US 12,224,488 B2
Wireless communication apparatus
Makoto Aoki, Tokyo (JP); Satoru Omura, Kanagawa (JP); and Yutaka Ishinari, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 28, 2022, as Appl. No. 17/731,609.
Application 17/731,609 is a continuation of application No. PCT/JP2020/040142, filed on Oct. 26, 2020.
Claims priority of application No. 2019-196344 (JP), filed on Oct. 29, 2019.
Prior Publication US 2022/0263236 A1, Aug. 18, 2022
Int. Cl. H01Q 1/52 (2006.01); H01Q 1/24 (2006.01); H01Q 9/26 (2006.01); H01Q 9/42 (2006.01)
CPC H01Q 1/52 (2013.01) [H01Q 1/24 (2013.01); H01Q 9/26 (2013.01); H01Q 9/42 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A wireless communication apparatus comprising:
an antenna including an antenna element having a connection portion and an open end portion, wherein the antenna element has a path length between the connection portion and the open end portion;
a conductor member formed of an electric conductor;
an electric supply unit electrically connected to the connection portion of the antenna element and configured to supply electric power to the antenna; and
an outer housing formed of an electric conductor and configured to enclose the antenna, the conductor member, and the electric supply unit, the outer housing having an opening for allowing electromagnetic waves from the antenna to radiate outward from the outer housing,
wherein the antenna is disposed at a position closer to the opening of the outer housing than to the conductor member, and
the connection portion and a midpoint corresponding to a half length of the path length of the antenna element are located closer to the conductor member than a surface of the open end portion, and the surface of the open end portion is a surface facing the conductor member side.