摘要
阐述了一种利用纵向耦合双模制作宽带低损耗声表面波滤波器的方法，给出了理论计算方法和计算机模拟结果，最后给出了制作中心频率为４５３ＭＨｚ的声表面波滤波器实验结果，插入损耗为１．９ｄＢ，１ｄＢ带宽为６．６６ＭＨｚ，远端带外抑制大于４５ｄＢ。
A fabricating method of wide band and low loss SAW filter with longitudinal coupling double mode is described in this paper.The results of theoretical calculation and computer simulation are given.A center frequency of 453 MHz SAW filter was fabricated,its insertion loss is 1.9 dB,1 dB bandwidth is 6.66 MHz,far end out of band suppression>45 dB.
出处
《压电与声光》
CSCD
北大核心
1998年第2期77-79,共3页
Piezoelectrics & Acoustooptics
