US3696433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant slot antenna structure
Assignee: TELEDYNE RYAN AERONAUTICAL CO
•
Filing: 1970-07-17
•
Granted: 1972-10-03
•
Expires: 1990-07-17
Abstract
Abstract A resonant slot antenna composed of one or more elongated coaxial type radiating elements, each having an inner conductor supported within an outer conductor, the outer conductor having longitudinally spaced slots which are shaped to provide phase reversal between slots and spaced to avoid mutual coupling. This permits a coaxial or strip line antenna to be made with the desirable characteristics of a waveguide type. The antenna is particularly adaptable to construction by printed circuit techniques, with the slots and conductor elements etched in conductive plating on dielectric supporting material, making it possible to construct unitary arrays of multiple elements.
Inventors
- 👤 Derling G Killion
- 👤 Kent B Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:39
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20; H01Q13/22; H01Q13/10; H01Q13/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A resonant slot antenna structure comprising, at least one elongated antenna element having a longitudinal inner conductor, a longitudinal outer conductor at least partially surrounding said inner conductor, supporting means for holding said inner conductor in spaced relation to and coextensive with said outer conductor, longitudinally spaced radiating slots in said outer conductor, each slot having at least one longitudinally extending arm and a transverse coupling portion at one end of the arm, said support means is a dielectric material, said slots are substantially Z shaped, with a pair of opposed arms interconnected by said coupling portions, and alternate slots have the arms thereof transposed.
Claim 2
Dependent Claim
105 words
A resonant slot antenna structure comprising, at least one elongated antenna element having a longitudinal inner conductor, a longitudinal outer conductor at least partially surrounding said inner conductor, supporting means for holding said inner conductor in spaced relation to and coextensive with said outer conductor, longitudinally spaced radiating slots in said outer conductor, each slot having at least one longitudinally extending arm and a transverse coupling portion at one end of the arm, said support means is a dielectric material, said slots are substantially Z shaped, with a pair of opposed arms interconnected by said coupling portions, and alternate slots have the arms thereof transposed.
Claim 3
Dependent Claim
98 words
A resonant slot antenna structure comprising, at least one elongated antenna element having a longitudinal inner conductor, a longitudinal outer conductor at least partially surrounding said inner conductor, supporting means for holding said inner conductor in spaced relation to and coextensive with said outer conductor, longitudinally spaced radiating slots in said outer conductor, each slot having at least one longitudinally extending arm and a transverse coupling portion at one end of the arm, said support means is a dielectric material, and said slots are substantially L shaped, with the arm thereof adjacent one side of the antenna element.
Claim 4
Dependent Claim
98 words
A resonant slot antenna structure comprising, at least one elongated antenna element having a longitudinal inner conductor, a longitudinal outer conductor at least partially surrounding said inner conductor, supporting means for holding said inner conductor in spaced relation to and coextensive with said outer conductor, longitudinally spaced radiating slots in said outer conductor, each slot having at least one longitudinally extending arm and a transverse coupling portion at one end of the arm, said support means is a dielectric material, and said slots are substantially L shaped, with the arm thereof adjacent one side of the antenna element.
Claim 5
Dependent Claim
131 words
A resonant slot antenna structure comprising, at least one elongated antenna element having a longitudinal inner conductor, a longitudinal outer conductor at least partially surrounding said inner conductor, supporting means for holding said inner conductor in spaced relation to and coextensive with said outer conductor, longitudinally spaced radiating slots in said outer conductor, each slot having at least one longitudinally extending arm and a transverse coupling portion at one end of the arm, said support means is a dielectric material, and a feed element having an array of antenna elements extending therefrom in spaced parallel relation, an inner feed conductor in said feed element coupled to the inner conductor of each antenna element, the slots in alternate antenna elements having their arms transposed relatived to the slots in adjacent antenna elements.
Claim 6
Dependent Claim
131 words
A resonant slot antenna structure comprising, at least one elongated antenna element having a longitudinal inner conductor, a longitudinal outer conductor at least partially surrounding said inner conductor, supporting means for holding said inner conductor in spaced relation to and coextensive with said outer conductor, longitudinally spaced radiating slots in said outer conductor, each slot having at least one longitudinally extending arm and a transverse coupling portion at one end of the arm, said support means is a dielectric material, and a feed element having an array of antenna elements extending therefrom in spaced parallel relation, an inner feed conductor in said feed element coupled to the inner conductor of each antenna element, the slots in alternate antenna elements having their arms transposed relatived to the slots in adjacent antenna elements.
Claim 7
Dependent Claim
24 words
An antenna structure according to claim 2, wherein alternate slots are transposed with the arms thereof adjacent the other side of the antenna element.
Claim 8
Dependent Claim
23 words
An antenna structure according to claim 3, wherein said dielectric material is a unitary structural support in said feed element and antenna elements.
Claim 9
Dependent Claim
23 words
An antenna structure according to claim 5, wherein said outer conductor is a conductive plating on the outer surfaces of said dielectric material.
Claim 10
Dependent Claim
45 words
An antenna structure according to claim 5, wherein said dielectric material is in two similar array shaped portions separated on a common flat plane of the antenna elements, said feed conductor and inner conductors comprising a unitary plated array on one of said dielectric portions.
Claim 11
Dependent Claim
64 words
An antenna structure according to claim 3, wherein said dielectric material is a unitary structural supporting member in and between said feed element and antenna elements, said dielectric material having elongated slotted openings therethrough, between and parallel to said antenna elements, said outer conductor comprising a conductive plating on the outer surfaces of the dielectric material and on the surfaces of said slotted openings.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |