US 11,901,644 B2
Antenna device, antenna module, and communication device
Hideki Ueda, Kyoto (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed on May 7, 2021, as Appl. No. 17/314,454.
Application 17/314,454 is a continuation of application No. PCT/JP2019/042311, filed on Oct. 29, 2019.
Claims priority of application No. 2018-211160 (JP), filed on Nov. 9, 2018.
Prior Publication US 2021/0280970 A1, Sep. 9, 2021
Int. Cl. H01Q 3/24 (2006.01); H01Q 9/04 (2006.01); H01Q 9/32 (2006.01)
CPC H01Q 3/24 (2013.01) [H01Q 9/0421 (2013.01); H01Q 9/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna device comprising:
a substrate;
a ground plane provided in or on the substrate;
at least one composite antenna provided in or on the substrate; and
a power feeding line configured to supply power to the composite antenna, wherein:
the composite antenna includes:
a patch antenna comprising a power feeding element and the ground plane, and
at least one linear antenna configured to allow a flow of an electric current having a component in a perpendicular direction with respect to the ground plane, and
the power feeding line includes:
a main line connected to the power feeding element, and
a branch line branched from the main line and connected to the linear antenna.