Patent ID: 11876274
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. A phase shifter, comprising: a substrate, a signal line on the substrate, pairs of ground lines on the substrate, and a capacitance adjusting component, wherein
two ground lines in a same pair of ground lines are on opposite sides of the signal line and spaced apart from the signal line, respectively, the capacitance adjusting component comprises a film bridge, the film bridge includes opposite ends that are on the two ground lines, respectively, the signal line is in a space enclosed by the film bridge and the substrate, the capacitance adjusting component is configured to adjust a capacitance between the film bridge and the signal line to a target capacitance when the capacitance adjusting component receives a bias voltage, and the target capacitance has a linear correlation with a magnitude of the bias voltage; and
the phase shifter further comprises a first switch unit on the substrate, and the first switch unit is configured to provide the bias voltage to the film bridge upon receiving a first control signal.