Systems and methods for focusing beams with mode division multiplexing
First Claim
1. A method for focusing an orbital angular momentum (OAM) multiplexed beam, comprising:
- receiving an OAM multiplexed signal from a data processing source, the OAM multiplexed signal including a plurality of data streams each having a unique orbital angular momentum applied thereto and multiplexed together within the OAM multiplexed signal, each of the unique orbital angular momentum having a beam helicity value greater than l=2;
splitting the OAM multiplexed signal into a plurality of OAM multiplexed signals;
providing each of the plurality of OAM multiplexed signals to a transmitting antenna of a plurality of transmitting antennas of an antenna array;
controlling a timing of transmissions of each of the plurality of OAM multiplexed signals from an associated transmitting antenna of the plurality of transmitting antennas to cause a transmitted plurality of OAM multiplexed signals to focus at a predetermined focus point located below ground at substantially a same time to overcome a divergence of the transmitted plurality of OAM multiplexed signals caused by the beam helicity value of greater than l=2 for each of the unique orbital angular momentum; and
transmitting each of the plurality of OAM multiplexed signals from an associated transmitting antenna of the antenna array toward the predetermined focus point located below the ground as a transmission beam in accordance with the timing.
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Accused Products
Abstract
A system for focusing an orbital angular momentum (OAM) multiplexed beam comprising OAM signal processing circuitry for generating an OAM multiplexed signal. The OAM multiplexed signal includes a plurality of data streams each having a unique orbital angular momentum applied thereto and multiplexed together within the OAM multiplexed signal. Each unique orbital angular momentum has a beam helicity value greater than l=2. An antenna array control circuit controls transmission of the multiplexed OAM signal from each of a plurality of antennas in an antenna array toward a focus point located below the ground as a transmission beam to cause the transmitted OAM multiplexed signals to converge at the focus point below the ground at substantially a same time to overcome a divergence of the transmitted plurality of OAM multiplexed signals caused by the beam helicity value of greater than l=2 for each of the unique orbital angular momentum.
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Citations
14 Claims
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1. A method for focusing an orbital angular momentum (OAM) multiplexed beam, comprising:
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receiving an OAM multiplexed signal from a data processing source, the OAM multiplexed signal including a plurality of data streams each having a unique orbital angular momentum applied thereto and multiplexed together within the OAM multiplexed signal, each of the unique orbital angular momentum having a beam helicity value greater than l=2; splitting the OAM multiplexed signal into a plurality of OAM multiplexed signals; providing each of the plurality of OAM multiplexed signals to a transmitting antenna of a plurality of transmitting antennas of an antenna array; controlling a timing of transmissions of each of the plurality of OAM multiplexed signals from an associated transmitting antenna of the plurality of transmitting antennas to cause a transmitted plurality of OAM multiplexed signals to focus at a predetermined focus point located below ground at substantially a same time to overcome a divergence of the transmitted plurality of OAM multiplexed signals caused by the beam helicity value of greater than l=2 for each of the unique orbital angular momentum; and transmitting each of the plurality of OAM multiplexed signals from an associated transmitting antenna of the antenna array toward the predetermined focus point located below the ground as a transmission beam in accordance with the timing. - View Dependent Claims (2, 3, 4, 5)
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6. A system for focusing an orbital angular momentum (OAM) multiplexed beam, comprising:
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OAM signal processing circuitry for generating an OAM multiplexed signal, the OAM multiplexed signal including a plurality of data streams each having a unique orbital angular momentum applied thereto and multiplexed together within the OAM multiplexed signal, each of the unique orbital angular momentum comprising a beam helicity value greater than l=2; a plurality of antennas comprising an antenna array; an antenna array control circuit for controlling transmission of the multiplexed OAM signal from each of the plurality of antennas in the antenna array toward a focus point located below ground as a transmission beam to cause a transmitted plurality of OAM multiplexed signals to converge at the focus point below the ground at substantially a same time to overcome a divergence of the transmitted plurality of OAM multiplexed signals caused by the beam helicity value of greater than l=2 for each of the unique orbital angular momentum. - View Dependent Claims (7, 8, 9, 10)
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11. A controller for an antenna array, comprising:
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an interface for interconnecting the controller with the antenna array comprising a plurality of transmitting antennas; and a processor for generating control signals for controlling transmissions of an orbital angular momentum multiplexed signal from the antenna array, the OAM multiplexed signal including a plurality of data streams each having a unique orbital angular momentum applied thereto and multiplexed together within the OAM multiplexed signal, each of the unique orbital angular momentum having a beam helicity value greater than l=2, the processor configured to generate control signals to cause the antenna array to transmit the OAM multiplexed signal from each of the plurality of transmitting antennas of the antenna array toward a focus point located below ground as a transmission beam and control a timing of the transmissions of the OAM multiplexed signal from each of the plurality of transmitting antennas of the antenna array to cause a transmitted plurality of OAM multiplexed signal from each of the plurality of transmitting antennas to converge at the focus point below the ground at substantially a same time to overcome a divergence of the transmitted plurality of OAM multiplexed signals caused by the beam helicity value of greater than l=2 for each of the unique orbital angular momentum. - View Dependent Claims (12, 13, 14)
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Specification