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

Claim 7:
8. A phase compensation apparatus for measuring an array antenna, wherein the array antenna comprises a first array unit and a second array unit, and the phase compensation apparatus comprises a memory storing instructions and a processor in communication in communication with the memory, wherein the processor is configured to execute the instructions to:
control 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 establish a coordinate system, so as to determine a spatial geometrical relationship between the first array unit and the second array unit;
determine 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
perform 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.