Extremely low profile ferrite-loaded wideband antenna design
AssigneeOhio State Innovation Foundation
InventorsChi-Chih Chen, Haksu Moon, John L. Volakis
Life of this patent
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Abstract
A very low profile wideband antenna adapted to operate from 30 MHz to 300 MHz or in another desired range. The maximum diameter and height of one embodiment of this antenna is only 60.96 cm and 5.08 cm, respectively. This design is comprised of a fat grounded metallic plate placed 5.08 cm over a ground plane. In one embodiment, ferrite loading strategically placed between the plate and ground plane improves the low frequency gain and the pattern at high frequencies. A minimal amount of ferrite may be used to keep weight low.
Claims21
A method for designing an ultra low-profile VHF antenna, said method comprising:
- providing a ground plane;
- providing a ferrite loading;
- providing a conductive plate having a first end and a second end;
- and
- associating said ground plane, said ferrite loading, and said conductive plate such that said ferrite loading is positioned between said ground plane and said conductive plate, said first end of said conductive plate is shorted to said ground plane, and said second end of said conductive plate is adapted to be placed in electrical communication with an antenna feed.
Dependencies are inferred from the claim text.