  We present a new approach in modelling the polarized Galactic synchrotron
emission in the microwave range (20-100 GHz), where this radiation is expected
to play the leading role in contaminating the Cosmic Microwave Background (CMB)
data. Our method is based on real surveys and aims at providing the real
spatial distributions of both polarized intensity and polarization angles. Its
main features are the modelling of a polarization horizon to determine the
polarized intensity and the use of starlight optical data to model the
polarization angle pattern. Our results are consistent with several existing
data, and our template is virtually free from Faraday rotation effects as
required at frequencies in the cosmological window.
