The
permittivity and loss tangent of the composites increased and decreased from 10 to 34 and 0.07 to 0.02,
respectively, with increasing amount (i.e., from 10 vol% to 40 vol%) of BMAZ filler. Moreover, for shape
factors of 1.5e3, the permittivity values predicted by using Yamada's model exhibited close correspondence
to those determined experimentally