Communications: radio wave antennas – Antennas – Antenna components
Reexamination Certificate
2004-06-15
2008-08-12
Wimer, Michael C (Department: 2821)
Communications: radio wave antennas
Antennas
Antenna components
Reexamination Certificate
active
07411565
ABSTRACT:
A magnetically-loaded artificial magnetic conductor surface provides enhanced bandwidth. The structure includes in one embodiment a thumbtack structure with a spacer layer that is loaded with a barium-cobalt hexaferrite based artificial magnetic material. Specifically, the geometry consists of a ground plane covered with thinly sliced ferrite tiles that are metallized and stacked. Each tile has a metal via running through its center that is electrically connected to the plated metallized surfaces. A foam spacer layer resides above the ferrite tiles. Atop the foam spacer layer rests a capacitive surface, which can be realized as a single layer array of metal patches, a multiple layer array of overlapping patches or other planar capacitive geometry.
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Caswell Eric
Diaz Rodolfo E.
McKinzie, III William E.
Sanchez Victor C.
Brinks Hofer Gilson & Lione
Titan Systems Corporation/Aerospace Electronic Division
Wimer Michael C
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