公开(公告)号：US11611400B2

公开(公告)日：2023-03-21

申请号：US17160631

申请日：2021-01-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sunwoo Kong ,  Kwang Seon Kim ,  Jeehoon Park ,  Hui Dong Lee ,  Seunghyun Jang ,  Seok Bong Hyun

IPC: H04B17/12 ,  H01Q3/26 ,  H04B17/14 ,  H04B17/21

Abstract: An array antenna system, and a calibration method and apparatus thereof are provided. The calibration method includes measuring a signal loop including mutual coupling between antennas included in an array antenna, calculating a ratio of a reception (RX) signal received by each antenna to an RX signal received by a reference antenna of the array antenna based on a result of the measuring, and performing calibration of the array antenna based on the ratio.