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US 11,145,971 B1Granted
Poynting vector synthesis via coaxially rotating electric and magnetic dipoles
AssigneeRockwell Collins, Inc.
InventorDavid W. Cripe
Life of this patent
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Abstract
An antenna has a rotating magnetic dipole and a rotating electric dipole having parallel axes of rotation, but orthogonal magnetic and electric vectors. The rotational frequency defines the RF carrier to create the electric and magnetic fields necessary to generate the Poynting vector in the immediate vicinity of the antenna. Because there is no energy required to maintain the fields of a permanent magnet or electret, the only power input is that overcoming mechanical friction, and eddy current and hysteretic losses in adjacent conducting structures.
Claims13
An antenna apparatus comprising:
- an electric dipole;
- a magnetic dipole;
- and
- a motor configured to rotate the electric dipole and magnetic dipole about parallel axes,
- wherein:
- the electric dipole and magnetic dipole are disposed and oriented with orthogonal magnetic vectors and electric vectors;
- and
- the electric dipole and magnetic dipole are disposed and oriented to produce a Poynting vector before a Fresnel region defined by the antenna.
5 more elements
A communication system comprising:
- an antenna comprising:
- an electric dipole;
- a magnetic dipole;
- and
- a motor configured to rotate the electric dipole and magnetic dipole about parallel axes;
- and
- at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
- apply a signal to the motor to induce a rotation at a defined carrier frequency.
5 more elements
Dependencies are inferred from the claim text.