Integrated coaxial notch antenna feed
AssigneeMassachusetts Institute of Technology
InventorsGlenn A. Brigham, David M. Bragdon, Edward M. Froehlich
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Abstract
A novel system for supporting a plurality of notch antenna elements is disclosed. This system allows the creation of higher power ultra-wideband step notch arrays. The system also provides electrical connection to each of the notch antenna elements via respective coaxial cables or other direct connections. These coaxial cables connect to coaxial connectors disposed on a substrate that supports the notch antenna elements. Each coaxial connector is in electrical communication with one of the notch antenna elements. By replacing the printed circuit board traditionally used, higher power can be supplied to the notch antenna elements.
Claims17
A notch antenna, comprising:
- a substrate, having first and second sides;
- a coaxial connector disposed on the first side of the substrate;
- a notch radiator element comprising an energized prong and a grounded prong separated by a slot, and disposed on the second side of the substrate;
- a base portion extending downward from the notch radiator element and defining a cavity between the notch radiator element and the second side of the substrate;
- and
- a metal housing is disposed within the cavity, comprising:
- a first bored portion, formed as a first hollow cylinder, to mechanically attach the substrate to the grounded prong, and
- a second bored portion, formed as a second hollow cylinder, having a coaxial transmission line center pin disposed within the second hollow cylinder which electrically connects the coaxial connector to the energized prong.
A notch antenna element, comprising:
- a coaxial connector disposed on a first side of a substrate;
- a notch radiator element comprising an energized prong and a grounded prong separated by a slot, and disposed on the second side of the substrate;
- a base portion in communication with a lower end of the notch radiator element and the substrate, and defining a cavity between the notch radiator element and a second surface of the substrate;
- and
- a metal housing is disposed within the cavity to mechanically attach the substrate to the grounded prong, and having a bored portion, formed as a hollow cylinder, having a coaxial transmission line center pin disposed within the hollow cylinder which electrically connects the coaxial connector to the energized prong.
Dependencies are inferred from the claim text.