Patent US4129866A successfully refreshed from Google Patents.
US4129866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of scanning a radar antenna to effect improved radar operation
Assignee: Individual
•
Filing: 1977-03-21
•
Granted: 1978-12-12
•
Expires: 1997-03-21
Abstract
Abstract In one implementation of the inventive method an aircraft with an antenna mounted thereon is compelled to follow a sinuous path. The antenna normally provide 120° coverage on either side of the aircraft. Full 360° coverage is provided by the same antenna as the aircraft traverses the predetermined sinuous path.
Inventors
- 👤 Joseph Turco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:08
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
A method of enhancing the scan capability of a radar afixed to an aircraft comprising: compelling the aircraft to follow a predetermined sinusoidal path; and synchronizing the scan angle of the radar to the predetermined path to at least assure that the radar looks in a first direction along the average heading of the aircraft when the aircraft is pointing a predetermined angle to the right of its average heading and to at least assure that the radar looks in a second direction, opposite to the first direction, along the average heading of the aircraft when the aircraft is pointing a predetermined angle to the left of its average heading.
Claim 2
Independent Claim
110 words
A method of enhancing the scan capability of a radar afixed to an aircraft comprising: compelling the aircraft to follow a predetermined sinusoidal path; and synchronizing the scan angle of the radar to the predetermined path to at least assure that the radar looks in a first direction along the average heading of the aircraft when the aircraft is pointing a predetermined angle to the right of its average heading and to at least assure that the radar looks in a second direction, opposite to the first direction, along the average heading of the aircraft when the aircraft is pointing a predetermined angle to the left of its average heading.
Claim 3
Dependent Claim
62 words
A method according to claim 1 wherein the predetermined sinusoidal path is described as θ = A sin m t and the scan angle of the radar is described as δ = Δ sin m t where A is the maximum excursion from the average heading of the aircraft, Δ is the maximum scan angle and m is a predetermined arbitrary constant.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |