Research progress in piezoelectric materials used to design filters

摘要

In this paper, the research progress of piezoelectric crystals and piezoelectric ceramics used to design filters is introduced. The performance and characteristics of piezoelectric crystals, the modification achievements of lead-based and lead-free piezoelectric ceramics and the problems are analyzed. The prospect of the piezoelectric crystals and piezoelectric ceramic materials is presented, and suggestions for future research are made.