US 12,142,827 B2
Antenna module, communication device mounted with the same, and circuit board
Yoshiki Yamada, Nagaokakyo (JP); and Kengo Onaka, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Mar. 25, 2022, as Appl. No. 17/703,984.
Application 17/703,984 is a continuation of application No. PCT/JP2020/026388, filed on Jul. 6, 2020.
Claims priority of application No. 2019-177383 (JP), filed on Sep. 27, 2019.
Prior Publication US 2022/0216605 A1, Jul. 7, 2022
Int. Cl. H01Q 1/48 (2006.01); H01Q 5/307 (2015.01)
CPC H01Q 1/48 (2013.01) [H01Q 5/307 (2015.01)] 20 Claims
OG exemplary drawing
 
1. An antenna module comprising:
a dielectric substrate including a plurality of dielectric layers that are laminated;
a radiation element disposed in or on the dielectric substrate and configured to radiate radio waves in a first polarization direction;
a ground electrode that is positioned to face the radiation element; and
peripheral electrodes that are arranged in a plurality of layers between the radiation element and the ground electrode and that are electrically connected to the ground electrode, wherein
the peripheral electrodes are symmetrically positioned with respect to at least one of a first direction parallel to the first polarization direction or a second direction orthogonal to the first polarization direction.