Aperture-fed patch c-band antenna array for ultra-dense multiband antennas
AssigneeJohn Mezzalingua Associates, Inc.
InventorsJiaqiang ZHU, Michael DEVINE
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Abstract
A multiband antenna array has a plurality of midband dipoles and a plurality of C-Band dipoles. The C-Band dipoles in clusters of four that surround a single midband dipole and these clusters are arranged in multiple columns. The C-Band dipoles are each disposed over a cruciform aperture formed in a metal layer that is disposed over a cavity formed of a cavity frame that has a plurality of vias that electrically couple to a ground plane. The cavity reflects energy radiated by the cruciform aperture toward the C-Band dipoles. The disclosed multiband antenna array enables dense placement of midband and C-band dipoles while mitigating any interband interference.
Claims15
A multiband antenna array, comprising:
- a reflector;
- a feed and cavity assembly mechanically coupled to the reflector;
- a plurality of first dipoles configured to radiate in a first frequency band, the plurality of first dipoles disposed on the feed and cavity assembly;
- and
- a plurality of second dipoles configured to radiate in a second frequency band, the plurality of second dipoles disposed on the feed and cavity assembly, the second frequency band being higher in frequency than the first frequency band,
- wherein each of the plurality of second dipoles has a patch antenna element that is disposed over a cruciform aperture, wherein the plurality of second dipoles are arranged in two columns and the plurality of first dipoles are arranged in a column that lies between the two columns of second dipoles.
Dependencies are inferred from the claim text.