  Thin, penetrable electromagnetic inclusions buried within a half space are
retrieved from Multi-Static Response (MSR) matrix data collected above this
half space at several frequencies. A non-iterative algorithm is proposed to
that aim. It relies on the modeling of the MSR matrix according to a rigorous
asymptotic expansion of the scattering amplitude. The supporting curves of
single as well as multiple thin inclusions are retrieved in fairly good
fashion. This is illustrated by a set of numerical inversions that are carried
out from synthetic data, both noiseless and noisy ones.
