Experimental study of microwave properties of composites filled with Permalloy powderStanislav Y. Bobrovskii, Victor A. Garanov, Andrei S. Naboko, Alexei V. Osipov and Konstantin N. RozanovEPJ Web Conf., 185 (2018) 02002DOI: https://doi.org/10.1051/epjconf/201818502002