کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5497551 1531902 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical studies on a (FGPM) system with Gaussian profile for a zero TCD SAW devices
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Theoretical studies on a (FGPM) system with Gaussian profile for a zero TCD SAW devices
چکیده انگلیسی
We investigate the propagation of surface wave in a functionally graded piezoelectric material layer ZnO/AlN/ZnO on α-Al2O3 substrate in this study. The influence of buffer layer thickness on the temperature coefficient of delay (TCD) is studied. The stiffness matrix method (SMM) and the ordinary differential equation (ODE), treat the electrical and mechanical gradients. We demonstrate that for the second mode, the largest coupling coefficient of (5.43%) associated with a phase velocity of (5602 m/s) and a TCD of (66.16 ppm/°C) can be found for the (ZnO/AlN/ZnO)/R-Al2O3 structure. The simulation results indicate that for the first mode, a temperature compensation of (0 ppm/°C) and high velocities of up (6000 m/s).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Results in Physics - Volume 7, 2017, Pages 327-332
نویسندگان
, , ,