New mutual coupling compensation method and its application in DOA estimation

A new mutual coupling compensation method based on a new mutual impedance matrix,as well as its application to dipole arrays,are proposed.This new mutual impedance matrix is deduced by electromotive force(EMF)method,based on the current distribution obtained by the characteristic basis function method.It appears in a concise and explicit formulation that facilitates the numerical calculation.The compensation performance is demonstrated and evaluated through its application in direction of arrival(DOA)estimation.Numerical results show that the proposed method exhibits excellent compensation performance compared with conventional mutual impedance matrix approaches.