1) e acoustic wave filter
表面声波滤波器;声表面波滤波器
2) SAW filter
声表面波滤波器
1.
Improved iterative compensation method for diffraction in SAW filters;
声表面波滤波器衍射迭代补偿的改进算法
2.
Design of wide-band low-loss SAW filter using tapered transducer;
利用锥型换能器的宽带低损耗声表面波滤波器设计
3.
A fabricating method of wide band and low loss SAW filter with longitudinal coupling double mode is described in this paper.
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。
3) surface acoustic wave filter
声表面波滤波器
1.
Evolutionary design for surface acoustic wave filter based on genetic algorithm;
基于遗传算法的声表面波滤波器进化设计
2.
Compared with the surface acoustic wave filter with same period and same size of all fingers of interdigital transducers, the frequency response of that which based on evolut.
提出了一种全新的设计方法,它以声表面波滤波器中心频率处的插入损耗和旁瓣抑制作为寻优目标,通过选择、交叉和变异等遗传操作,自动生成声表面波滤波器的输入和输出叉指换能器所有指条长度,并给出中心频率处的声表面波滤波器频率响应。
3.
Therefore, it is need one stage amplifier before surface Acoustic Wave filter, which can compensate insertion loss.
而信号经过声表面波滤波器后有很大衰减,幅度无法满足后级电路的要求,所以有必要在声表面波滤波器的前面加上一级放大电路以补偿声表面波滤波器的插入损耗。
4) SAWF
声表面波滤波器
1.
A Low Loss and High Stopband Rejection SAWF;
低损耗高阻带抑制声表面波滤波器
2.
The Influence of SAWF Centre Frequency with Cutting Error in Piezoelectric Substrates;
压电基片切割误差对声表面波滤波器中心频率的影响研究
3.
The development of wireless communication system toward high frequency and high reliability needs that surface acoustic wave filter(SAWF)must have the characteristics of high acoustic speed,high electrome- chanical coupling coefficient,low inserting loss and high temperature stability.
无线通讯系统向高频率、高可靠性的发展要求声表面波滤波器(SAWF)同时具备高声速、高机电耦合系数、低插入损耗、高温度稳定性,而多层结构SAWF能够满足这些要求,因此多层结构SAWF近年来引起了人们极大的关注,并取得了较大的进展。
5) SAW ladder filters
声表面波(SAW)梯形滤波器
6) programmable SAW filter
可编程声表面波滤波器
1.
A 1μm CMOS eight-bit integrated circuit was designed and fabricated,used for sampling,weighting,controlling and summing of both SAW delay lines and SAW IDTs in multi-chip module (MCM) programmable SAW filter.
本文介绍了一种采用 1μmCMOS工艺实现的可编程声表面波滤波器的八位取样、加权、控制、叠加集成电路 ,并对电路的性能进行了模拟和测试 ,同时与延迟线型、多组IDT型的声表面波滤波器以多芯片模式进行在线功能测试 。
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