Patent ID: 11881632
Assignee: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC H

Claim 0:
1. An antenna array applied to an optical phased array, comprising:
N phase compensation groups and N antenna groups, wherein an ith phase compensation group is connected to an ith antenna group, where 1<i<N,
each phase compensation group comprises M phase compensation units, and each antenna group comprises M antenna units, a jth phase compensation unit is connected to a jth antenna unit, where 1<j<M, N and M are positive integers, and
wherein an input end of a phase compensation unit in one of the N phase compensation groups is configured to receive an optical signal,
wherein an output end of the phase compensation unit is connected to an antenna unit in one of the N antenna groups, is configured to transmit the received optical signal to the antenna unit, and performs phase compensation on the optical signal based on a phase shift caused by the antenna unit,
wherein the antenna unit is configured to transmit the optical signal, and comprises a waveguide-based mode converter changing gradually from a first width to a second width, the first width is larger than the second width, the antenna unit is configured to gradually expand a light spot in the waveguide for emission from a tip end; and
wherein the phase compensation unit comprises a first mode converter whose width gradually changes from the first width to a third width, and a second mode converter whose width gradually changes from the third width to the first width, the first width is larger than the third width, an output end of the first mode converter is connected to an input end of the second mode converter, and an output end of the second mode converter is connected to the antenna unit.