A. IOACHIM, M. I. TOACSAN, M. G. BANCIU, L.
NEDELCU, D. GHETU, A. C. DUTU, F. VASILIU, H. V. ALEXANDRU, C. BERBECARU, G.
STOICA, P. NITA
Ferroelectric Ba1-x SrxTiO3 Materials for Electrically Controlled Microwave
The paper describes the investigations of Ba1-x SrxTiO3
ceramic materials prepared by solid-state reaction techniques. The addition of
MgO and MnO2 improves sintering process and decreases the dielectric
loss. The materials exhibit a dielectric constant εr
~ 1000 and low loss tan δ ~ 10-3 at microwave