US3594802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omnidirectional antenna having circumferentially spaced radiators with orthogonal polarization
Assignee: Bolkow GmbH
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Filing: 1968-09-20
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Granted: 1971-07-20
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Expires: 1988-09-20
Abstract
Abstract In an omnidirectional antenna of the type including plural individual radiators arranged around the circumferential periphery of a preferably cylindrical body whose diameter is large relative to the operating wave length of the antenna, the respective polarization directions of peripherally adjacent individual radiators are perpendicular to each other. The radiation patterns of the individual radiators overlap in the range of their respective half powers (3db-points). The antenna has a circular radiation characteristic formed by simple addition of the radiation patterns of the individual radiators.
Inventors
- 👤 Karl Koob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:00
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/20; Y; Y10; Y10S; Y10S343/00; Y10S343/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
In an omnidirectional antenna of the type including plural individual radiators arranged on and around the peripheral surface of a shaped aerodynamic vehicle whose diameter is a large multiple of the operating wave length of the antenna, the improvement comprising an even number of individual radiators, with the respective polarization directions of the radiation of peripherally adjacent individual radiators being perpendicular to each otHer and the respective radiation patterns of the individual radiators overlapping each other in the range of their respective half powers or 3 db.-points.
Claim 2
Dependent Claim
87 words
In an omnidirectional antenna of the type including plural individual radiators arranged on and around the peripheral surface of a shaped aerodynamic vehicle whose diameter is a large multiple of the operating wave length of the antenna, the improvement comprising an even number of individual radiators, with the respective polarization directions of the radiation of peripherally adjacent individual radiators being perpendicular to each otHer and the respective radiation patterns of the individual radiators overlapping each other in the range of their respective half powers or 3 db.-points.
Claim 3
Dependent Claim
36 words
In an omnidirectional antenna, the improvement claimed in claim 1, in which the individual radiators have elliptic polarizations and the respective elliptic polarizations of peripherally adjacent individual radiators are polarized in the opposite sense of rotation.
Claim 4
Dependent Claim
18 words
In an omnidirectional antenna, the improvement claimed in claim 1, in which the individual radiators are horn radiators.
Claim 5
Dependent Claim
18 words
In an omnidirectional antenna, the improvement claimed in claim 1, in which the individual radiators are dipole radiators.
Claim 6
Dependent Claim
18 words
In an omnidirectional antenna, the improvement claimed in claim 2, in which the individual radiators are helical radiators.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |