Full-duplex wireless data transfer for rotary joints
AssigneeAnalog Devices International Unlimited Company
InventorsMohamed Alaaeldin Moharram Hassan, Po-Hao David A. Yeh, Mark A. D'Amato, Anton Patyuchenko, John N. Poelker, Christopher P. O'Neill, Omar El Sayed Wadah
Life of this patent
Estimating the term…
Abstract
Radio Frequency (RF) systems configured to implement full-duplex wireless data transfer for rotary joints are disclosed. An example RF system includes a 60 GHz short distance communication link implemented using elliptically (e.g., circularly) polarized antennas. Such a system may provide a mm-wave, high-speed, wideband wireless communication link in a manner that is associated with simpler design and operation, mechanical integrity, and reduced power consumption, compared to alternative solutions.
Claims20
A wireless communication system for a rotary joint assembly, the wireless communication system comprising:
- a first transceiver;
- and
- a second transceiver,
- wherein each of the first transceiver and second transceiver includes:
- a receive (RX) antenna array to capture radio frequency (RF) radiation within a fixed RX beam, and to generate an RX signal based on the RF radiation,
- a transmit (TX) antenna array to transmit second RF radiation as a TX beam, based on a fixed TX signal,
- an RX processing circuitry to apply an on-off keying (OOK) demodulation to a signal based on the RX signal to generate a second signal indicative of data encoded in the RF radiation, and
- a TX processing circuitry to apply an OOK modulation to generate the TX signal that is based on a third signal indicative of data to be encoded in the second RF radiation,
- wherein, for each of the first transceiver and second transceiver:
- a beamwidth of each of the fixed RX beam and the fixed TX beam is between about 20 degrees and 45 degrees, and
- wherein:
- the TX antenna array of the first transceiver is to transmit the second RF radiation that is left-hand elliptically polarized,
- the TX antenna array of the second transceiver is to transmit the second RF radiation that is right-hand elliptically polarized,
- the RX antenna array of the first transceiver is to capture the RF radiation that is right-hand elliptically polarized, and
- the RX antenna array of the second transceiver is to capture the RF radiation that is left-hand elliptically polarized.
A rotary joint assembly, comprising:
- a first component;
- and
- a second component, wherein at least one of the first component or the second component is to rotate with respect to the other one,
- wherein each of the first component and the second component includes a transceiver that includes:
- a receive (RX) antenna array to capture radio frequency (RF) radiation, as a fixed RX beam, and to generate an RX signal based on the RF radiation, and
- a transmit (TX) antenna array to transmit second RF radiation, as a fixed TX beam, based on a TX signal, and
- wherein:
- the RX antenna array of the transceiver of the first component is to capture the RF radiation that is right-hand elliptically polarized,
- the RX antenna array of the transceiver of the second component is to capture the RF radiation that is left-hand elliptically polarized,
- the TX antenna array of the transceiver of the first component is to transmit the second RF radiation that is left-hand elliptically polarized,
- the TX antenna array of the transceiver of the second component is to transmit the second RF radiation that is right-hand elliptically polarized, and
- during operation, the fixed TX beam of the transceiver of the first component is oriented substantially towards the RX antenna array of the transceiver of the second component, and the fixed TX beam of the transceiver of the second component is oriented substantially towards the RX antenna array of the transceiver of the first component.
A radio frequency (RF) transceiver for data transmission in a rotary joint assembly, the RF transceiver comprising:
- a receive (RX) antenna array to capture radio frequency (RF) radiation and to generate an RX signal based on the RF radiation, wherein the RF radiation is in an RX beam oriented in a fixed direction with respect to the RX antenna array;
- and
- a transmit (TX) antenna array to transmit second RF radiation based on a TX signal, wherein the RF radiation transmitted by the TX antenna array is in a TX beam oriented in a fixed direction with respect to the TX antenna array, and
- wherein:
- the RX antenna array is to capture the RF radiation that is right-hand elliptically polarized and the TX antenna array is to transmit the second RF radiation that is left-hand elliptically polarized, or the RX antenna array is to capture the RF radiation that is left-hand elliptically polarized and the TX antenna array is to transmit the second RF radiation that is right-hand elliptically polarized.
Dependencies are inferred from the claim text.