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US 11,777,230 B2Granted
Antenna device, system, and transmission/reception method
AssigneeKabushiki Kaisha Toshiba
InventorsXu Zhu, Hiroki Mori
Life of this patent
Estimating the term…
Abstract
According to one embodiment, an antenna device comprises an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna, and a rotation device configured to rotate the antenna panel. A first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna. A second radio wave is irradiated from the first transmission antenna when the rotation angle is a second angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna.
Claims32
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center,
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- and
- a distance from the rotation center to the first transmission antenna is longer than any of distances from the rotation center to the first and the second reception antennas.
5 more elements
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center,
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- and
- a distance from the rotation center to the first transmission antenna is shorter than any of distances from the rotation center to the first and the second reception antennas.
5 more elements
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a third reception antenna and a fourth reception antenna;
- the first transmission antenna, the first, the second, the third, and the fourth reception antennas are disposed in a cross shape having four arms;
- a distance from the rotation center to the first transmission antenna is shorter than any of distances from the rotation center to the first, the second, the third, and the fourth reception antennas;
- and
- at least one reception antenna is disposed on each of the four arms.
8 more elements
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center,
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a second transmission antenna;
- a third radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the first angle, and a reflected radio wave of the third radio wave is received by the first reception antenna and the second reception antenna;
- a fourth radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the second angle, and a reflected radio wave of the fourth radio wave is received by the first reception antenna and the second reception antenna;
- and
- a distance from the rotation center to the first transmission antenna and a distance from the rotation center to the second transmission antenna are longer than any of distances from the rotation center to the first and the second reception antennas.
8 more elements
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center,
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a second transmission antenna;
- a third radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the first angle, and a reflected radio wave of the third radio wave is received by the first reception antenna and the second reception antenna;
- a fourth radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the second angle, and a reflected radio wave of the fourth radio wave is received by the first reception antenna and the second reception antenna;
- and
- a distance from the rotation center to the first transmission antenna and a distance from the rotation center to the second transmission antenna are shorter than any of distances from the rotation center to the first and the second reception antennas.
8 more elements
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center,
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a second transmission antenna;
- a third radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the first angle, and a reflected radio wave of the third radio wave is received by the first reception antenna and the second reception antenna;
- a fourth radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the second angle, and a reflected radio wave of the fourth radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a third reception antenna and a fourth reception antenna;
- the first transmission antenna, the second transmission antenna, the first, the second, the third, and the fourth reception antennas are disposed in a cross shape having four arms;
- a distance from the rotation center to the first transmission antenna or a distance from the rotation center to the second transmission antenna is shorter than any of distances from the rotation center to the first, the second, the third, and the fourth reception antennas;
- and
- at least one reception antenna is disposed on each of the four arms.
11 more elements
An antenna device comprising:
- an antenna panel including a first transmission antenna, a first reception antenna, and a second reception antenna;
- and
- a rotation device configured to rotate the antenna panel around a point on the antenna panel as a rotation center,
- wherein:
- a first radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a first angle and a reflected radio wave of the first radio wave is received by the first reception antenna and the second reception antenna;
- a second radio wave is irradiated from the first transmission antenna when a rotation angle of the antenna panel is a second angle different from the first angle and a reflected radio wave of the second radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a second transmission antenna;
- a third radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the first angle, and a reflected radio wave of the third radio wave is received by the first reception antenna and the second reception antenna;
- a fourth radio wave is irradiated from the second transmission antenna when a rotation angle of the antenna panel is the second angle, and a reflected radio wave of the fourth radio wave is received by the first reception antenna and the second reception antenna;
- the antenna panel further includes a third reception antenna;
- the first transmission antenna, the second transmission antenna, the first, the second, and the third reception antennas are disposed in a Y shape having three arms;
- a distance from the rotation center to the first transmission antenna or a distance from the rotation center to the second transmission antenna is shorter than any of distances from the rotation center to the first, the second, and the third reception antennas;
- and
- at least one reception antenna is disposed on each of the three arms.
11 more elements
A system comprising:
- a reception device configured to:
- receive a reflected radio wave of a first radio wave when a rotation angle of an antenna panel including a transmission antenna and a first reception antenna and a second reception antenna is a first angle, the rotation angle being an angle around a point on the antenna panel as a rotation center, the first radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna, and
- receive a reflected radio wave of a second radio wave, when a rotation angle of the antenna panel is a second angle, the second radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna;
- and
- an output device configured to output information about the object,
- wherein a distance from the rotation center to the transmission antenna is longer than any of distances from the rotation center to the first and the second reception antennas.
3 more elements
A transmission/reception method comprising:
- receiving a reflected radio wave of a first radio wave when a rotation angle of an antenna panel including a transmission antenna and a first reception antenna and a second reception antenna is a first angle, the rotation angle being an angle around a point on the antenna panel as a rotation center, the first radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna;
- receiving a reflected radio wave of a second radio wave, when a rotation angle of the antenna panel is a second angle, the second radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna;
- and
- outputting information about the object,
- wherein a distance from the rotation center to the transmission antenna is longer than any of distances from the rotation center to the first and the second reception antennas.
2 more elements
A system comprising:
- a reception device configured to:
- receive a reflected radio wave of a first radio wave when a rotation angle of an antenna panel including a transmission antenna and a first reception antenna and a second reception antenna is a first angle, the rotation angle being an angle around a point on the antenna panel as a rotation center, the first radio wave being irradiated from the transmission antenna, reflected by an object, and
- received by the first reception antenna and the second reception antenna, and receive a reflected radio wave of a second radio wave, when a rotation angle of the antenna panel is a second angle, the second radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna;
- and
- an output device configured to output information about the object,
- wherein a distance from the rotation center to the transmission antenna is shorter than any of distances from the rotation center to the first and the second reception antennas.
3 more elements
A transmission/reception method comprising:
- receiving a reflected radio wave of a first radio wave when a rotation angle of an antenna panel including a transmission antenna and a first reception antenna and a second reception antenna is a first angle, the rotation angle being an angle around a point on the antenna panel as a rotation center, the first radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna;
- receiving a reflected radio wave of a second radio wave, when a rotation angle of the antenna panel is a second angle, the second radio wave being irradiated from the transmission antenna, reflected by an object, and received by the first reception antenna and the second reception antenna;
- and
- outputting information about the object,
- wherein a distance from the rotation center to the transmission antenna is shorter than any of distances from the rotation center to the first and the second reception antennas.
2 more elements
Dependencies are inferred from the claim text.