Patent ID: 11876275
Assignee: BEIJING BOE SENSOR TECHNOLOGY CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 13:
14. A liquid crystal phase shifter, comprising:
a microwave transmission structure and a phase adjustment structure opposite to each other, and a liquid crystal layer between the microwave transmission structure and the phase adjustment structure; wherein
the phase adjustment structure comprises a plurality of phase adjustment units;
the plurality of phase adjustment units are configured to change a dielectric constant of the liquid crystal layer according to a voltage applied to the phase adjustment units and a voltage applied to the microwave transmission structure, so as to adjust a phase of a microwave signal; and
phase shift amounts adjusted by at least two of the plurality of phase adjustment units are different from each other, wherein the microwave transmission structure comprises:
a first substrate; and
a coplanar waveguide layer at a side of the first substrate proximal to the liquid crystal layer;
wherein the coplanar waveguide layer comprises a central strap at the side of the first substrate proximal to the liquid crystal layer;
the plurality of phase adjustment units are connected to each other in series; and
the central strap has a straight-line shape that extends in a direction in which the plurality of phase adjustment units are connected to each other in series, and has a one-piece structure in the direction.