DISPERSIVE DELAY LINES USING ULTRASONIC SURFACE WAVES

被引:34
作者
TANCRELL, RH
SCHULZ, MB
BARRETT, HH
DAVIS, L
HOLLAND, MG
机构
[1] Raytheon Research Div., Waltham
关键词
D O I
10.1109/PROC.1969.7202
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
Surface ultrasonic wave delay lines with dispersive time-frequency characteristics have been made using interdigital electrode arrays with variable element spacings on LiNbO3. The devices operate at 60 MHz with low insertion loss and a 3-dB bandwidth over 25 percent. A model has been devised which accurately predicts the phase and amplitude characteristics of the devices. Weighting” the array to improve the phase characteristic is described. Copyright © 1969 by The Inshtute of Electrical and Electronics Engineers Inc.
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页码:1211 / &
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