US 12,261,371 B2
Antenna module and communication device incorporating the same
Kaoru Sudo, Nagaokakyo (JP); Kengo Onaka, Nagaokakyo (JP); and Yoshiki Yamada, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Dec. 29, 2022, as Appl. No. 18/090,519.
Application 18/090,519 is a continuation of application No. PCT/JP2021/016805, filed on Apr. 27, 2021.
Claims priority of application No. 2020-114111 (JP), filed on Jul. 1, 2020.
Prior Publication US 2023/0139670 A1, May 4, 2023
Int. Cl. H01Q 21/30 (2006.01); H01Q 1/24 (2006.01); H01Q 1/48 (2006.01); H01Q 9/04 (2006.01); H01Q 21/06 (2006.01)
CPC H01Q 21/30 (2013.01) [H01Q 1/243 (2013.01); H01Q 1/48 (2013.01); H01Q 9/045 (2013.01); H01Q 21/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An antenna module comprising:
a first radiating element having a flat plate shape, the first radiating element configured to radiate radio waves in a first frequency band;
a second radiating element having a flat plate shape, the second radiating element configured to radiate radio waves in a second frequency band, the second frequency band being higher in frequency than the first frequency band; and
a ground electrode arranged opposite the first radiating element and the second radiating element, wherein
in a plan view, as seen from a normal direction of the first radiating element, a distance from a center of the first radiating element to an end portion of the ground electrode in a first direction is shorter than ½ of a free space wavelength of a radio wave in the first frequency band radiated from the first radiating element, the radio wave having a single polarization direction,
a feed point of the first radiating element is arranged at a location shifted in a second direction from the center of the first radiating element, the second direction being different from the first direction,
a feed point of the second radiating element is arranged at a location shifted in a third direction from a center of the second radiating element, and
another feed point of the second radiating element is arranged at a location shifted in a fourth direction from the center of the second radiating element, the fourth direction being different from the third direction.