US 12,278,422 B2
Suppression of reflected wave interference from antenna-mounting plate in service link of haps
Shoichi Sudo, Tokyo (JP); Kenji Hoshino, Tokyo (JP); and HoYu Lin, Tokyo (JP)
Assigned to SoftBank Corp., Tokyo (JP)
Appl. No. 18/012,706
Filed by SoftBank Corp., Tokyo (JP)
PCT Filed Jun. 29, 2021, PCT No. PCT/JP2021/024574
§ 371(c)(1), (2) Date Dec. 23, 2022,
PCT Pub. No. WO2022/004728, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2020-115954 (JP), filed on Jul. 3, 2020.
Prior Publication US 2023/0335888 A1, Oct. 19, 2023
Int. Cl. H01Q 1/28 (2006.01); H01Q 3/06 (2006.01); H01Q 3/26 (2006.01); H01Q 19/02 (2006.01); H01Q 21/20 (2006.01); H04B 7/185 (2006.01)
CPC H01Q 1/28 (2013.01) [H01Q 3/06 (2013.01); H01Q 3/26 (2013.01); H01Q 19/021 (2013.01); H01Q 21/20 (2013.01); H04B 7/18504 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An aerial-staying type communication relay apparatus for wirelessly communicating with a terminal apparatus, comprising:
a cylinder type antenna having a main body with a cylindrical peripheral surface shape or a polygonal prism peripheral surface shape and plural antenna elements disposed so as to be distributed along an outer peripheral surface of the main body, the antenna forming a cell for performing a radio communication of a service link to and from the terminal apparatus; and
an antenna-mounting member to which a base face of the cylinder type antenna is mounted, and
wherein a layer of radio wave absorber or a layer of frequency-selective electromagnetic shielding member that selectively shields a radio wave having a frequency of the service link is provided on an outer surface of the antenna-mounting member so that the outer surface is not exposed.