Toroidal antenna
AssigneeWest Virginia University
InventorKurt L. Van Voorhies
Life of this patent
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Abstract
An antenna is disclosed that has windings that are contrawound in segments on a toroid form and that have opposed currents on selected segments. An antenna is disclosed that has one or more insulated conductor circuits with windings that are contrawound around and over a multiply connected surface, such as a toroidal surface. The insulated conductor circuits may form one or more endless conductive paths around and over the multiply connected surface. The windings may have a helical pattern, poloidal peripheral pattern or may be constructed from a slotted conductor on the toroid. Poloidal loop winds are disclosed with a toroid hub on a toroid that has two plates that provides a capacitive feed to the loops, which are selectively connected to one of the plates. Associated methods are also disclosed.
Claims3
An electromagnetic antenna comprising:
- a toroid;
- a plurality of first conductive loops extending substantially around the toroid, with each of said first conductive loops on a plane intersecting the toroid, and with each of said first conductive loops having a first end and a second end;
- a second conductive loop adjacent said toroid;
- first and second signal carrying terminals;
- and
- each one of said first conductive loops being electrically connected in parallel with respect to each of the other said first conductive loops, with the first end of each of said first conductive loops being electrically connected to said first signal carrying terminal, with the second end of each of said first conductive loops being electrically connected to said second conductive loop, and with said second conductive loop being electrically connected to said second signal carrying terminal.
A method of transmitting an RF signal from an antenna comprising:
- applying said RF signal to poloidally and peripherally wound windings on a toroid;
- using an oscillator to apply another signal to the windings;
- and
- using feedback from the antenna for oscillator tuning and amplification.
Dependencies are inferred from the claim text.