Compact high-power reflective-cavity backed spiral antenna
AssigneeITT Manufacturing Enterprises, Inc.
InventorWolodymyr Mohuchy
Life of this patent
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Abstract
An antenna device includes a substrate, and a radiating element disposed on the substrate. The radiating element has two spiral arms unfurling in an Archimedean progression and terminating in a logarithmic progression. The substrate is formed from a dielectric material and includes multiple perforations for providing passage of coolant through the substrate. The radiating element is disposed on a front surface of the substrate, and an enclosure is formed on a rear surface of the substrate to provide a reflective cavity for reflecting radiation to the front surface of the substrate. The enclosure includes a hexagonal perimeter formed by a wall. The antenna device may be used as an element in a planar phased array.
Claims14
An antenna device comprising:
- a substrate,
- a radiating element disposed on the substrate, the radiating element including two spiral arms unfurling in an Archimedean progression and terminating in a logarithmic progression,
- the radiating element disposed on a front surface of the substrate, and
- an enclosure formed on a rear surface of the substrate to provide a reflective cavity for reflecting radiation to the front surface of the substrate.
A phased array comprising:
- a plurality of antenna devices, each antenna device including
- a substrate,
- a radiating element disposed on a front surface of the substrate, and
- an enclosure formed on a rear surface of the substrate to provide a reflective cavity for reflecting radiation to the front surface of the substrate,
- wherein the enclosure includes a hexagonal wall attached to the substrate.
Dependencies are inferred from the claim text.