoy sequentially covers a different portion of said required coverage area in a cyclical manner; and selecting said antenna segments of the decoy transmitters such that the entire required azimuth and elevation coverage area is radiated by the decoy transmitters at all times.
Claim 3
Dependent Claim
43 words
A method as set forth in claim 1 further comprising the step of selecting the segments of the antennas such that each segment will cover the full elevation of the coverage area and will cover only a portion of the azimuth coverage area.
Claim 4
Dependent Claim
31 words
A method as set forth in claim 2 further comprising the step of providing at least one standby decoy transmitter which can be switched in place of any non-operating decoy transmitter.
Claim 5
Dependent Claim
41 words
A method as set forth in claim 2 or 3 further comprising the step of providing more than two decoy transmitters, each of which covers with one portion of the segmented antenna less than one half of the required azimuth area.
References Cited (Backward Citations)
US3806930A
Cited
US4347513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |