Patent US1099136A successfully refreshed from Google Patents.
US4518969A
Expired / Lapsed
US
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Vertically polarized omnidirectional antenna
Assignee: BOGNER BROADCAST EQUIPMENT CORP
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Filing: 1982-12-22
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Granted: 1985-05-21
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Expires: 2002-12-22
Abstract
Abstract An antenna for providing a vertically polarized omnidirectional horizontal radiation pattern comprising colinear dipoles. Suitable feeding arrangements are provided for electromagnetically feeding the dipoles with a signal. An axially extending conductive member is spaced on either side of the colinear dipoles. The axis of each of said conductive members as well as the axis of the dipoles are colinear and parallel.
Inventors
- 👤 Richard D. Bogner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:48
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/28; H01Q19/30; H01Q21/00; H01Q21/06; H01Q21/08; H01Q21/10
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
121 words
An antenna for producing an omnidirectional radiation pattern comprising: at least one dipole having a pair of electrically conductive arms extending oppositely along a common axis from a feed point; feeding means connected to said feed point for coupling said dipole to a signal source of a wavelength λ where λ is the wavelength of interest; and a pair of opposing axially extending electrically conductive reflecting members spaced apart on opposite sides of said dipole, said members having a width of less than λ/4 transverse to the axis of the dipole, the respective axis of each of said conductive members and said dipole arms being coplanar and parallel; whereby the polarization of the antenna is transverse to the plane of omnidirectionality.
Claim 2
Dependent Claim
121 words
An antenna for producing an omnidirectional radiation pattern comprising: at least one dipole having a pair of electrically conductive arms extending oppositely along a common axis from a feed point; feeding means connected to said feed point for coupling said dipole to a signal source of a wavelength λ where λ is the wavelength of interest; and a pair of opposing axially extending electrically conductive reflecting members spaced apart on opposite sides of said dipole, said members having a width of less than λ/4 transverse to the axis of the dipole, the respective axis of each of said conductive members and said dipole arms being coplanar and parallel; whereby the polarization of the antenna is transverse to the plane of omnidirectionality.
Claim 3
Dependent Claim
16 words
The antenna of claim 1 wherein said dipole has a length between 0.2 λ and λ.
Claim 4
Dependent Claim
14 words
The antenna of claim 1 wherein said dipole has a length of about λ/2.
Claim 5
Dependent Claim
38 words
An antenna as in claim 1, wherein said dipole axis is oriented vertically relative to the earth's surface to provide a vertically polarized antenna which has an omnidirectional radiation pattern in a plane parallel to the earth's surface.
Claim 6
Dependent Claim
34 words
An omnidirectional antenna as in claim 1, comprising a vertical array of a plurality of said dipoles, coaxially aligned, said conductive members being elongated and serving as common reflectors for all of said dipoles.
Claim 7
Dependent Claim
19 words
An omnidirectional antenna as in claim 1, wherein said feeding means are electrically hidden by said conductive reflective members.
Claim 8
Dependent Claim
20 words
An omnidirectional antenna as in claim 1, wherein said dipole is spaced less than λ from one conductive reflective member.
Claim 9
Dependent Claim
21 words
An omnidirectional antenna as in claim 1, wherein the thickness of said conductive reflective members are a small fraction of λ.
Claim 10
Dependent Claim
31 words
An omnidirectional antenna as in claim 1, wherein said dipole is spaced between λ/8 and λ/2 from said one conductive member, and between λ/20 and λ/4 from the other conductive member.
Claim 11
Dependent Claim
16 words
An omnidirectional antenna as in claim 1, wherein the dipole length is between λ/4 and λ.
Claim 12
Dependent Claim
75 words
An omnidirectional antenna as in claim 1, wherein the width of said one conductive member is between 0.06 and 0.08 λ, the width of said other conductive member is between 0.12 λ and 0.14 λ, the distance of the dipole arms to said one conductive member is between 0.24 λ, and 0.26 λ, and the distance to said other conductive member is between 0.08 λ and 0.10 λ, where λ is the wavelength of interest.
Claim 13
Dependent Claim
21 words
An omnidirectional antenna as in claim 1, wherein the length of the dipole arm is between 0.2 λ and 0.3 λ.
Claim 14
Dependent Claim
47 words
An omnidirectional antenna as in claim 5, wherein said dipole arms are supported by one of said conductive members by support means transversely positioned between said dipole arms and said one conductive member, and wherein said support means also provides for a center feed for said dipoles.
Claim 15
Dependent Claim
48 words
An omnidirectional antenna as in claim 13, and comprising a strip line coupled onto said one conductive member for supplying said support means and a coaxial feed line coupled to said strip line for supplying said strip line, said coaxial feed line extending along said other conductive member.
Claim 16
Dependent Claim
21 words
An omnidirectional antenna as in claim 7, wherein the length of said conductive members along said axes is greater than λ/2.
Claim 17
Dependent Claim
17 words
An omnidirectional antenna as in claim 13, comprising a tubular electrically non-conductive housing member encasing said antenna.
Claim 18
Dependent Claim
29 words
An omnidirectional antenna wherein a plurality of dipoles as in claim 1 are electromagnetically coupled to form a module and means for interconnecting at least two of said modules.
Claim 19
Dependent Claim
25 words
An omnidirectional antenna comprising a plurality of dipoles as in claim 12 coupled at one wavelength spacing, center-to-center, between adjacent dipoles to form a module.
Claim 20
Dependent Claim
14 words
An antenna comprising a plurality of the said modules of claim 18 coupled together.
Claim 21
Dependent Claim
91 words
An omnidirectional antenna comprising a plurality of the antennas of claim 1, wherein the dipoles have a length of λ/2, and wherein the width of said one conductive member is between 0.06 λ and 0.08 λ, the width of the said other conductive members is between 0.12 λ and 0.14 λ, the distance of the dipole arms to said one conductive member is between 0.24 λ and 0.26 λ and the distance to said other conductive member is between 0.08 λ and 0.10 λ where λ is the wavelength of interest.
Claim 22
Dependent Claim
56 words
The antenna as in claim 20, wherein the width of said one conductive member is about 0.07 λ, the width of said other conductive member is about 0.13 λ, the distance of the dipole arms to said one conductive member is about 0.25 λ and the distance to said other conductive member is about 0.09 λ.
Claim 23
Dependent Claim
113 words
A colinear antenna array comprising a plurality of modules electrically coupled together by means of transmission lines, each of said modules comprising a plurality of dipoles including a pair of oppositely extending arms, each of said dipoles having a length of between 0.2 λ and λ, said dipoles of each said modules being fed by means of an open strip line and including a pair of opposing axially extending electrically conductive reflecting members having a width less than λ/4 spaced apart on opposite sides of said modules, the respective axis of each of said conductive members and said dipole arms being coplanar and parallel; where λ is the wavelength of signals of interest.
Claim 24
Dependent Claim
113 words
A colinear antenna array comprising a plurality of modules electrically coupled together by means of transmission lines, each of said modules comprising a plurality of dipoles including a pair of oppositely extending arms, each of said dipoles having a length of between 0.2 λ and λ, said dipoles of each said modules being fed by means of an open strip line and including a pair of opposing axially extending electrically conductive reflecting members having a width less than λ/4 spaced apart on opposite sides of said modules, the respective axis of each of said conductive members and said dipole arms being coplanar and parallel; where λ is the wavelength of signals of interest.
Claim 25
Dependent Claim
23 words
The array of claim 22 wherein said transmission lines used for coupling said modules are electrically hidden by said electrically conductive reflective members.
Claim 26
Dependent Claim
18 words
The array of claim 22, wherein said dipoles are spaced less than λ from one conductive reflective member.
Claim 27
Dependent Claim
19 words
The array of claim 22, wherein the thickness of said conductive reflective members are a small fraction of λ.
Claim 28
Dependent Claim
31 words
The array of claim 22, wherein said dipoles are spaced between λ/8 and λ/2 from said one said conductive member, and between λ/20 and λ/7 from the said other conductive member.
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) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |