Patent US3750182A successfully refreshed from Google Patents.
US3750182A
Expired / Lapsed
US
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Suppressed sidelobe equal beamwidth millimeter horn antenna
Assignee: United States Department of the Air Force
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Filing: 1972-08-08
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Granted: 1973-07-31
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Expires: 1992-08-08
Abstract
Abstract A millimeter horn antenna apparatus for providing millimeter wave frequencies with suppressed sidelobes and equal beamwidths in the orthogonal electric and magnetic planes.
Inventors
- 👤 N Kernweis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:08
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A suppressed sidelobe equal bandwidth millimeter horn antenna apparatus comprising in combination: a conical radiating horn antenna for radiating a millimeter wave frequency, said millimeter wave frequency providing a radiation pattern, said radiation pattern having orthogonal electric and magnetic energy planes, said conical radiating horn antenna having a throat and a radiating aperture, said conical radiating horn antenna being tapered between said radiating aperture and said throat, and a wedge to focus and phase shift said orthogonal electric and magnetic energy planes to produce suppressed sidelobes and equal beamwidths, said wedge being positioned within said conical radiating horn antenna between said radiating aperture and said throat, said wedge comprising a pair of wedge vanes, said wedge vanes being plane surfaces, said pair of wedge vanes being in an orthogonal relationship to one another.
Claim 2
Dependent Claim
133 words
A suppressed sidelobe equal bandwidth millimeter horn antenna apparatus comprising in combination: a conical radiating horn antenna for radiating a millimeter wave frequency, said millimeter wave frequency providing a radiation pattern, said radiation pattern having orthogonal electric and magnetic energy planes, said conical radiating horn antenna having a throat and a radiating aperture, said conical radiating horn antenna being tapered between said radiating aperture and said throat, and a wedge to focus and phase shift said orthogonal electric and magnetic energy planes to produce suppressed sidelobes and equal beamwidths, said wedge being positioned within said conical radiating horn antenna between said radiating aperture and said throat, said wedge comprising a pair of wedge vanes, said wedge vanes being plane surfaces, said pair of wedge vanes being in an orthogonal relationship to one another.
Claim 3
Dependent Claim
26 words
A suppressed sidelobe equal bandwidth millimeter horn antenna apparatus as described in claim 1 wherein said wedge is constructed from a one piece, low-loss, low-dielectric material.
Claim 4
Dependent Claim
28 words
A suppressed sidelobe equal bandwidth millimeter horn antenna apparatus as described in claim 1 wherein said wedge is constructed from a plurality of low-loss, low dielectric material sections.
References Cited (Backward Citations)
DE903474C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |