摘要
介绍中心频率2MHz,3dB带宽180～200Hz,通常波动小于0.5dB,阻带衰减大于70dB,矩形系数B_(60)/B_3<2,插入损耗小于3dB,输入、输出阻抗均为75Ω,体积为长81mm×宽31mm×高29mm的晶体滤波器的研制.该晶体滤波器的技术指标达到日本MWS-672型抖晃校准仪上用的同种晶体滤波器的技术指标.
The 2MHz high performance narrow band crystal filter has been developed. The filter features:cenfer frequency 2MHz,3dB band width 180-200Hz,ripple in pass band less than 0.5dB,stop band rejection greater than 70dB,shape factor (B_(60)/B_3)less than 2,insertion loss less than 3dB,terminating impedance 75,and total volume 81mm× 31mm×29mm.The specifications of this Filter have catched up with that of type MWS-672 wow calibrator imported from Japan in 1987.
出处
《宇航计测技术》
CSCD
北大核心
1991年第3期60-65,共6页
Journal of Astronautic Metrology and Measurement
关键词
晶体滤波器
窄带滤波器
网络综合
Crystal filter
Narrow band filter
Network synthesis
Design
