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公开(公告)号：US4357553A
公开(公告)日：1982-11-02
申请号：US177966
申请日：1980-08-14
CPC分类号： H03F13/00
摘要： A surface-acoustic-wave device has a laminate formed of a semiconductor and a piezoelectric layer and a depletion layer control means locally provided at an interface portion of the semiconductor and said piezoelectric layer, wherein a parametric interaction is caused at a region other than an area where the depletion layer control means is provided and a depletion layer capacitance is controlled by applying a DC bias voltage and a pumping voltage to the depletion layer control means.
摘要翻译： 表面声波装置具有由半导体和压电层形成的叠层和局部地设置在半导体和所述压电层的界面部分的耗尽层控制装置，其中在除了 通过向耗尽层控制装置施加DC偏置电压和泵浦电压来控制耗尽层控制装置的耗尽层电容。
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公开(公告)号：US4365216A
公开(公告)日：1982-12-21
申请号：US223059
申请日：1981-01-07
CPC分类号： H03F13/00
摘要： A surface-acoustic-wave device wherein a plurality of metal strips (S) are provided on a propagation path of surface acoustic wave which is formed in a laminate comprised of a piezoelectric layer (23) and a semiconductor (1), the metal strips are extended onto the semiconductor outside the propagation path of surface acoustic wave, and depletion layer capacitance non-linearity created on the semiconductor surface at a region where the metal strips are extended is used as a main factor of a parametric interaction.
摘要翻译： 一种表面声波装置，其中在由压电层（23）和半导体（1）构成的叠层中形成的表面声波的传播路径上设置有多个金属条（S），所述金属条 被扩展到表面声波的传播路径之外的半导体，并且在金属带延伸的区域处在半导体表面上产生的耗尽层电容非线性被用作参数相互作用的主要因素。
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公开(公告)号：US4473767A
公开(公告)日：1984-09-25
申请号：US438437
申请日：1982-11-02
CPC分类号： G06G7/195
摘要： A surface acoustic wave convolver comprises a piezoelectric substrate on which a plurality of conductive strip electrodes, an input signal transducer and a reference signal transducer are formed, and a semiconductive substrate on which depletion layer control electrodes and capacitance read-out electrodes are formed. The conductive strip electrodes are connected to the depletion layer control electrodes so that an output signal is taken up from the capacitance read-out electrodes.
摘要翻译： 声表面波卷积器包括其上形成有多个导电带状电极，输入信号传感器和参考信号换能器的压电基板，以及形成有耗尽层控制电极和电容读出电极的半导体基板。 导电条电极连接到耗尽层控制电极，从而从电容读出电极吸收输出信号。
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4.发明授权
公开(公告)号：US4841470A
公开(公告)日：1989-06-20
申请号：US875855
申请日：1986-06-18
IPC分类号： G06G7/195 , H03H9/02 , H04L27/18 , H04L27/227 , H04L27/233
CPC分类号： H03H9/02771 , G06G7/195 , H03H9/14564 , H04L27/2278 , H04L27/2331 , H03H9/02913 , H03H9/14547
摘要： A differential phase shift keying convolver having a plurality of tracks includes at least one track where an opposite phase convolution output is produced. Each track includes two output gates spaced at the center for differential phase shift keying demodulation. Among these output gates, some gates selected in accordance with the phase relationship between convolution outputs are connected to provide sum and/or difference outputs of the convolution signals. The opposite phase convolution outputs can be produced by arranging at least one of the input transducers in a step-like configuration, by using multistrip couplers, or by providing a metal film in a selected position of the traveling path of surface acoustic waves for application of a control voltage.
摘要翻译： 具有多个轨道的差分相移键控卷积器包括产生相反相位卷积输出的至少一个轨道。 每个轨道包括在中心间隔开的差分相移键控解调的两个输出门。 在这些输出门之中，根据卷积输出之间的相位关系选择的一些门被连接以提供卷积信号的和和/或差分输出。 相反的卷积输出可以通过使用多段耦合器布置至少一个输入换能器，通过使用多段耦合器，或者通过在表面声波的行进路径的选定位置提供金属膜来产生，以应用 一个控制电压。
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公开(公告)号：US4254388A
公开(公告)日：1981-03-03
申请号：US74626
申请日：1979-09-12
IPC分类号： H03H9/25 , G10K11/36 , H03F7/04 , H03F13/00 , H03H3/08 , H03H9/145 , H01L41/04 , H01L27/20 , H03H9/64
CPC分类号： H03F13/00 , G10K11/36 , H03F7/04 , H03H9/14508
摘要： A frequency selector apparatus wherein unidirectional input and output surface-acoustic-wave transducers are provided in an acoustic wave propagation path formed on a piezoelectric device and reflecting electrodes, to which a.c. signals are applied respectively, are disposed in the acoustic wave propagation path on opposite sides of the transducers and adjacent thereto.
摘要翻译： 一种频率选择装置，其中单向输入和输出表面声波换能器设置在形成在压电装置和反射电极上的声波传播路径中， 分别施加信号，设置在换能器的相对侧的声波传播路径中并与其相邻。
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公开(公告)号：US4602183A
公开(公告)日：1986-07-22
申请号：US509755
申请日：1983-06-30
CPC分类号： H03H9/14505 , H03H9/02574 , H03H9/14508
摘要： A surface acoustic wave device comprises an elastic substrate; a lower electrode provided on the elastic substrate; a piezo-electric film covering the lower electrode; and plural upper electrodes which each include plural electrode fingers and are aligned with and spaced from each other on the piezoelectric film in confrontation with the lower electrode.
摘要翻译： 表面声波装置包括弹性基板; 设置在弹性基板上的下电极; 覆盖下电极的压电膜; 以及多个上电极，每个上电极包括多个电极指，并且在与下电极对置的压电膜上彼此对齐并彼此间隔开。
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公开(公告)号：US4491811A
公开(公告)日：1985-01-01
申请号：US506569
申请日：1983-06-22
CPC分类号： H03H9/14508 , H03H9/02228
摘要： A surface acoustic wave device in which first electrodes are provided on a piezoelectric film deposited on an elastic substrate, second electrodes between the piezoelectric film and the elastic substrate, and third electrode within the piezoelectric film, respectively, so that an electric signal is applied to the first and second electrodes.
摘要翻译： 一种声表面波装置，其中第一电极设置在沉积在弹性基板上的压电膜上，压电膜和弹性基板之间的第二电极以及压电膜内的第三电极，使得电信号被施加到 第一和第二电极。
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公开(公告)号：US4480209A
公开(公告)日：1984-10-30
申请号：US433483
申请日：1982-10-08
申请人： Takeshi Okamoto , Ryuichi Asai , Shoichi Minagawa
发明人： Takeshi Okamoto , Ryuichi Asai , Shoichi Minagawa
CPC分类号： H03H3/08 , H03H9/02574
摘要： A surface acoustic wave device includes a silicon substrate having a main surface with a given crystalline orientation, a zinc oxide layer deposited on the main surface of the silicon substrate and a dielectric layer as well as electrodes both formed in contact with said zinc oxide layer, so that a surface acoustic wave will be propagated along a given crystalline axis direction of the silicon substrate.
摘要翻译： 表面声波装置包括具有给定结晶取向的主表面的硅衬底，沉积在硅衬底的主表面上的氧化锌层和介电层以及与所述氧化锌层形成接触的电极， 使得表面声波将沿着硅衬底的给定晶轴方向传播。
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公开(公告)号：US4456847A
公开(公告)日：1984-06-26
申请号：US499930
申请日：1983-06-01
CPC分类号： H03H9/0222 , H03H9/14508 , H03H9/64
摘要： A surface acoustic wave device comprises a lower electrode provided on an elastic substrate, a piezoelectric film covering the lower electrode and an upper electrode provided on the piezoelectric film. The device is characterized in that the upper electrode comprises first and second double electrodes both opposed to the lower electrode.
摘要翻译： 表面声波装置包括设置在弹性基板上的下电极，覆盖下电极的压电膜和设置在压电膜上的上电极。 该装置的特征在于，上电极包括与下电极相对的第一和第二双电极。
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公开(公告)号：US4348650A
公开(公告)日：1982-09-07
申请号：US220678
申请日：1980-12-29
申请人： Shoichi Minagawa , Takeshi Okamoto
发明人： Shoichi Minagawa , Takeshi Okamoto
CPC分类号： H03F13/00 , H03H9/02976
摘要： A surface-acoustic-wave parametric device characterized in that a width of a parametric interaction region in a direction perpendicular to the propagation direction of surface acoustic wave is varied so as to correspond to a desired frequency characteristic.
摘要翻译： 一种表面声波参数装置，其特征在于，在与声表面波的传播方向垂直的方向上的参数相互作用区域的宽度变化，以便对应于期望的频率特性。
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