Prediction method of near-field coupling between phase arrays based on theory of multi-ports network

Interference coupling between phased array elements as subject investigated, we use multi-ports net modelling based on Z matrix to simulate coupling between phased array elements and compute amplitude and phase of every element´s receiving signal. The element and synthesized coupling level is educed by method of element by element and radial method, adapted to large-scale phase arrays´ coupling analysis in coplanar arrangement and solving complex iterative problem by full-wave simulating method. Compared with results by MOM, the error is less than 2dB, and this method´s accuracy and efficiency can suffice engineering´s requirement.