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st-石英基片
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  “st-石英基片”译为未确定词的双语例句
     Quasi-longitudinal leaky surface acoustic wave on Y-rotated cut ST-quartz substrates
     Y旋转ST-石英基片上的准纵漏表面声波
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  相似匹配句对
     St.
     St.
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     No impact of St.
     St.
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     Quasi-longitudinal leaky surface acoustic wave on Y-rotated cut ST-quartz substrates
     Y旋转ST-石英基片上的准纵漏表面声波
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     Stress Analyzing of ST Quartz Membrane
     ST切型石英膜片的应力分析
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     The simulation of QHIDT is described in the paper, and the experimental results of a SAW filter working at 1128 MHz, fabricated on a ST Quartz substrate, are also shown in this paper.
     本文给出了制作在ST石英基片上,工作频率1128MHz的声表面波滤波器的实验结果。
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in this paper,the frequency response of SAW filter with double-mode resonator iscalculated from lumped equivalent circuit model.The required specification of the filter is obtainedthrough changing each parameter of the resonator. The SAW filter for special pager used on railway is designed successfully on ST-quartz substrate. The characteristics of the filter include centerfrequency of 228 MHz,3 dB bandwidth of 150 MHz,insertion loss of less than 3 dB and the outband rejection of- 50 dB. The experimental results...

in this paper,the frequency response of SAW filter with double-mode resonator iscalculated from lumped equivalent circuit model.The required specification of the filter is obtainedthrough changing each parameter of the resonator. The SAW filter for special pager used on railway is designed successfully on ST-quartz substrate. The characteristics of the filter include centerfrequency of 228 MHz,3 dB bandwidth of 150 MHz,insertion loss of less than 3 dB and the outband rejection of- 50 dB. The experimental results are in agreement with theoretical values.

利用集总参数等效电路模型计算了声表面波双模耦合谐振滤波器的频响.通过改变谐振器各个参量使滤波器指标满足要求.在ST石英基片上成功研制出中心频率228MHz,△f-3dB=150kHz,插损为3dB,阻带抑制小于-50dB的铁路专用寻呼机用滤波器。理论计算与实验结果一致。

In this paper, GHz SAW filters are implemented using the quasi harmonic interdigital transducers (QHIDTs). The advantages of QHIDT are that the width of electrodes in QHIDT is wider than that of normal IDT with single fingers, and therefore the practical GHz SAW filters have been successfully implemented using conventional manufacturing processes. Furthermore, in QHIDT, multi-reflection between fingers can be eliminated and the fundamental frequency signal can be suppressed as well. The simulation of QHIDT is...

In this paper, GHz SAW filters are implemented using the quasi harmonic interdigital transducers (QHIDTs). The advantages of QHIDT are that the width of electrodes in QHIDT is wider than that of normal IDT with single fingers, and therefore the practical GHz SAW filters have been successfully implemented using conventional manufacturing processes. Furthermore, in QHIDT, multi-reflection between fingers can be eliminated and the fundamental frequency signal can be suppressed as well. The simulation of QHIDT is described in the paper, and the experimental results of a SAW filter working at 1128 MHz, fabricated on a ST Quartz substrate, are also shown in this paper.

本文利用准谐频设计方法,在常规光刻工艺水平上,成功地实现了GHz级声表面波(SAW)器件。准谐频叉指换能器(QHIDT)的优点为:其指条宽与指间隙可以比一般的单指换能器宽,克服了单指换能器内指间的多次反射,并且又较好地解决了普通谐频叉指换能器基频抑制不好的缺点。本文给出了制作在ST石英基片上,工作频率1128MHz的声表面波滤波器的实验结果。

This paper studies the propagation properties of Quasi longitudinal leaky surface acoustic wave (QLLSAW) on Y rotated cut ST quartz substrates. The phase velocity of QLLSAW on the ST quartz substrate is about twice that of normal SAW, and in some directions even up to 7000m/s. Both theoretical and experimental results show that QLLSAW propagating along some directions are with small power flow deviation and small temperature coefficient, such...

This paper studies the propagation properties of Quasi longitudinal leaky surface acoustic wave (QLLSAW) on Y rotated cut ST quartz substrates. The phase velocity of QLLSAW on the ST quartz substrate is about twice that of normal SAW, and in some directions even up to 7000m/s. Both theoretical and experimental results show that QLLSAW propagating along some directions are with small power flow deviation and small temperature coefficient, such as along the direction of Euler angle(0°,155.25°,42°),the phase velocity is 6153m/s, temperature coefficient is 11ppm/℃ and the energy flow of QLLSAW is along the direction of wave vector. When liquid was put on the surface of the substrates, QLLSAW had little absorption by liquid, which proved that the direction of particle vibration is parallel with the surface, and demonstrates that the wave is of the properties of longitudinal wave.

文章主要研究了Y旋转ST 石英基片上准纵漏表面声波 (快速声表面波 )的传播特性。它的相速度是常规瑞利波的两倍 ,在某些传播方向可高达 70 0 0m/s ;在理论与实验上寻找了束偏向和延时温度系数均较小的切割传播方向 ,例如 ,沿欧拉角 (0° ,15 5 .2 5°,42°)方向的准纵漏表面声波的相速度为 6 15 3m/s,延时温度系数为 11ppm/℃ ,其声波能流方向基本上与波的传播矢量方向相一致。实验证明放置于基片表面的液体对准纵漏表面声波的吸收不大 ,说明声波的质点振动与传播方向一致 (沿表面方向 ) ,具有纵波的性质。

 
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