US 12,407,102 B2
Antenna system and electronic device
Ning Ma, Shenzhen (CN); Ben Lai, Wuhan (CN); Dong Yu, Shanghai (CN); Pengfei Wu, Shanghai (CN); and Yuan Zhou, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 18/043,278
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
PCT Filed Aug. 2, 2021, PCT No. PCT/CN2021/110098
§ 371(c)(1), (2) Date Feb. 27, 2023,
PCT Pub. No. WO2022/042219, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 202010884837.2 (CN), filed on Aug. 28, 2020.
Prior Publication US 2023/0335908 A1, Oct. 19, 2023
Int. Cl. H01Q 5/35 (2015.01); H01Q 1/22 (2006.01); H01Q 1/24 (2006.01)
CPC H01Q 5/35 (2015.01) [H01Q 1/2291 (2013.01); H01Q 1/245 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna system, comprising: a first antenna, wherein the first antenna comprises an antenna radiator, the antenna radiator is strip-shaped, the antenna radiator has a first antenna feed point and an antenna ground point that are spaced in a length direction of the antenna radiator, the first antenna feed point is connected to a first antenna radio frequency source to receive a first radio frequency signal output by the first antenna radio frequency source, and the antenna ground point is connected to a ground, wherein:
the antenna radiator has a first end and a second end, a first radiator section in which the first end is located and a second radiator section in which the second end is located being used as a radiator of a second antenna, the first radiator section has a second antenna feed point connected to a second antenna radio frequency source, a second radio frequency signal output by second antenna radio frequency source is received by using both the first radiator section and the second radiator section, and at least one of the first radiator section or the second radiator section being connected to the ground, wherein a first free end of the first radiator section and a second free end of the second radiator section are respectively the first end and the second end;
one of two first filters is connected between the first antenna radio frequency source and the first antenna feed point, the other one of the two first filters is connected between the ground and the antenna ground point, and the two first filters allow a signal of the first antenna to pass through, and prevent a signal of the second antenna from passing through; and
one of two second filters is connected between the second antenna radio frequency source and the second antenna feed point, the other one of the two second filters is connected between the ground and at least one of the first radiator section or the second radiator section, and the two second filters allow the signal of the second antenna to pass through, and prevent the signal of the first antenna from passing through.