Convergence of electromagnetic model of E-cross for six-port reflectometer

The problem of creating meter of complex reflection coefficient based on the electromagnetic approach using E-plane cross-shaped splitter at the measurement transducer is studied. System of the integral equation describing scattering waves by the E-cross is solved. Intrinsic convergence of numeric algorithm is investigated in conventional and modified forms. Procedure of improving of numeric convergence is proposed. Influence of accuracy of electromagnetic model on errors of magnitude of reflection of vibrating load is demonstrated.