In the present work, effects of Ti‐substitution for Hf upon microwave dielectric characteristics for CaHfO
3 ceramics were investigated. CaHf
1−xTi
xO
3 solid solution in space group
Pnma was determined in the present ceramics with
x = 0–0.075, and only minor amount of secondary phases of CaHfO
3 (
R, 1.3 wt%) and Ca
2Hf
7O
16 (
R, 0.8 wt%) was detected. The significantly improved...