Orbital angular momentum (oam) mode multiplexing transmission system
AssigneeIntel Corporation
InventorsHossein Alavi, Harry G. Skinner, Adesoji J. Sajuyigbe
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Abstract
Orbital angular momentum (OAM)-based multiplexing includes accessing distinct data streams to be multiplexed and transmitted according to a corresponding plurality of OAM modes. The OAM-based multiplexing further includes generating a set of antenna element-specific signals corresponding to individual antenna elements of an antenna array. Individual ones of the antenna element-specific signals are based on corresponding distinct data streams.
Claims49
An orbital angular momentum (OAM) mode multiplexing transmission system comprising:
- an antenna array comprising a plurality of antenna elements arranged in a circular ring pattern;
- circuitry to multiplex a plurality of data streams to generate a set of antenna element-specific signals for simultaneous transmission of a plurality of spatially-multiplexed OAM modes;
- and
- RF circuitry to upconvert the antenna element-specific signals for transmission by a respective one of the antenna elements of the antenna array,
- wherein the spatially-multiplexed OAM modes comprise at least OAM mode +2, OAM mode +1, and OAM mode 0, and
- wherein the antenna array is configured to generate a spiral phase front in a propagation direction for each of the spatially-multiplexed OAM modes.
A digital signal processor (DSP) configured for operation in an orbital angular momentum (OAM) mode multiplexing transmission system, the DSP configured to:
- multiplex a plurality of data streams to generate a set of antenna element-specific signals for simultaneous transmission of a plurality of spatially-multiplexed OAM modes by an antenna array comprising a plurality of antenna elements arranged in a circular ring pattern;
- and
- provide the antenna element-specific signals to RF circuitry for upconversion and subsequent transmission by a respective one of the antenna elements of the antenna array,
- wherein the spatially-multiplexed OAM modes comprise at least OAM mode +2, OAM mode +1, and OAM mode 0, and
- wherein the antenna element-specific signals are generated by DSP for generation of a spiral phase front by the antenna array in a propagation direction for each spatially-multiplexed OAM modes.
An application specific integrated circuit (ASIC) configured for operation in an orbital angular momentum (OAM) mode multiplexing transmission system, the ASIC configured to:
- multiplex a plurality of data streams to generate a set of antenna element-specific signals for simultaneous transmission of a plurality of spatially-multiplexed OAM modes by an antenna array comprising a plurality of antenna elements arranged in a circular ring pattern, and
- provide the antenna element-specific signals to RF circuitry for upconversion and subsequent transmission by a respective one of the antenna elements of the antenna array,
- wherein the spatially-multiplexed OAM modes comprise at least OAM mode +2, OAM mode +1 and OAM mode 0, and
- wherein the antenna element-specific signals are generated by ASIC for generation of a spiral phase front by the antenna array in a propagation direction for each spatially-multiplexed OAM modes.
A field-programmable gate array (FPGA) configured for operation in an orbital angular momentum (OAM) mode multiplexing transmission system, the FPGA configured to:
- multiplex a plurality of data streams to generate a set of antenna element-specific signals for simultaneous transmission of a plurality of spatially-multiplexed OAM modes by an antenna array comprising a plurality of antenna elements arranged in a circular ring pattern, and
- provide the antenna element-specific signals to RF circuitry for upconversion and subsequent transmission by a respective one of the antenna elements of the antenna array,
- wherein the spatially-multiplexed OAM modes comprise at least OAM mode +2, OAM mode +1, and OAM mode 0, and
- wherein the antenna element-specific signals are generated by FPGA for generation of a spiral phase front by the antenna array in a propagation direction for each spatially-multiplexed OAM modes.
A backhaul station configured for transmission of orbital angular momentum (OAM) mode multiplexing transmissions, the backhaul station comprising:
- an antenna array comprising a plurality of antenna elements arranged in a circular ring pattern;
- circuitry to multiplex a plurality of data streams to generate a set of antenna element-specific signals for simultaneous transmission of a plurality of spatially-multiplexed OAM modes;
- and
- RF circuitry to upconvert the antenna element-specific signals for transmission by a respective one of the antenna elements of the antenna array,
- wherein the spatially-multiplexed OAM modes comprise at least OAM mode +2, OAM mode +1, and OAM mode 0, and
- wherein the antenna array is configured to generate a spiral phase front in a propagation direction for each of the spatially-multiplexed OAM modes.
A method for an orbital angular momentum (OAM) mode multiplexing comprising:
- multiplexing a plurality of data streams to generate a set of antenna element-specific signals for simultaneous transmission of a plurality of spatially-multiplexed OAM modes by an antenna array comprising a plurality of antenna elements arranged in a circular ring pattern;
- and
- providing the antenna element-specific signals to RF circuitry for upconversion and subsequent transmission by a respective one of the antenna elements of the antenna array,
- wherein the spatially-multiplexed OAM modes comprise at least OAM mode +2, OAM mode +1, and OAM mode 0, and
- wherein the antenna element-specific signals are generated by method for generation of a spiral phase front by the antenna array in a propagation direction for each spatially-multiplexed OAM modes.
Dependencies are inferred from the claim text.