Three-Dimensional Isotropic Power Reception System and Method thereof
OwnerDavid Alan Garreninventor
Life of this patent
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Abstract
A system for isotropically receiving radio frequency (RF) energy, the system comprising: a transmitter comprising a transmit structure configured to radiate an omnidirectional RF power pattern; a receiver configured to receive linearly polarized RF energy, the receiver further comprising a receiver antenna at a location r={r, θ, Φ}, wherein r is a line of site distance from the transmitter to the receiver, θ is a polar angle, and Φ is an azimuthal; and wherein the receiver antenna is oriented towards the transmitter at all locations r.
Claims20
A system for isotropically receiving radio frequency (RF) energy, the system comprising:
- a transmitter comprising a transmit structure configured to radiate an omnidirectional RF power pattern;
- a receiver configured to receive linearly polarized RF energy, the receiver further comprising a receiver antenna at a location r={r, θ, Φ}, wherein r is a line of site distance from the transmitter to the receiver, θ is a polar angle, and Φ is an azimuthal;
- and wherein the receiver antenna is oriented towards the transmitter at all locations r.
An isotropic radio frequency (RF) communication system comprising:
- a communications transmitter comprising a transmit structure configured to radiate an omnidirectional RF power pattern;
- a communications receiver configured to receive linearly polarized RF energy, and the communications receiver further comprising a receiver antenna at a location r={r, θ, Φ};
- and
- wherein the receiver antenna is oriented towards the communications transmitter at all locations r.
A method of receiving radio frequency (RF) energy isotropically comprising:
- providing a radio frequency transmitter configured to radiate an omnidirectional RF power pattern;
- providing an RF receiver configured to receive linearly polarized RF energy, the RF receiver further comprising a receiver antenna at a location r={r, θ, Φ}, wherein the receiver antenna is oriented towards the RF transmitter at all locations r;
- providing one or more electric current densities;
- distributing, by a distribution network, the one or more electric current densities to feed each of the one or more antennas a first current density and a second current density, wherein a first current is Kθ(r, t)={tilde over (K)}0 cos(ωt±Φ) and a second current is KΦ(r, t)=±{tilde over (K)}0 cos(θ) sin(ωt±Φ), and wherein the one or more electric current density rotate azimuthally around a surface of a contoured volume or a surface, wherein at any fixed spatial location r on the surface of the sphere, the orthogonal {circumflex over (θ)}(θ, Φ) and {circumflex over (Φ)}(Φ) components of K(r,t) are π/2 radians out of phase, wherein Kθ(r, t) and KΦ(r, t) are the electric current density on a surface of the transmit structure as a function of a position vector (r) and time (t), ω is the angular frequency of rotation, θ is a polar angle, and Φ is an azimuthal;
- and
- radiating, by the antenna array, a cumulative power pattern proportional to 1+cosine2(θ).
Dependencies are inferred from the claim text.