US5483248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous transverse stub element devices for flat plate antenna arrays
Assignee: Raytheon Co
•
Filing: 1993-08-10
•
Granted: 1996-01-09
•
Expires: 2013-08-10
Abstract
Abstract A dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces. The exterior is uniformly conductively coated resulting in a parallel plate waveguide having a continuous transverse stub element disposed adjacent one plate thereof. Purely reactive elements are formed by leaving the conductive coating on the terminus of the stub element, or by narrowing the terminus of the stub element. Radiating elements are formed when stub elements of moderate height are opened to free space. Radiating, coupling and/or reactive continuous transverse stub elements may be combined in a common parallel plate structure in order to form a variety of microwave, millimeter wave and quasi-optical components including integrated filters, couplers and antenna arrays. Fabrication of the dielectrically-loaded continuous transverse stub element can be efficiently accomplished by machining, extruding or molding the dielectric structure, followed by uniform conductive plating in order to form the parallel plate transmission line. In the case of antenna applications, machining or grinding is performed on the stub terminus to expose the dielectric material at the end of the stub element.
Inventors
- 👤 William W. Milroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:01
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20; H01Q13/28
Claims Analysis
Total Claims: 160
Claim 1
Independent Claim
210 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a thin conducting layer disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise depressions in the parallel-plate waveguide.
Claim 2
Dependent Claim
210 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a thin conducting layer disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise depressions in the parallel-plate waveguide.
Claim 3
Dependent Claim
18 words
The antenna array of claim 1 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 4
Dependent Claim
18 words
The antenna array of claim 1 with a parameter variation of said transverse stubs in a transverse direction.
Claim 5
Dependent Claim
17 words
The antenna array of claim 1 wherein each of said transverse stubs is a multi-stage stub element.
Claim 6
Dependent Claim
18 words
The antenna array of claim 1 wherein the transverse elements are paired elements to comprise a matched couplet.
Claim 7
Dependent Claim
18 words
The antenna array of claim 1 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 8
Dependent Claim
12 words
The antenna array of claim 1 wherein said array provides circular polarization.
Claim 9
Dependent Claim
15 words
The antenna array of claim 1 wherein the array is a dual polarization antenna array.
Claim 10
Dependent Claim
14 words
The antenna array of claim 1 wherein the array is a squint-beam antenna array.
Claim 11
Dependent Claim
26 words
The antenna array of claim 1 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 12
Dependent Claim
38 words
The antenna array of claim 1 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 13
Dependent Claim
15 words
The antenna array of claim 1 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 14
Dependent Claim
22 words
The antenna array of claim 1 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by a thin conducting layers.
Claim 15
Dependent Claim
19 words
The antenna array of claim 1 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 16
Dependent Claim
17 words
The antenna array of claim 1 wherein the conductive coating is formed in the shape of squares.
Claim 17
Dependent Claim
17 words
The antenna array of claim 1 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 18
Dependent Claim
19 words
The antenna array of claim 1 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 19
Dependent Claim
21 words
The antenna array of claim 17 wherein the superstrate is comprised of at least one dielectric layer covering the antenna array.
Claim 20
Dependent Claim
27 words
The antenna array of claim 17 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
Claim 21
Dependent Claim
211 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a thick conducting layer disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise complementary depressions in an upper conductor-region.
Claim 22
Dependent Claim
211 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a thick conducting layer disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise complementary depressions in an upper conductor-region.
Claim 23
Dependent Claim
18 words
The antenna array of claim 20 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 24
Dependent Claim
18 words
The antenna array of claim 20 with a parameter variation of said transverse stubs in a transverse direction.
Claim 25
Dependent Claim
16 words
The antenna array of claim 20 wherein each of said transverse stubs is a multi-stage element.
Claim 26
Dependent Claim
18 words
The antenna array of claim 20 wherein said transverse elements are paired elements to comprise a matched couplet.
Claim 27
Dependent Claim
18 words
The antenna array of claim 20 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 28
Dependent Claim
12 words
The antenna array of claim 20 wherein said array provides circular polarization.
Claim 29
Dependent Claim
15 words
The antenna array of claim 20 wherein the array is a dual polarization antenna array.
Claim 30
Dependent Claim
14 words
The antenna array of claim 20 wherein the array is a squint-beam antenna array.
Claim 31
Dependent Claim
26 words
The antenna array of claim 20 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprising a thin conductive sheet.
Claim 32
Dependent Claim
38 words
The antenna array of claim 20 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 33
Dependent Claim
15 words
The antenna array of claim 20 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 34
Dependent Claim
21 words
The antenna array of claim 20 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 35
Dependent Claim
19 words
The antenna array of claim 20 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 36
Dependent Claim
17 words
The antenna array of claim 20 wherein the conductive coating is formed in the shape of squares.
Claim 37
Dependent Claim
17 words
The antenna array of claim 20 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 38
Dependent Claim
19 words
The antenna array of claim 20 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 39
Dependent Claim
21 words
The antenna array of claim 36 wherein the superstrate is comprised of at least one dielectric layer covering the antenna array.
Claim 40
Dependent Claim
27 words
The antenna array of claim 37 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, arid low-density foam.
Claim 41
Dependent Claim
212 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a thick conducting layer disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise complementary extensions in an upper conductor region.
Claim 42
Dependent Claim
212 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a thick conducting layer disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise complementary extensions in an upper conductor region.
Claim 43
Dependent Claim
18 words
The antenna array of claim 39 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 44
Dependent Claim
18 words
The antenna array of claim 39 with a parameter variation of said transverse stubs in a transverse direction.
Claim 45
Dependent Claim
17 words
The antenna array of claim 39 wherein each of said transverse stubs is a multi-stage stub element.
Claim 46
Dependent Claim
18 words
The antenna array of claim 39 wherein said transverse elements are paired elements to comprise a matched couplet.
Claim 47
Dependent Claim
18 words
The antenna array of claim 39 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 48
Dependent Claim
12 words
The antenna array of claim 39 wherein said array provides circular polarization.
Claim 49
Dependent Claim
15 words
The antenna array of claim 39 wherein the array is a dual polarization antenna array.
Claim 50
Dependent Claim
14 words
The antenna array of claim 39 wherein the array is a squint-beam antenna array.
Claim 51
Dependent Claim
26 words
The antenna array of claim 39 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 52
Dependent Claim
38 words
The antenna array of claim 39 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 53
Dependent Claim
15 words
The antenna array of claim 39 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 54
Dependent Claim
21 words
The antenna array of claim 39 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 55
Dependent Claim
19 words
The antenna array of claim 39 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 56
Dependent Claim
17 words
The antenna array of claim 39 wherein the conductive coating is formed in the shape of squares.
Claim 57
Dependent Claim
17 words
The antenna array of claim 39 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 58
Dependent Claim
19 words
The antenna array of claim 39 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 59
Dependent Claim
21 words
The antenna array of claim 55 wherein the superstrate is comprised of at least one dielectric layer covering the antenna array.
Claim 60
Dependent Claim
27 words
The antenna array of claim 56 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
Claim 61
Dependent Claim
213 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from said other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on he exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow said of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise offset troughs that are continuous in the transverse dimension.
Claim 62
Dependent Claim
213 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from said other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on he exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow said of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise offset troughs that are continuous in the transverse dimension.
Claim 63
Dependent Claim
18 words
The antenna array of claim 58 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 64
Dependent Claim
18 words
The antenna array of claim 58 with a parameter variation of said transverse stubs in a transverse direction.
Claim 65
Dependent Claim
17 words
The antenna array of claim 58 wherein each of said transverse stubs is a multi-stage stub element.
Claim 66
Dependent Claim
17 words
The antenna array of claim 58 wherein said transverse elements are paired to comprise a matched couplet.
Claim 67
Dependent Claim
18 words
The antenna array of claim 58 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 68
Dependent Claim
12 words
The antenna array of claim 58 wherein said array provides circular polarization.
Claim 69
Dependent Claim
15 words
The antenna array of claim 58 wherein the array is a dual polarization antenna array.
Claim 70
Dependent Claim
14 words
The antenna array of claim 58 wherein the array is a squint-beam antenna array.
Claim 71
Dependent Claim
26 words
The antenna array of claim 58 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 72
Dependent Claim
38 words
The antenna array of claim 58 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting late having a thickness value substantially the same as height of the stubs.
Claim 73
Dependent Claim
15 words
The antenna array of claim 58 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 74
Dependent Claim
21 words
The antenna array of claim 58 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 75
Dependent Claim
19 words
The antenna array of claim 58 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 76
Dependent Claim
17 words
The antenna array of claim 58 wherein the conductive coating is formed in he shape of squares.
Claim 77
Dependent Claim
17 words
The antenna array of claim 58 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 78
Dependent Claim
19 words
The antenna array of claim 58 which further comprises a superstrate dispose above the plurality of continuous transverse stubs.
Claim 79
Dependent Claim
21 words
The antenna array of claim 74 wherein the superstrate is comprised of at least one dielectric layer covering the antenna array.
Claim 80
Dependent Claim
27 words
The antenna array of claim 75 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
Claim 81
Dependent Claim
213 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching element disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise offset ridges that are continuous in the transverse dimension.
Claim 82
Dependent Claim
213 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching element disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise offset ridges that are continuous in the transverse dimension.
Claim 83
Dependent Claim
18 words
The antenna array of claim 77 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 84
Dependent Claim
18 words
The antenna array of claim 77 with a parameter variation of said transverse stubs in a transverse direction.
Claim 85
Dependent Claim
17 words
The antenna array of claim 77 wherein each of said transverse stubs is a multi-stage stub element.
Claim 86
Dependent Claim
18 words
The antenna array of claim 77 wherein said transverse elements are paired elements to comprise a matched couplet.
Claim 87
Dependent Claim
18 words
The antenna array of claim 77 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 88
Dependent Claim
12 words
The antenna array of claim 77 wherein said array provides circular polarization.
Claim 89
Dependent Claim
15 words
The antenna array of claim 77 wherein the array is a dual polarization antenna array.
Claim 90
Dependent Claim
14 words
The antenna array of claim 77 wherein the array is a squint-beam antenna array.
Claim 91
Dependent Claim
26 words
The antenna array of claim 77 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 92
Dependent Claim
38 words
The antenna array of claim 77 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 93
Dependent Claim
15 words
The antenna array of claim 77 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 94
Dependent Claim
21 words
The antenna array of claim 77 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 95
Dependent Claim
19 words
The antenna array of claim 77 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 96
Dependent Claim
17 words
The antenna array of claim 77 wherein the conductive coating is formed in the shape of squares.
Claim 97
Dependent Claim
17 words
The antenna array of claim 77 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 98
Dependent Claim
19 words
The antenna array of claim 77 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 99
Dependent Claim
21 words
The antenna array of claim 93 wherein the superstrate is comprised of at least one dielectric layer covering the antenna array.
Claim 100
Dependent Claim
27 words
The antenna array of claim 94 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
Claim 101
Dependent Claim
214 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free form said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching element disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise troughs that form discrete offset crosses in an inter-stub region.
Claim 102
Dependent Claim
214 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free form said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching element disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise troughs that form discrete offset crosses in an inter-stub region.
Claim 103
Dependent Claim
18 words
The antenna array of claim 96 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 104
Dependent Claim
18 words
The antenna array of claim 96 with a parameter variation of said transverse stubs in a transverse direction.
Claim 105
Dependent Claim
17 words
The antenna array of claim 96 wherein each of said transverse stubs is a multi-stage stub element.
Claim 106
Dependent Claim
18 words
The antenna array of claim 96 wherein said transverse elements are paired elements to comprise a matched couplet.
Claim 107
Dependent Claim
18 words
The antenna array of claim 96 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 108
Dependent Claim
12 words
The antenna array of claim 96 wherein said array provides circular polarization.
Claim 109
Dependent Claim
15 words
The antenna array of claim 96 wherein the array is a dual polarization antenna array.
Claim 110
Dependent Claim
14 words
The antenna array of claim 96 wherein the array is a squint-beam antenna array.
Claim 111
Dependent Claim
26 words
The antenna array of claim 96 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 112
Dependent Claim
38 words
The antenna array of claim 96 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 113
Dependent Claim
15 words
The antenna array of claim 96 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 114
Dependent Claim
21 words
The antenna array of claim 96 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 115
Dependent Claim
19 words
The antenna array of claim 96 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 116
Dependent Claim
17 words
The antenna array of claim 96 wherein the conductive coating is formed in he shape of squares.
Claim 117
Dependent Claim
17 words
The antenna array of claim 96 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 118
Dependent Claim
19 words
The antenna array of claim 96 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 119
Dependent Claim
21 words
The antenna array of claim 112 wherein the superstrate is comprised of at lest one dielectric layer covering he antenna array.
Claim 120
Dependent Claim
27 words
The antenna array of claim 113 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
Claim 121
Dependent Claim
214 words
The antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise ridges that form discrete offset crosses in an inter-stub region.
Claim 122
Dependent Claim
214 words
The antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on the exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the non-radiating matching elements comprise ridges that form discrete offset crosses in an inter-stub region.
Claim 123
Dependent Claim
18 words
The antenna array of claim 115 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 124
Dependent Claim
18 words
The antenna array of claim 115 with a parameter variation of said transverse stubs in a transverse direction.
Claim 125
Dependent Claim
17 words
The antenna array of claim 115 wherein each of said transverse stubs is a multi-stage stub element.
Claim 126
Dependent Claim
18 words
The antenna array of claim 115 wherein said transverse elements are paired elements to comprise a matched couplet.
Claim 127
Dependent Claim
18 words
The antenna array of claim 115 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 128
Dependent Claim
12 words
The antenna array of claim 115 wherein said array provides circular polarization.
Claim 129
Dependent Claim
15 words
The antenna array of claim 115 wherein the array is a dual polarization antenna array.
Claim 130
Dependent Claim
14 words
The antenna array of claim 115 wherein the array is a squint-beam antenna array.
Claim 131
Dependent Claim
26 words
The antenna array of claim 115 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 132
Dependent Claim
38 words
The antenna array of claim 115 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 133
Dependent Claim
15 words
The antenna array of claim 115 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 134
Dependent Claim
21 words
The antenna array of claim 115 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 135
Dependent Claim
19 words
The antenna array of claim 115 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 136
Dependent Claim
17 words
The antenna array of claim 115 wherein the conductive coating is formed in the shape of squares.
Claim 137
Dependent Claim
17 words
The antenna array of claim 115 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 138
Dependent Claim
19 words
The antenna array of claim 115 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 139
Dependent Claim
21 words
The antenna array of claim 131 wherein the superstrate is comprises of at least one dielectric layer covering the antenna array.
Claim 140
Dependent Claim
27 words
The antenna array of claim 132 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
Claim 141
Dependent Claim
253 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on he exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the cross-sectional shapes and relative locations off the non-radiating matching elements is chose to introduce a reflection coefficient within the parallel-plate waveguide that is substantially identical in magnitude and 180 degrees out of phase relative to the reflection coefficient associated with an adjacent radiating stub element that results in a cancellation of undesired reflections.
Claim 142
Dependent Claim
253 words
An antenna array employing continuous transverse stubs as radiating elements, said antenna array comprising: a planar rectangular sheet of dielectric material having two parallel broad surfaces separated by a predetermined distance; a plurality of elongated raised relatively thin rectangular dielectric members integral with said sheet of dielectric material and extending transversely across one of the broad surfaces of said sheet of dielectric material, said plurality of thin rectangular dielectric members being evenly spaced from each other and regularly disposed along said sheet of dielectric material; a conductive coating disposed on he exterior of said sheet of dielectric material and on the exterior of said plurality of thin rectangular dielectric members to define a parallel plate waveguide having a plurality of continuous transverse stubs disposed on one plate thereof, the surfaces of said plurality of thin rectangular dielectric members distal from said sheet of dielectric material being free from said conductive coating so as to define a plurality of radiating elements, one narrow side of said sheet of dielectric material being free from said conductive coating so as to define a feed for the antenna array; and a plurality of non-radiating matching elements disposed between the continuous transverse stubs, wherein the cross-sectional shapes and relative locations off the non-radiating matching elements is chose to introduce a reflection coefficient within the parallel-plate waveguide that is substantially identical in magnitude and 180 degrees out of phase relative to the reflection coefficient associated with an adjacent radiating stub element that results in a cancellation of undesired reflections.
Claim 143
Dependent Claim
18 words
The antenna array of claim 134 wherein each of said transverse stubs is a longitudinal incidence stub element.
Claim 144
Dependent Claim
18 words
The antenna array of claim 134 with a parameter variation of said transverse stubs in a transverse direction.
Claim 145
Dependent Claim
17 words
The antenna array of claim 134 wherein each of said transverse stubs is a multi-stage stub element.
Claim 146
Dependent Claim
18 words
The antenna array of claim 134 wherein said transverse elements are paired elements to comprise a matched couplet.
Claim 147
Dependent Claim
18 words
The antenna array of claim 134 wherein radiating and non-radiating transverse stubs are pairs comprising a matched couplet.
Claim 148
Dependent Claim
12 words
The antenna array of claim 134 wherein said array provides circular polarization.
Claim 149
Dependent Claim
15 words
The antenna array of claim 134 wherein the array is a dual polarization antenna array.
Claim 150
Dependent Claim
13 words
The antenna array of claim 134 wherein the array is a squint-beam array.
Claim 151
Dependent Claim
26 words
The antenna array of claim 134 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thin conducting sheet.
Claim 152
Dependent Claim
38 words
The antenna array of claim 134 wherein the thickness of the conductive coating covering the parallel-plate waveguide between adjacent radiating stubs comprises a thick conducting plate having a thickness value substantially the same as height of the stubs.
Claim 153
Dependent Claim
15 words
The antenna array of claim 134 wherein the conductive coating comprises a solid homogeneous conductor.
Claim 154
Dependent Claim
21 words
The antenna array of claim 134 wherein the conductive coating comprises a hollow or inhomogeneously-filled cavity surrounded by thin conducting layers.
Claim 155
Dependent Claim
19 words
The antenna array of claim 134 wherein the conductive coating is formed in the shape of relatively long strips.
Claim 156
Dependent Claim
17 words
The antenna array of claim 134 wherein the conductive coating is formed in the shape of squares.
Claim 157
Dependent Claim
17 words
The antenna array of claim 134 wherein the non-radiating matching elements comprise extensions in the parallel-plate waveguide.
Claim 158
Dependent Claim
19 words
The antenna array of claim 134 which further comprises a superstrate disposed above the plurality of continuous transverse stubs.
Claim 159
Dependent Claim
21 words
The antenna array of claim 150 wherein the superstrate is comprised of at least one dielectric layer covering the antenna array.
Claim 160
Dependent Claim
27 words
The antenna array of claim 151 wherein the dielectric layer is formed from the group of dielectric materials including rexolite, polyethylene, stycast, lexan, air, and low-density foam.
References Cited (Backward Citations)
US5266961A
Cited
US5349363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-08 | 1999-07-10 | 2000-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-08 | 2003-07-10 | 2004-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-08 | 2007-07-10 | 2008-01-09 | $7700.00 | Window Closed / Lapsed |