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US 6,492,949 B1Granted
Slot antenna element for an array antenna
AssigneeRaytheon Company
InventorsCaroline Breglia, Joseph S. Pleva, Thomas W. French, Walter Gordon Woodington, Michael Joseph Delcheccolo, Mark E. Russell, H. Barteld Van Rees
Life of this patent
Estimating the term…
Abstract
A multiple beam array antenna system comprises a plurality of radiating elements provided from stripline-fed open-ended waveguide coupled to a Butler matrix beam forming network. The Butler matrix beam forming network is coupled to a switched beam combining circuit. The antenna can be fabricated as a single Low Temperature Co-fired Ceramic (LTCC) circuit.
Claims20
An antenna element comprising:
- a feed circuit layer having first and second opposing surfaces with a first one of the first and second surfaces having a first ground plane disposed thereon and second one of the first and second surfaces having a feed circuit disposed thereon;
- a first radiator layer having first and second opposing surfaces with a first one of the first and second opposing surfaces disposed over the second one of the first and second opposing surfaces of said feed circuit layer and a second one of the first and second opposing surfaces of said first radiator layer having a second ground plane disposed thereon with the second ground plane having an aperture therein;
- and
- at least one conductive path coupling the first and second ground plane layers to provide a cavity in said first radiator layer and feed circuit layer.
1 more element
An antenna element comprising:
- a first plurality of dielectric layers, each of the plurality of dielectric layers having a conductive material disposed on selected portions thereof to provide one or more tuning structures;
- a plurality of vias embedded in the plurality of dielectric layers to provide a cavity structure in the first plurality of dielectric layers;
- and
- a feed circuit disposed in at least one of the plurality of dielectric layers electromagnetically coupled to said cavity structure.
1 more element
An antenna comprising:
- an array of antenna elements, each of said antenna elements comprising:
- a feed circuit layer having first and second opposing surfaces with a first one of the first and second surfaces having a first ground plane disposed thereon and a second one of the first and second surfaces having a feed circuit disposed thereon;
- a radiator layer having first and second opposing surfaces with a first one of the first and second opposing surfaces disposed over the second one of the first and second opposing surfaces of said feed circuit layer and with a second one of the first and second opposing surfaces of said radiator layer having a second ground plane disposed thereon with the second ground plane having an aperture therein;
- and
- at least one conductive path coupling the first and second ground plane layers to provide a cavity in said radiator and feed circuit layers.
2 more elements
Dependencies are inferred from the claim text.