US 12,261,368 B2
Antenna device and communication device
Ryusuke Yamaguchi, Nagaokakyo (JP); and Takaya Nemoto, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Jul. 28, 2022, as Appl. No. 17/875,425.
Application 17/875,425 is a continuation of application No. PCT/JP2021/002074, filed on Jan. 21, 2021.
Claims priority of application No. 2020-014028 (JP), filed on Jan. 30, 2020.
Prior Publication US 2022/0368030 A1, Nov. 17, 2022
Int. Cl. H01Q 21/06 (2006.01); H01Q 1/48 (2006.01); H01Q 19/10 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 1/48 (2013.01); H01Q 19/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna device comprising:
a dielectric substrate;
a ground plane disposed on or in an inner layer of the dielectric substrate;
a feed line disposed on or in the dielectric substrate;
a first antenna element supported on the dielectric substrate; and
a second antenna element supported on a dielectric member disposed on the dielectric substrate,
wherein
the first antenna element and the second antenna element include a first radiating element and a second radiating element connected to the feed line, respectively, and are disposed on a same side of the dielectric substrate as viewed from the ground plane,
with a height of the ground plane being a reference, a top portion of the second antenna element is located higher than a top portion of the first antenna element,
the first antenna element and the second antenna element constitute an array antenna,
the first radiating element and the ground plane constitute a patch antenna,
the second radiating element and the ground plane constitute a patch antenna, and
on an upper surface of the dielectric substrate, the dielectric member that has a permittivity lower than a permittivity of the dielectric substrate is disposed.