US 12,456,802 B2
Dual-band antenna and antenna array
Zijing Du, Xi'an (CN); Zhenxing Wan, Xi'an (CN); Guoqing Xie, Dongguan (CN); and Weihong Xiao, Dongguan (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jan. 12, 2023, as Appl. No. 18/153,827.
Application 18/153,827 is a continuation of application No. PCT/CN2021/106067, filed on Jul. 13, 2021.
Claims priority of application No. 202010682426.5 (CN), filed on Jul. 15, 2020.
Prior Publication US 2023/0170630 A1, Jun. 1, 2023
Int. Cl. H01Q 1/52 (2006.01); H01Q 1/24 (2006.01); H01Q 5/42 (2015.01); H01Q 5/48 (2015.01); H01Q 19/10 (2006.01); H01Q 21/26 (2006.01); H01Q 21/28 (2006.01)
CPC H01Q 1/523 (2013.01) [H01Q 1/246 (2013.01); H01Q 5/42 (2015.01); H01Q 5/48 (2015.01); H01Q 19/108 (2013.01); H01Q 21/26 (2013.01); H01Q 21/28 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dual-band antenna, comprising a first radiating element and a second radiating element that are disposed on a reflection plate, wherein:
an operating frequency band of the first radiating element is a first frequency band, an operating frequency band of the second radiating element is a second frequency band, and a minimum frequency of the first frequency band is greater than a maximum frequency of the second frequency band; and
the first radiating element comprises a first feeding apparatus and a first radiator unit, the first feeding apparatus comprises a coupling structure coupled to the first radiator unit, the coupling structure comprises a plurality of horizontal arms and a plurality of vertical arms, the horizontal arms are symmetrical with respect to a central axis of the first radiator unit, each horizontal arm is coupled to one radiator arm, a spacing between a horizontal arm and a radiator arm that are coupled to each other is less than a preset value, the vertical arms are disposed close to the central axis of the first radiator unit, the vertical arms are configured to connect the horizontal arms and the reflection plate, the horizontal arms and the vertical arms from an inverted L-shaped conductive plate structure, and the first feeding apparatus is used for coupled feeding for the first radiator unit by using the coupling structure, wherein the coupling structure is configured to:
transmit a signal of the first frequency band; and
block a signal of the second frequency band;
wherein:
a gap is provided between the vertical arms, the first feeding apparatus further comprises crossed feeding sheets, the feeding sheets are disposed in the gap between the vertical arms, and the feeding sheets are electrically connected to a feeding port on the reflection plate; or
the first feeding apparatus further comprises a feeder disposed on the vertical arms, and the feeder is electrically connected to a feeding port on the reflection plate.