US 12,237,577 B2
Cavity-backed slot antenna system
Shih-Hsun Chang, Taipei (TW); Wei-Lin Tsai, Taipei (TW); Zhi-Zeng Cheng, Taipei (TW); You-Fu Cheng, Taipei (TW); and Tsung-Hsun Hsieh, Taipei (TW)
Assigned to ASUSTEK COMPUTER INC., Taipei (TW)
Filed by ASUSTeK COMPUTER INC., Taipei (TW)
Filed on Sep. 21, 2022, as Appl. No. 17/949,277.
Claims priority of application No. 110212376 (TW), filed on Oct. 20, 2021.
Prior Publication US 2023/0122470 A1, Apr. 20, 2023
Int. Cl. H01Q 13/18 (2006.01); H01Q 1/22 (2006.01); H01Q 5/378 (2015.01)
CPC H01Q 13/18 (2013.01) [H01Q 1/2266 (2013.01); H01Q 5/378 (2015.01)] 14 Claims
OG exemplary drawing
 
1. A cavity-backed slot antenna system comprising:
a housing of an electronic device;
a metal cavity, located in the housing, wherein the metal cavity comprises an opening and a closed surface opposite to each other, and a slot is arranged on the closed surface;
a supporting element, located in the metal cavity;
an antenna device, located in the metal cavity and on the supporting element, to expose one side surface of the antenna device from the slot, wherein the antenna device comprises a feed source;
a conductive post, penetrating the antenna device and connecting to the metal cavity; and
a coupling metal part, located in the housing and adjacent to the opening of the metal cavity, wherein the coupling metal part and the feed source of the antenna device form a resonant mode.