Phased Array Calibration Based on Near-field Measurement
Phased array calibration is crucial to ensure accurate array beam direction and radiation pattern.The calibration meth-od can be divided into far-field calibration and near-field calibration according to the measurement distance.With the development trend of large-scale array antennas,it is increasingly difficult for the anechoic chambers to meet the far-field requirements of array antennas.The applicability of far-field calibration methods gradually weakens,while the demand for near-field calibration methods gradually increases.This article combs traditional near-field calibration methods and discusses the latest near-field calibration meth-ods.The principles and features of different calibration methods are analyzed and compared,and finally an outlook for future devel-opment directions is proposed.
NETL
NSTL
万方数据
维普
