US 11,862,859 B2
Antenna device
Takeshi Sampo, Tomioka (JP); and Takayuki Sone, Tomioka (JP)
Assigned to YOKOWO CO., LTD., Tokyo (JP)
Filed by YOKOWO CO., LTD., Tokyo (JP)
Filed on Jan. 4, 2023, as Appl. No. 18/092,950.
Application 18/092,950 is a continuation of application No. 17/163,691, filed on Feb. 1, 2021, granted, now 11,581,659.
Application 17/163,691 is a continuation of application No. PCT/JP2019/029899, filed on Jul. 30, 2019.
Claims priority of application No. 2018-143828 (JP), filed on Jul. 31, 2018.
Prior Publication US 2023/0146537 A1, May 11, 2023
Int. Cl. H01Q 21/24 (2006.01); H01Q 9/16 (2006.01)
CPC H01Q 21/24 (2013.01) [H01Q 9/16 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A MIMO antenna device for spatial multiplexing transmission, comprising:
a first dipole antenna including a pair of first elements connected to a first feeding point and arranged on a first plane, and
a second dipole antenna including a pair of second elements connected to a second feeding point and arranged on a second plane which is parallel to the first plane,
wherein, in the second dipole antenna, the second feeding point overlaps with the first feeding point when viewed from a plane, and
wherein the pair of second elements are arranged to face the pair of first elements in a state in which the pair of second elements are rotated by a predetermined angle from a position at which a second center portion of the second dipole antenna is aligned with a first center portion of the first dipole antenna while maintaining a predetermined space, thereby enabling a stable operation of the MIMO antenna device over a desired frequency band.