US 12,341,273 B2
Antenna unit and communication device
Pengfei Wu, Shanghai (CN); Meng Hou, Shanghai (CN); Hanyang Wang, Reading (GB); and Chien-Ming Lee, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 18/246,801
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
PCT Filed Sep. 9, 2021, PCT No. PCT/CN2021/117539
§ 371(c)(1), (2) Date Mar. 27, 2023,
PCT Pub. No. WO2022/062914, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 202011044876.8 (CN), filed on Sep. 28, 2020.
Prior Publication US 2023/0369769 A1, Nov. 16, 2023
Int. Cl. H01Q 9/42 (2006.01); H01Q 21/20 (2006.01)
CPC H01Q 9/42 (2013.01) [H01Q 21/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna, comprising:
a first radiator, wherein the first radiator comprises a first end and a second end that are opposite to each other, and the second end of the first radiator or a middle position of the first radiator is grounded;
a second radiator, wherein the second radiator comprises a third end and a fourth end that are opposite to each other, the fourth end of the second radiator is disposed away from the first end of the first radiator relative to the third end, and the fourth end of the second radiator or a middle position of the second radiator is grounded;
a feeding circuit, wherein the feeding circuit is configured to feed the first radiator and the second radiator, at the first end of the first radiator and the third end of the second radiator; and
a tuning circuit, wherein the tuning circuit is configured to selectively connect the feeding circuit to the first end of the first radiator to feed the first radiator, and selectively connect the feeding circuit to the third end of the second radiator to feed the second radiator, wherein
the antenna has different main radiation directions when the tuning circuit connects the feeding circuit to only the first radiator and when the tuning circuit connects the feeding circuit to only the second radiator, and the main radiation direction of the antenna is a direction with a greatest directivity in a radiation pattern of the antenna.