US 12,456,823 B2
Antenna device
Kohei Haratani, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Oct. 26, 2023, as Appl. No. 18/494,855.
Application 18/494,855 is a continuation of application No. PCT/JP2022/012229, filed on Mar. 17, 2022.
Claims priority of application No. 2021-076496 (JP), filed on Apr. 28, 2021.
Prior Publication US 2024/0055774 A1, Feb. 15, 2024
Int. Cl. H01Q 21/06 (2006.01); H01Q 1/52 (2006.01); H01Q 13/08 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 1/52 (2013.01); H01Q 13/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna device comprising:
a first substrate provided with a ground extending in a first direction; and
a second substrate mounted on the first substrate, wherein
the second substrate includes
a first antenna element,
a second antenna element,
a first surface, and
a second surface opposite to the first surface,
the first antenna element and the second antenna element are arranged side by side in the first direction on the first surface or in or on a layer between the first surface and the second surface, and
a recessed portion recessed toward the first surface is formed in a region of the second surface of the second substrate between the first antenna element and the second antenna element,
wherein
the second surface is provided with a terminal portion for mounting the second substrate on the first substrate,
the recessed portion is formed in a region of the second substrate between at least one of the first antenna element and the second antenna element, and the terminal portion,
the terminal portion includes
a first terminal portion that is provided in a region of the second surface on a side close to the first antenna element with respect to the recessed portion, and
a second terminal portion that is provided in a region of the second surface on a side close to the second antenna element with respect to the recessed portion, and
the recessed portion is formed in a region of the second substrate between the first antenna element and the second terminal portion, and between the second antenna element and the first terminal portion.