US3740755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave antenna with radome
Assignee: SYS RESOURCES CORP
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Filing: 1972-01-12
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Granted: 1973-06-19
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Expires: 1992-01-12
Abstract
Abstract A microwave antenna having a parabolic reflector with a confocal parabolic radome. The coincident foci of the reflector and radome cause reflections from the latter to be incident upon the reflector in the same direction as the energy directly incident thereon from the feed. The antenna is integrally formed in nestable segments each comprising portions of the reflector, the radome and any interconnecting shroud.
Inventors
- 👤 R Grenzeback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:42
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/42; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
61 words
A microwave antenna having, in combination, a reflector having a parabolic inner electrically conductive surface, a microwave feed in position to radiate energy to and from the focus of said electrically conductive surface, and a radome having a parabolic inner electrically nonconductive surface connected with the reflector in a position with its focus coincident with that of said electrically conductive surface.
Claim 2
Dependent Claim
61 words
A microwave antenna having, in combination, a reflector having a parabolic inner electrically conductive surface, a microwave feed in position to radiate energy to and from the focus of said electrically conductive surface, and a radome having a parabolic inner electrically nonconductive surface connected with the reflector in a position with its focus coincident with that of said electrically conductive surface.
Claim 3
Dependent Claim
23 words
An antenna according to claim 1, in which the reflector and radome are dish shaped and connected by means of their peripheral rims.
Claim 4
Dependent Claim
20 words
An antenna according to claim 2, including a shroud spacing and interconnecting the reflector and radome at their peripheral rims.
Claim 5
Dependent Claim
34 words
An antenna according to claim 2, in which said coincident foci are spaced from the plane defined by the rim of the reflector and on the side of said plane opposite to the reflector.
Claim 6
Dependent Claim
23 words
An antenna according to claim 2, in which said coincident foci are located in the plane defined by the rim of the reflector.
Claim 7
Dependent Claim
34 words
An antenna according to claim 3, in which said coincident foci are spaced from the plane defined by the rim of the reflector and on the side or said plane opposite to the reflector.
Claim 8
Dependent Claim
44 words
A microwave antenna having, in combination, a plurality of segments, each segment including a fragmental parabolic reflector portion and a fragmental radome portion, said portions of each segment being integrally formed, said segments having provision for interconnection at their periPhery to form an enclosure.
Claim 9
Dependent Claim
44 words
A microwave antenna having, in combination, a plurality of segments, each segment including a fragmental parabolic reflector portion and a fragmental radome portion, said portions of each segment being integrally formed, said segments having provision for interconnection at their periPhery to form an enclosure.
Claim 10
Dependent Claim
16 words
An antenna according to claim 7, in which the radome portion is of fragmental parabolic shape.
Claim 11
Dependent Claim
18 words
An antenna according to claim 8, in which the foci of the reflector and radome portions are coincident.
Claim 12
Dependent Claim
25 words
An antenna according to claim 7, in which each segment includes a fragmental shroud portion integrally formed with and interconnecting the reflector and radome portions.
Claim 13
Dependent Claim
26 words
An antenna according to claim 10, which is electrically continuous at the line of intersection between the shroud and the parabolic periphery of the reflector portion.
Claim 14
Dependent Claim
20 words
An antenna according to claim 11, in which the surfaces of the reflector and shroud portions have electrically conducting surfaces.
Claim 15
Dependent Claim
15 words
An antenna according to claim 10, in which the shroud portion has an undulating surface.
Claim 16
Dependent Claim
23 words
An antenna according to claim 9, including a feed supported for radiation reciprocally in relation to a point located at said coincident foci.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |