Patent US3671971A successfully refreshed from Google Patents.
US3671971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
An hf superstructure discone antenna
Assignee: United States Department of the Navy
•
Filing: 1971-03-29
•
Granted: 1972-06-20
•
Expires: 1991-03-29
Abstract
Abstract A superstructure discone HF antenna comprising a vertically oriented ship''s superstructure and a discone antenna connected to and rigidly supported and mounted upon the top thereof to form a unitary radiating structure. By using a self-supporting superstructure as an integral component of the antenna, the number of possible HF parasitic radiators is reduced and limited topside space available on naval ships is more efficiently utilized.
Inventors
- 👤 Richard L Goodbody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:45
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
74 words
An HF antenna for use in limited space environments on naval ship decks comprIsing: a superstructure having a selectively predetermined configuration and an electrically conductive surface; discone antenna rigidly mounted and supported upon the top of said superstructure and being electrically connected to said superstructure by means of a shunt stub extending symmetrically through said discone antenna and a selectively predetermined length of said superstructure, said discone antenna having an electrically conductive surface also.
Claim 2
Dependent Claim
74 words
An HF antenna for use in limited space environments on naval ship decks comprIsing: a superstructure having a selectively predetermined configuration and an electrically conductive surface; discone antenna rigidly mounted and supported upon the top of said superstructure and being electrically connected to said superstructure by means of a shunt stub extending symmetrically through said discone antenna and a selectively predetermined length of said superstructure, said discone antenna having an electrically conductive surface also.
Claim 3
Dependent Claim
53 words
The apparatus of claim 1 wherein said discone antenna comprises: a conical portion mounted atop of said superstructure; an insulator portion at the top thereof, and a disc connected at the top of said insulator in a symmetrical manner with respect to said insulator, said insulator being symmetrically disposed about said shunt stub.
Claim 4
Dependent Claim
26 words
The apparatus of claim 1 wherein said shunt stub comprises: two hollow concentric cylinders symmetrically disposed within each other and about the center of said superstructure.
Claim 5
Dependent Claim
50 words
A dual-band HF antenna for use on decks of naval ships comprising: a superstructure having a predetermined geometrical configuration; a discone antenna mounted and rigidly connected to said superstructure by means of a shunt stub extending therebetween; and a conical antenna having a trussed mast mounted atop said discone antenna.
Claim 6
Dependent Claim
50 words
A dual-band HF antenna for use on decks of naval ships comprising: a superstructure having a predetermined geometrical configuration; a discone antenna mounted and rigidly connected to said superstructure by means of a shunt stub extending therebetween; and a conical antenna having a trussed mast mounted atop said discone antenna.
References Cited (Backward Citations)
US2704811A
Cited
US3189906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |