摘要
Propagation properties of the quasi-longitudinal leaky surface acoustic wave (QLLSAW) along different directions on Y-rotated cut quartz substrates, such as on the 34°, 36°, 42° Y-rotated cut, are investigated. The advantages of the QLLSAW along some directions include low propagation attenuation (less than 10^(-4)dB/λ), small power flow deviation and high phase velocity which can be up to 7000 m/s. A novel propagation direction of the quasi longitudinal leaky surface acoustic wave with the theoretical temperature coefficient of delay of 0.508 ppm/°C is proposed.
作者
童筱钧
王为标
周冉
章德
秦厚荣
TONG Xiao-jun;WANG Wei-biao;ZHOU Ran;ZHANG De;QIN Hou-Rong(Institute of Acoustics,State Key Laboratory of Modern Acoustics;Department of Mathematics,Nanjing University,Nanjing 210093)