大型有源相控阵校准的MCM法及其误差分析

MCM of Large Active Phased Array Calibration and Tolerance Analysis

摘要: 文献1，2对相控阵天线校准采用互耦测量的方法进行了讨论。本文对此方法进行了推广、并提出了一种用互耦法进行大型有源相控阵校准的新方法──MCM法3，4。在整个监测校准过程中，校准测量与各有源通道收／发监测信号幅相大小无关。本文进一步对MCM法的测量误差进行了研究，同时给出了MCM法和近场实测结果，并进行了比较。理论分析和实验结果表明，该方法在工程应用中具有较大的实用价值。

Abstract: Abstract: Phased array antenna calibration using mutual coupling measurements is discussed in 1, 2. A newway of large active phased array calibration with Mutual Coupling Method (MCM) is presented which the wholecalibration process is independent on the amplitude and phase of the transmittng/receiving signals in each activepath3,4. The statistics of the results on MCM are discussed, some experimental results measured by MCM andNear-Field are given and compared in this paper. Theoretical analysis and measurement results show that MCM hassignificant practical value in engineering applications.