Back to results
US 2021/0376875 A1Published application
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 combing the up-converted plurality of transmission signals.
Claims13
A wireless device comprising:
- a phase control circuit configured to:
- control each phases of a plurality of transmission signals according to transmission direction of which each of the plurality of transmission signals is output,
- up-convert each frequencies of the plurality of transmission signals of which the phase is controlled,
- an antenna element configured to radiate a signal combing the up-converted plurality of transmission signals.
1 more element
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 the 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 combing 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 mixer configured to down-convert a frequency of an input signal obtained by combining a plurality of reception signals;
- and
- a phase control circuit configured to control a phase of a signal of which the frequency has been down-converted by the mixer according to an arrival direction of a reception signal included in the plurality of reception signals.
Dependencies are inferred from the claim text.