US 12,322,859 B2
Foldable electronic device
Jikang Wang, Shanghai (CN); Zhiyuan Xie, Shanghai (CN); Hangfei Tang, Shanghai (CN); Liang Xue, Shanghai (CN); Jiaming Wang, Shanghai (CN); and Dong Yu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 18/255,698
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Dec. 3, 2021, PCT No. PCT/CN2021/135303
§ 371(c)(1), (2) Date Jun. 2, 2023,
PCT Pub. No. WO2022/117069, PCT Pub. Date Jun. 9, 2022.
Claims priority of application No. 202011409265.9 (CN), filed on Dec. 3, 2020.
Prior Publication US 2024/0380095 A1, Nov. 14, 2024
Int. Cl. H01Q 1/24 (2006.01); H01Q 5/328 (2015.01); H01Q 5/335 (2015.01); H01Q 5/385 (2015.01); H01Q 9/42 (2006.01); H04M 1/02 (2006.01)
CPC H01Q 1/245 (2013.01) [H01Q 5/328 (2015.01); H01Q 5/335 (2015.01); H01Q 5/385 (2015.01); H01Q 9/42 (2013.01); H04M 1/0216 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A foldable electronic device, comprising:
a rotating shaft;
a first device body;
a second device body comprising a first ground and coupled to the first device body through the rotating shaft;
an earpiece disposed on the second device body;
a radio frequency source;
an antenna comprising:
a first parasitic radiator disposed on the second device body; and
a main radiator configured to:
dispose on the first device body and couple to the radio frequency source when the foldable electronic device is in an unfolded state; and
dispose relative to the first parasitic radiator at a first interval and couple to the first parasitic radiator through the first interval when the foldable electronic device is in a folded state; and
a first switch control circuit comprising:
a plurality of different first matching branches disposed in parallel connection, wherein each different first matching branch comprises a first matching sub-branch and a second matching sub-branch; and
a first switch component comprising a first end coupled to the first parasitic radiator and a second end coupled to the first ground, and configured to:
switch between the plurality of different first matching branches;
switch to the first matching sub-branch when the foldable electronic device is in the folded state and the earpiece is in an on state; and
switch to the second matching sub-branch when the foldable electronic device is in the folded state and the earpiece is in an off state,
wherein the main radiator is configured to have a first resonant frequency in a first frequency band and the first parasitic radiator is configured to have a second resonant frequency in a second frequency band when the first switch component switches to the first matching sub-branch.