US 12,444,844 B2
Antenna mounting system
Yuuji Kakuya, Nisshin (JP); Kenichirou Sanji, Kariya (JP); Tomokazu Miyashita, Kariya (JP); and Masakazu Ikeda, Nisshin (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Dec. 12, 2022, as Appl. No. 18/079,323.
Application 18/079,323 is a continuation of application No. PCT/JP2021/024123, filed on Jun. 25, 2021.
Claims priority of application No. 2020-116682 (JP), filed on Jul. 6, 2020.
Prior Publication US 2023/0114784 A1, Apr. 13, 2023
Int. Cl. H01Q 9/04 (2006.01); H01Q 1/12 (2006.01); H01Q 1/48 (2006.01); H01Q 3/36 (2006.01)
CPC H01Q 9/0421 (2013.01) [H01Q 1/12 (2013.01); H01Q 1/48 (2013.01); H01Q 3/36 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An antenna mounting system comprising:
an antenna device; and
a conductive base plate made of a conductor on which the antenna device is mounted, wherein
the antenna device includes:
a ground plate made of a conductor with a flat plate shape;
an opposing conductive plate made of a conductor with a flat plate shape, located a predetermined distance away from the ground plate, and electrically connected to a feeder line; and
a short-circuit pin that electrically connects the opposing conductive plate and the ground plate, and
the short-circuit pin is positioned to cause a radio wave radiated from the antenna device in a direction perpendicular to the ground plate such that the radio wave:
has a polarization component that oscillates in a direction parallel to a main plane of polarization of a radio wave radiated from the conductive base plate in the direction perpendicular to the ground plate; and
is shifted in phase from the radio wave radiated from the conductive base plate by a phase difference within a range from 90 degrees to 270 degrees.