Cylindrical double-layer microstrip array antenna
First Claim
1. A cylindrical, double-layer microstrip antenna comprising:
- a first cylindrical dielectric layer defining first and second sides;
a conductive ground plane disposed on the first side of the first dielectric layer;
an array of conducting strips disposed on the second side of the first dielectric layer, the array of strips being spaced apart to form a slot between each pair of adjacent strips;
a second cylindrical dielectric layer defining first and second sides, the first side of the second dielectric layer being secured to the second side of the first dielectric layer and to the array of strips;
an array of radiating patches disposed on the second side of the second dielectric layer, each patch being located over one of the slots, the array of patches being spaced apart to form an aperture between each pair of adjacent patches; and
at least one feeding means comprising a first conducting element electrically connected to the ground plane, and a second conducting element electrically connected to a strip connected for feeding electromagnetic energy to and/or extracting electromagnetic energy from the antenna.
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Accused Products
Abstract
A microstrip antenna has first and second cylindrically-shaped dielectric layers having first sides secured together with an array of conducting strips conformally interposed therebetween, the strips being spaced to define a slot between each pair of adjacent strips. A conductive ground plane is disposed on an interior second side of the first dielectric layer, and an array of spaced apart radiating patches are conformally disposed on an exterior second side of the second dielectric layer, each of which patches is positioned over a corresponding slot. Responsive to electromagnetic energy, a high-order standing wave is induced in the antenna and a directed beam is transmitted from and/or received into the antenna.
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Citations
29 Claims
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1. A cylindrical, double-layer microstrip antenna comprising:
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a first cylindrical dielectric layer defining first and second sides;
a conductive ground plane disposed on the first side of the first dielectric layer;
an array of conducting strips disposed on the second side of the first dielectric layer, the array of strips being spaced apart to form a slot between each pair of adjacent strips;
a second cylindrical dielectric layer defining first and second sides, the first side of the second dielectric layer being secured to the second side of the first dielectric layer and to the array of strips;
an array of radiating patches disposed on the second side of the second dielectric layer, each patch being located over one of the slots, the array of patches being spaced apart to form an aperture between each pair of adjacent patches; and
at least one feeding means comprising a first conducting element electrically connected to the ground plane, and a second conducting element electrically connected to a strip connected for feeding electromagnetic energy to and/or extracting electromagnetic energy from the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A cylindrical, double-layer microstrip antenna comprising:
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first and second cylindrical dielectric layers having first sides secured together with an array of conducting strips interposed therebetween, the strips being spaced to define a slot between each pair of adjacent strips;
a conductive ground plane disposed on an interior second side of the first dielectric layer; and
an array of radiating patches disposed on an exterior second side of the second dielectric layer, each of which patches is positioned over a corresponding slot, the array of patches being spaced apart to form an aperture between each pair of adjacent patches so that, responsive to electromagnetic energy, a high-order standing wave is induced in the antenna and a directed beam is transmitted from or received into the antenna. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification