eLORAN receiver and antenna with ferromagnetic body and windings and related methods
AssigneeEagle Technology, LLC
InventorFrancis E. Parsche
Life of this patent
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Abstract
An eLORAN receiver may include an antenna and eLORAN receiver circuitry coupled to the antenna. The antenna may have a ferromagnetic core including a ferromagnetic medial portion and ferromagnetic arms extending outwardly from the ferromagnetic medial portion, a respective electrically conductive winding surrounding each of the ferromagnetic arms, and an electrically conductive patch element adjacent the ferromagnetic core.
Claims14
An enhanced LOng-RAnge Navigation (eLORAN) receiver comprising:
- an antenna and eLORAN receiver circuitry coupled thereto, the antenna configured to receive an eLORAN broadcast signal and comprising
- a ferromagnetic core comprising a ferromagnetic medial portion and a plurality of ferromagnetic arms extending outwardly therefrom,
- a respective electrically conductive winding surrounding each of the plurality of ferromagnetic arms and configured to respond to a respective H-field signal of the eLORAN broadcast signal, and
- an electrically conductive patch element adjacent said ferromagnetic core and configured to respond to an E-field signal of the eLORAN broadcast signal;
- the eLORAN receiver circuitry configured to apply a compensation factor for position error correction based upon a difference between an E-field signal amplitude and H-field signal amplitudes.
An antenna to be coupled to enhanced LOng-RAnge Navigation (eLORAN) receiver circuitry, the antenna configured to receive an eLORAN broadcast signal, the antenna comprising:
- a ferromagnetic core comprising a ferromagnetic medial portion and a plurality of ferromagnetic arms extending outwardly therefrom;
- a respective electrically conductive winding surrounding each of the plurality of ferromagnetic arms and configured to respond to a respective H-field signal of the eLORAN broadcast signal;
- an electrically conductive patch element adjacent a first side of said ferromagnetic core and configured to respond to an E-field signal of the eLORAN broadcast signal;
- and
- an electrically conductive ground plane adjacent a second side of said ferromagnetic core opposite the first side thereof.
A method for making an enhanced LOng-RAnge Navigation (eLORAN) receiver configured to receive an eLORAN broadcast signal, the method comprising:
- forming a ferromagnetic core comprising a ferromagnetic medial portion and a plurality of ferromagnetic arms extending outwardly therefrom;
- positioning a respective electrically conductive winding surrounding each of the plurality of ferromagnetic arms and configured to respond to a respective H-field signal of the eLORAN broadcast signal;
- positioning an electrically conductive patch element adjacent the ferromagnetic core and configured to respond to an E-field signal of the eLORAN broadcast signal:
- and
- coupling eLORAN receiver circuitry to the respective electrically conductive winding and patch element to apply a compensation factor for position error correction based upon a difference between E-field signal and H-field signal amplitudes.
Dependencies are inferred from the claim text.