US 12,334,616 B2
Phase shifter and electronic device
Jingwen Guo, Beijing (CN); Qianhong Wu, Beijing (CN); Chunxin Li, Beijing (CN); and Feng Qu, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/021,592
Filed by Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 28, 2022, PCT No. PCT/CN2022/083342
§ 371(c)(1), (2) Date Feb. 16, 2023,
PCT Pub. No. WO2023/184078, PCT Pub. Date Oct. 5, 2023.
Prior Publication US 2024/0266705 A1, Aug. 8, 2024
Int. Cl. H01P 1/18 (2006.01)
CPC H01P 1/182 (2013.01) 20 Claims
OG exemplary drawing
 
1. A phase shifter, comprising:
a first dielectric substrate; and
a first feed structure, a second feed structure and a phase shifting structure, which are all arranged on the first dielectric substrate; wherein
the phase shifting structure comprises:
a first signal electrode and at least one first reference electrode on at least one side of an extending direction of the first signal electrode;
a first insulating layer on a side of the first dielectric substrate, where the first signal electrode and the at least one first reference electrode are located; wherein the first insulating layer covers the at least one first reference electrode and the first signal electrode; and
at least one phase control unit on a side of the first insulating layer away from the first dielectric substrate; wherein each of the at least one phase control unit comprises at least one film bridge; there is a gap between a bridge deck of each of the at least one film bridge and the first insulating layer; and an orthographic projection of a bridge deck of each of the at least one film bridge on the first dielectric substrate overlaps with orthographic projections of the first signal electrode and the at least one first reference electrode on the first dielectric substrate;
the first feed structure comprises a second signal electrode; the second feed structure comprises a third signal electrode; and the second signal electrode and the third signal electrode are connected to a first end and a second end of the first signal electrode, respectively; and
the phase shifter further comprises at least one first bias signal line connected to the second signal electrode or the third signal electrode.