Patent ID: 11876302
Assignee: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A phase compensation method for measuring an array antenna, wherein the array antenna comprises a first array unit and a second array unit, and the phase compensation method comprises following operations performed by a phase compensation apparatus:
an operation S1 of controlling to measure the first array unit and the second array unit, which are placed on a rotary table, so as to obtain measured far-field directivity patterns of the first array unit and the second array unit, and establishing a coordinate system based on the far-field directivity patterns, so as to determine a spatial geometrical relationship between the first array unit and the second array unit;
an operation S2 of determining a wave path difference between the first array unit and the second array unit based on the spatial geometrical relationship between the first array unit and the second array unit; and
an operation S3 of performing phase compensation on the second array unit based on the wave path difference, so as to compensate a beam directivity deviation introduced to the measured far-field directivity patterns when at least one of the first array unit and the second array unit deflects from a rotation center of the rotary table.