US 11,658,401 B2
Antenna apparatus and terminal
Shaogang Deng, Dongguan (CN); Qing Liu, Shenzhen (CN); and Wei Chen, Dongguan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/56,253
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed May 13, 2019, PCT No. PCT/CN2019/086635
§ 371(c)(1), (2) Date Nov. 17, 2020,
PCT Pub. No. WO2019/218966, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 201810481642.6 (CN), filed on May 18, 2018.
Prior Publication US 2021/0218133 A1, Jul. 15, 2021
Int. Cl. H01Q 1/36 (2006.01); H01Q 5/307 (2015.01); H01Q 1/32 (2006.01); H01Q 1/48 (2006.01); H01Q 9/32 (2006.01); H01Q 19/02 (2006.01); H01Q 5/392 (2015.01)
CPC H01Q 1/36 (2013.01) [H01Q 1/3275 (2013.01); H01Q 1/48 (2013.01); H01Q 5/307 (2015.01); H01Q 5/392 (2015.01); H01Q 9/32 (2013.01); H01Q 19/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna apparatus comprising:
a ground plate;
a radiator disposed on the ground plate;
a signal source coupled to the radiator and configured to feed a first electromagnetic wave signal of a first frequency band into the radiator;
a first slot disposed on the ground plate; and
a second slot disposed on the ground plate,
wherein both the first slot and the second slot are closed slots and surround the radiator,
wherein the first slot and the second slot are configured to restrain a first current distribution on the ground plate,
wherein the first slot and the second slot are symmetrically disposed by a joint centered between the radiator and the ground plate, wherein a radial distance from the radiator to the first slot ranges from 0.2xλ1 to 0.3xλ1, wherein a first length of the first slot in a radial direction is 0.05xλ1 and wherein λ1 is a first wavelength of the first electromagnetic wave signal.