US 12,444,817 B2
Feeding structure, microwave radio frequency device and antenna
Haocheng Jia, Beijing (CN); Tienlun Ting, Beijing (CN); Ying Wang, Beijing (CN); Jie Wu, Beijing (CN); Liang Li, Beijing (CN); Cuiwei Tang, Beijing (CN); and Qiangqiang Li, Beijing (CN)
Assigned to Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Feb. 15, 2024, as Appl. No. 18/443,214.
Application 18/443,214 is a continuation of application No. 17/280,873, granted, now 11,949,142, previously published as PCT/CN2020/108821, filed on Aug. 13, 2020.
Claims priority of application No. 201910750841.7 (CN), filed on Aug. 14, 2019.
Prior Publication US 2024/0186668 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01P 1/18 (2006.01); H01P 1/20 (2006.01); H01P 5/12 (2006.01)
CPC H01P 1/18 (2013.01) [H01P 1/20 (2013.01); H01P 5/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A radio frequency device, comprising a feeding structure, which comprises a first substrate and a second substrate opposite to each other, and a dielectric layer between the first substrate and the second substrate, wherein
the first substrate comprises a first base plate, and a coupling branch and a delay branch on a side of the first base plate proximal to the dielectric layer, the coupling branch and the delay branch are configured to be connected to two output terminals of a power divider, respectively;
the second substrate comprises a second base plate and a receiving electrode on a side of the second base plate proximal to the dielectric layer, the receiving electrode and the coupling branch form a coupling structure, and an orthographic projection of the receiving electrode on the first base plate and an orthographic projection of the coupling branch on the first base plate at least partially overlap each other;
a length of an orthographic projection of both the coupling branch and the receiving electrode on the first base plate is different from a length of the delay branch, such that a phase of a microwave signal transmitted on the coupling structure is different from a phase of a microwave signal transmitted on the delay branch; and
the radio frequency device further comprises a phase shifting structure comprising a first transmission line and a second transmission line that are opposite to each other, the first transmission line is directly and electrically connected to one of the coupling branch and the delay branch, and the second transmission line is directly and electrically connected to the other of the coupling branch and the delay branch.