Fabrication and Properties of Middle Frequency Filters by Using [Bi0.5 (Na1-x-yKxLiy)0.5]TiO3 Lead-free Piezoelectric Ceramics

被引：0

作者：

Li Ling-Zhi ^{[1
]}

Xiao Ding-Quan ^{[1
]}

Zhu Jian-Guo ^{[1
]}

Lin Dun-Min ^{[1
]}

Yu Ping ^{[1
]}

Wu Jiagang ^{[1
]}

机构：

[1] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China

来源：

2006 15TH IEEE INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS | 2007年

关键词：

lead-free piezoelectric ceramics; Bi-0.5(Na1-x-yKxLiy)(0.5)] TiO3; middle frequency filter; skeletal vibration mode; full electrode radial vibration mode;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

[Bi-0.5(Na1-x-yKxLiy)(0.5)]TiO3 (BNKLT) lead-free piezoelectric ceramics invented in authors' group were used for making of two kinds of middle frequency ceramic filters. The BNKLT ceramics was fabricated into the single disc for middle frequency filter with the center frequency being about 530 kHz by using the skeletal vibration mode. The loss insertion is about 3 dB, and the bandwidth is about 8.8 kHz. It was obtained that the filter has sharp upper and lower cut off frequencies. The BNKLT ceramics was also fabricated into the multi-section ladder for pass-band filter with the center frequency about 460 kHz by using the full electrode radial vibration mode of the resonance samples. The band -pass filter also has sharp upper and lower cut off frequencies with the curve smooth, and the loss insertion less than 6 dB and the out-band attenuation more than 30 dB.

引用

页码：146 / 149

页数：4