The dielectric properties of a fluorozirconate glass are investigated
in the frequency range from 0.5 to 13.5 GHz using a microwave vector n
etwork analyzer. A prominent dielectric resonance is observed around 7
.0 GHz. The resonance may be due to a fundamental interunit vibrationa
l mode of the basic structural ZrF(n) polyhedral units of the fluorozi
rconate glass.