US3605099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phased slot antenna array with frustoconical reflector
Assignee: Individual
•
Filing: 1969-08-14
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Granted: 1971-09-14
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Expires: 1989-08-14
Abstract
Abstract An antenna for omnidirectional or directional transmission. The antenna comprises a central member for supporting at least one pair of spaced frustoconical reflector elements. The support member is slotted between the reflector elements to serve as an energy radiator. Energy is supplied to the radiator by connecting adjustable probes between the slots and a central conductor within the support member.
Inventors
- 👤 Howard E Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:50
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q13/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A transmission antenna comprising: a hollow conductive support member; a pair of spaced frustoconical reflector elements joined to said support member; a central conductor within said support member; and means electrically connecting said central conductor to the support member along individual slots in said member which extend between the reflector elements and which are disposed about the support member, said connecting means being adjustably connected to said slots in positions to effect phase displacemenT of the energy supplied to each slot with respect to that supplied to the remaining slots.
Claim 2
Dependent Claim
90 words
A transmission antenna comprising: a hollow conductive support member; a pair of spaced frustoconical reflector elements joined to said support member; a central conductor within said support member; and means electrically connecting said central conductor to the support member along individual slots in said member which extend between the reflector elements and which are disposed about the support member, said connecting means being adjustably connected to said slots in positions to effect phase displacemenT of the energy supplied to each slot with respect to that supplied to the remaining slots.
Claim 3
Dependent Claim
36 words
An antenna as set forth in claim 1, wherein said reflector elements are spaced at their joinder to said support member by a distance equal to one-half the wavelength of the carrier frequency to be transmitted.
Claim 4
Dependent Claim
33 words
An antenna as set forth in claim 1, wherein the side of each of said frustoconical elements is equal in length to at least the wavelength of the carrier frequency to be transmitted.
Claim 5
Dependent Claim
37 words
An antenna as set forth in claim 1, further comprising at least one additional pair of frustoconical reflector elements interposed between said first-mentioned pair of elements and spaced therefrom, each additional pair being joined at their bases.
Claim 6
Dependent Claim
43 words
An antenna as set forth in claim 4 wherein each of said reflector elements is spaced from adjacent elements at the joinder of said elements to the support member by a distance of one-half the wavelength of the carrier frequency to be transmitted.
Claim 7
Dependent Claim
33 words
An antenna as set forth in claim 4, wherein the side of each of said frustoconical elements is equal in length to at least the wavelength of the carrier frequency to be transmitted.
Claim 8
Dependent Claim
33 words
An antenna as set forth in claim 5, wherein the side of each of said frustoconical elements is equal in length to at least the wavelength of the carrier frequency to be transmitted.
Claim 9
Dependent Claim
35 words
An antenna as set forth in claim 7, wherein the sides of the first-mentioned pair of reflector elements are equal in length to 1 1/2 times the wavelength of the carrier frequency to be transmitted.
Claim 10
Dependent Claim
30 words
An antenna as set forth in claim 4, wherein said slots extend between each element of said additional reflector element pair and the element positioned in spaced relationship adjacent thereto.
Claim 11
Dependent Claim
30 words
An antenna as set forth in claim 8, wherein said slots extend between each element of said additional reflector element pair and the element positioned in spaced relationship adjacent thereto.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |