陶瓷材料

掺入杂质

T_s (˚C)

ε_r

Q × f (GHz)

τ_f (ppm/˚C)

Ref

(1-x)BiNbO₄-xZnTaO₆

CuO，V₂O₅

910

20

25,000

−13.58

[16]

ZnNb₂O₆

CuO，B₂O₅

1025

25~35

—

−44.41~−59.31

[17]

CaO-2CuO-Nb₂O₅

TiO₂

1300

59.54

30,000

−2

[18]