Synthesis of broadband microstrip uncouplers for multiport complex loads

Methods of synthesis, mathematical models and parameters of broadband microstrip uncouplers for multiport multiport complex loads are considered in this paper. These circuits are used for a solution of an optimal broadband matching problem for an antenna array. Structure parameters and a synthesis of these networks are based on eigenvalues and eigenvectors of multiport scattering complex matrices. A microstrip realization of the uncoupler and its computer-aided simulation are described.