US 12,308,664 B2
Antenna device, feed device, and feed method
Masaaki Fujii, Nagano (JP)
Assigned to MINEBEA MITSUMI Inc., Nagano (JP)
Appl. No. 18/570,377
Filed by MINEBEA MITSUMI Inc., Nagano (JP)
PCT Filed Mar. 28, 2022, PCT No. PCT/JP2022/014902
§ 371(c)(1), (2) Date Dec. 14, 2023,
PCT Pub. No. WO2023/276369, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 2021-110324 (JP), filed on Jul. 1, 2021.
Prior Publication US 2024/0283296 A1, Aug. 22, 2024
Int. Cl. G06T 3/047 (2024.01); G06T 7/50 (2017.01); G06T 7/66 (2017.01); G06T 7/73 (2017.01); H01Q 3/26 (2006.01); H01Q 21/06 (2006.01); H02J 50/20 (2016.01); H02J 50/40 (2016.01)
CPC H02J 50/20 (2016.02) [G06T 3/047 (2024.01); G06T 7/50 (2017.01); G06T 7/66 (2017.01); G06T 7/74 (2017.01); H01Q 3/2652 (2013.01); H01Q 21/061 (2013.01); H02J 50/402 (2020.01); G06T 2207/30204 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An antenna device comprising:
an array antenna including multiple antenna elements that are bidimensionally arranged along a first axis and a second axis;
a phase adjuster configured to adjust phases of transmission power signals that are respectively supplied by the multiple antenna elements, with respect to a first axis direction;
an image acquiring device configured to acquire an image through a fisheye lens;
circuitry configured to
convert a first position of a marker that is included in the acquired image, into a second position of polar coordinates on a first plane that includes the first axis and the second axis, the first position being used in the image acquiring device; and
acquire, based on the second position, an elevation angle of a projected position that is obtained by projecting the first position onto a second plane including the first axis and a third axis, the elevation angle being relative to the third axis of the second plane; and
a storage that stores multiple sets of phase data for respective elevation angles, the phase data indicating phases in which the transmission power signals are transmitted by the respective antenna elements to a power receiver that is situated at a position of the marker, the phases being adjusted such that the adjusted phases of the transmission power signals that are received by the antenna elements are matched,
wherein the circuitry is configured to
retrieve, from the storage, the phase data in association with the acquired elevation angle, and
control the phase adjuster such that a direction of a beam, emitted by the array antenna based on the retrieved phase data, defines the elevation angle for the second plane; and
perform power ramping on at least one given transmission power signal among the transmission power signals, in a case where the phase adjuster adjusts the phases of the transmission power signals.