公开(公告)号：US20210242948A1

公开(公告)日：2021-08-05

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 ,  H04B17/21 ,  H04B17/14 ,  H01Q3/26

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.