The effect of Pb substitution on the properties of Ba3(1-x)Pb3xCo2Fe24O41 h
exaferrite sintered at low temperatures was investigated. The formation of
Z-type phase and the densification of the sintered ferrites depended on sin
tering temperature and Pb content. The modified ferrite sintered at 1120 de
grees C/4 h with x = 0.20 stoichiometry, consisted mainly of Z-type hexagon
al phase and exhibited good hyper-frequency properties as follows: 5.0 init
ial permeability, about 1.5 GHz cut-off frequency, > 5 quality factor. Inte
resting dielectric resonance was found in the hyper-frequency region. (C) 1
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