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US 11,646,761 B2Granted
Wireless device
AssigneeFujitsu Limited
InventorToshihiro Shimura
Life of this patent
Estimating the term…
Abstract
A wireless device includes a phase control circuit and an antenna element. The phase control circuit configured to control each of phases frequencies of the plurality of transmission signals according to a transmission direction of which each the plurality of transmission signals is output, up-convert each frequencies of the plurality of transmission signals of which the phase is controlled. The antenna element configured to radiate a signal obtained by combining the upconverted plurality of transmission signals.
Claims13
A wireless device comprising:
- a plurality of antenna elements configured to form a plurality of transmission beams, each of the plurality of transmission beams being configured to transmit a corresponding transmission signal among a plurality of transmission signals;
- and
- a plurality of phase controllers, each of the plurality of phase controllers being coupled to a corresponding antenna element among the plurality of antenna elements, each of the plurality of phase controllers including:
- a plurality of phase control circuits corresponding to the plurality of transmission beams and configured to receive an input of the plurality of transmission signals to be transmitted from the corresponding antenna element, each of the plurality of phase control circuits being a circuit allocated to among the plurality of transmission beams a corresponding transmission beam to be used to transmit a corresponding transmission signal among the plurality of transmission signals, each of the plurality of phase control circuits being configured to output a phase controlled transmission signal by controlling, based on a transmission direction of the corresponding transmission beam, a phase of the corresponding transmission signal, and
- a plurality of mixers, each of the plurality of mixers being allocated to a corresponding phase control circuit among the plurality of phase control circuits, each of the plurality of mixers being configured to output an up-converted signal by up-converting, in response to inputting of the phase controlled transmission signal from the corresponding phase control circuit, a frequency of the phase controlled transmission signal, wherein the up-converted signals output from the plurality of mixers are merged and radiated from the corresponding antenna element.
2 more elements
A wireless device comprising:
- a first mixer configured to up-convert a frequency of an in-phase signal that has a same phase as a first transmission signal included in a plurality of transmission signals using a signal obtained by rotating a first local signal by a rotation amount according to a first transmission direction of the first transmission signal;
- a second mixer configured to up-convert a frequency of a quadrature signal obtained by rotating a phase of the first transmission signal by 90° using a signal obtained by rotating a second local signal of which a phase is rotated by 90° with respect to the first local signal by a rotation amount according to the first transmission direction;
- a third mixer configured to up-convert a frequency of an in-phase signal that has a same phase as a second transmission signal included in the plurality of transmission signals using a signal obtained by rotating the first local signal by a rotation amount according to a second transmission direction of the second transmission signal;
- a fourth mixer configured to up-convert a frequency of a quadrature signal obtained by rotating a phase of the second transmission signal by 90° using a signal obtained by rotating a second local signal of which a phase is rotated by 90° with respect to the first local signal by a rotation amount according to the second transmission direction;
- and
- an antenna element configured to radiate a signal obtained by combining a first signal outputting from the first mixer output, a second signal outputting from the second mixer output, a third signal outputting from the third mixer output, and a fourth signal outputting from the fourth mixer output.
3 more elements
A wireless device comprising:
- a plurality of antenna elements configured to form a plurality of reception beams, each of the plurality of reception beams being configured to receive a corresponding reception signal among a plurality of reception signals;
- and
- a plurality of phase controllers, each of the plurality of phase controllers being coupled to a corresponding antenna element among the plurality of antenna elements, each of the plurality of phase controllers including:
- a plurality of mixers configured to receive, from the corresponding antenna element, an input signal combined with the plurality of reception signals, each of the plurality of mixers being configured to output a down-converted signal by down-converting a frequency of the input signal, and
- a plurality of phase control circuits corresponding to the plurality of reception beams, each of the plurality of phase control circuits being coupled to a corresponding mixer among the plurality of mixers, each of the plurality of phase control circuits being allocated to among the plurality of reception beams a corresponding reception beam used to receive a corresponding reception signal among the plurality of reception signals, each of the plurality of phase control circuits being configured to output a phase controlled signal by controlling, in response to inputting of the down-converted signal from the corresponding mixer, a phase of the down-converted signal in accordance with an arrival direction of the corresponding reception beam, wherein the phase controlled signal output from the each of the plurality of phase control circuits is used to synthesize the corresponding reception signal among the plurality of reception signals.
2 more elements
Dependencies are inferred from the claim text.