US3975737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radome-antenna structure
Assignee: United States Department of the Army
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Filing: 1975-11-07
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Granted: 1976-08-17
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Expires: 1995-11-07
Abstract
Abstract A radome-antenna structure includes a radome of lowloss dielectric materi the inner surface of which is plated with a copper shield having at least one aperture therethrough. A conformal radiating element is aligned with the aperture to direct radio frequency radiation through the aperture to the exterior of the radome. Generally, the radiating element consists of a dielectric substrate, which is surrounded by a copper shield. If necessary, a plurality of apertures and radiating elements may be included in a single radome. The radiating elements may be round or wedge shaped or may assume any advantageous configuration, as long as they conform to the geometry of the inner surface of the radome and do not leak radiation into the radome.
Inventors
- 👤 Howard S. Jones, Jr.
- 👤 Frank Reggia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/10; H01Q13/18; H01Q1/00; H01Q1/40; H01Q1/405; H01Q21/00; H01Q21/06; H01Q21/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A radome-antenna structure comprising: a. a radome of low-loss dielectric material having inner and outer surfaces, wherein said inner surface defines a chamber; b. a layer of electrically conductive material on said inner surface of said radome for forming a radiation shield thereover to exclude radiation from said chamber; c. at least one aperture through said electrically conductive material; d. at least one radiating element aligned with said aperture to direct radiation through said aperture, said element extending into said chamber, wherein said radiating element includes a dielectric substrate registered with said aperture and an electrically conductive shield enclosing said dielectric substrate, said shield abutting and conforming to said electrically conductive layer on the inner surface of said radome to contain said radiation therebetween.
Claim 2
Dependent Claim
124 words
A radome-antenna structure comprising: a. a radome of low-loss dielectric material having inner and outer surfaces, wherein said inner surface defines a chamber; b. a layer of electrically conductive material on said inner surface of said radome for forming a radiation shield thereover to exclude radiation from said chamber; c. at least one aperture through said electrically conductive material; d. at least one radiating element aligned with said aperture to direct radiation through said aperture, said element extending into said chamber, wherein said radiating element includes a dielectric substrate registered with said aperture and an electrically conductive shield enclosing said dielectric substrate, said shield abutting and conforming to said electrically conductive layer on the inner surface of said radome to contain said radiation therebetween.
Claim 3
Dependent Claim
27 words
The radome-antenna of claim 1, wherein there are a plurality of apertures through said electrically conductive material and at least one radiating element associated with each aperture.
Claim 4
Dependent Claim
26 words
The radome-antenna of claim 1, wherein the apertures are slots, and wherein the radiating elements are flat with thicknesses corresponding to the widths of the slots.
Claim 5
Dependent Claim
31 words
The radome-antenna of claim 1, wherein the radiating element is a disc and which is divided into a plurality of segments to provide a plurality of radiating segments in one plane.
Claim 6
Dependent Claim
12 words
The radome-antenna of claim 4, wherein the segments radiate with different characteristics.
Claim 7
Dependent Claim
18 words
The radome-antenna of claim 5, wherein the radiating elements are divided along lines defined by plated through holes.
Claim 8
Dependent Claim
53 words
The radome-antenna of claim 2, wherein the apertures are slots spaced from one another along the axial direction of the radome, so that both the slots and radiating elements are spaced, wherein each radiating element is powered by a separate cable, and wherein the radiation characteristics of each radiating element may be different.
Claim 9
Dependent Claim
18 words
The radome-antenna of claim 7, wherein the space between the radiating elements is used to accomodate electrical circuitry.
References Cited (Backward Citations)
US3914767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |