US5543814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric-supported antenna
Assignee: Individual
•
Filing: 1995-03-10
•
Granted: 1996-08-06
•
Expires: 2015-03-10
Abstract
Abstract A dielectric body 20 with a dielectric constant near that of air has a surface 18, a portion of a paraboloid of revolution about an axis 9--9. A layer 15 of electrically conducting material is shaped by surface 18 to the form of an antenna reflector for transmitting electromagnetic radiation, or for receiving electromagnetic radiation indicated by arrows 50. A mating body 30 covers conductive layer 15. Dielectric body 20 has a protrusion 17 that mates with a horn 40 at a specified position relative to conductive layer 15, with horn axis 8--8 perpendicular to paraboloid axis 9--9.
Inventors
- 👤 James R. Jenness, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:37
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
181 words
An antenna structure comprising: a body composed of a rigid dielectric material having a dielectric constant approximately equal to that of air, having a surface shaped as a portion of a surface of revolution, having the form of an antenna reflector and a protrusion having a surface shaped as a portion of the inner surface of a horn for transmitting or receiving microwave or millimeter wave electromagnetic radiation, the axis of said protrusion being co-planar with and perpendicular to the axis of said surface of revolution, a layer of electrically conducting material in contact with said portion of said surface of revolution of said body, shaped by said surface to the form of an antenna reflector, and a horn associated with an electromagnetic wave transmitting device or an electromagnetic wave receiving device mating with said protrusion of said body, said body having form and dimensions to place said layer of electrically conducting material at a position relative to said horn such that the assembly can function as an antenna reflector system for transmitting or receiving microwave or millimeter wave electromagnetic radiation.
Claim 2
Dependent Claim
181 words
An antenna structure comprising: a body composed of a rigid dielectric material having a dielectric constant approximately equal to that of air, having a surface shaped as a portion of a surface of revolution, having the form of an antenna reflector and a protrusion having a surface shaped as a portion of the inner surface of a horn for transmitting or receiving microwave or millimeter wave electromagnetic radiation, the axis of said protrusion being co-planar with and perpendicular to the axis of said surface of revolution, a layer of electrically conducting material in contact with said portion of said surface of revolution of said body, shaped by said surface to the form of an antenna reflector, and a horn associated with an electromagnetic wave transmitting device or an electromagnetic wave receiving device mating with said protrusion of said body, said body having form and dimensions to place said layer of electrically conducting material at a position relative to said horn such that the assembly can function as an antenna reflector system for transmitting or receiving microwave or millimeter wave electromagnetic radiation.
Claim 3
Dependent Claim
32 words
The antenna structure of claim 1 wherein said layer of electrically conducting material is held between said surface of revolution of said dielectric body and a mating surface of a second body.
References Cited (Backward Citations)
US2698901A
Cited
US2775760A
Cited
US2750588A
Cited
US3545583A
Cited
US3611396A
Cited
US4188632A
Cited
JPS56122508A
Cited
US4482513A
Cited
US4636801A
Cited
US4783665A
Cited
US5057844A
Cited
US5426443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |