低频窄带陶瓷滤波器  

Low Frequency Narrow Bandwidth Ceramic Filter

作　　者：刘良芳[1] 林廷芬[1] 蹇胜勇[1] 

机构地区：[1]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2005年第3期254-256,共3页Piezoelectrics & Acoustooptics

摘　　要：利用低机电耦合系数的压电陶瓷,制作一种低频窄带陶瓷滤波器。这种梯形陶瓷滤波器中心频率为140kHz,具有低插损、高阻带、高选择的特点。为了改进其可靠性,还为这种滤波器设计了一种新颖的组装结构。A low frequency ceramic with narrow bandwidth is fabricated using low k_p piezoelectric ceramic.These ladder type of ceramic filters with center frequency of 140 kHz ,have the characteristics of low insertion loss, high attenuation in the outband and high selectivity.In order to improved the reliability, a novel assembly structure is designed for the filtters.

关 键 词：低频 窄带 压电陶瓷滤波器 可靠性 

分 类 号：TN713[电子电信—电路与系统]