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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：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：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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公开(公告)号：US4334167A
公开(公告)日：1982-06-08
申请号：US153238
申请日：1980-05-27
申请人： Shoichi Minagawa , Takeshi Okamoto
发明人： Shoichi Minagawa , Takeshi Okamoto
CPC分类号： H03F13/00
摘要： An elastic surface wave device having an input electrode, a pump electrode and an output electrode provided on a body of the device. The output electrode is juxtaposed with the input electrode on the body of the device on the same side with reference to the pump electrode and a multistrip coupler is provided between the pump electrode and the input and output electrodes so as to output, through the output electrode, a backward wave signal from the pump electrode.
摘要翻译： 一种弹性表面波装置，具有设置在该装置主体上的输入电极，泵电极和输出电极。 输出电极相对于泵电极在同一侧的器件本体上与输入电极并置，并且在泵电极和输入和输出电极之间设置多通耦合器，以便通过输出电极 来自泵电极的反向波信号。
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公开(公告)号：US4288765A
公开(公告)日：1981-09-08
申请号：US44513
申请日：1979-06-01
申请人： Nobuo Mikoshiba , Shoichi Minagawa
发明人： Nobuo Mikoshiba , Shoichi Minagawa
IPC分类号： H03H9/25 , H03H3/08 , H03H9/02 , H03H9/05 , H03H9/145 , H03H9/64 , H03H9/72 , H03F7/00 , H03H9/68
CPC分类号： H03H9/02574
摘要： A frequency selector apparatus which effects a frequency selection by providing at least one reflecting electrode at a position adjacent elastic surface wave transducer or transducers provided in an acoustic wave propagation track in a piezoelectric medium so as to reflect a frequency component selected by a parametric interaction with an a.c. electrical signal applied to said reflecting electrode.
摘要翻译： 一种频率选择装置，其通过在与压电介质中的声波传播轨道中设置的弹性表面波换能器或换能器相邻的位置处设置至少一个反射电极来进行频率选择，以便反映通过参数相互作用选择的频率分量 一个ac 电信号施加到所述反射电极。
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9.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：US4529995A
公开(公告)日：1985-07-16
申请号：US397283
申请日：1982-07-12
申请人： Takamasa Sakai , Shoichi Minagawa
发明人： Takamasa Sakai , Shoichi Minagawa
IPC分类号： H01L29/93
CPC分类号： H01L29/93
摘要： Variable capacitance device consisting of a semiconductor substrate having a first conductivity type semiconductor layer, at least one second conductivity type semiconductor region formed in a surface portion of said first conductivity type semiconductor layer, and a barrier for generating a depletion layer formed on the surface opposite to said surface portion of said first conductivity type semiconductor layer, in which a capacitance reading-out section is disposed on said at least one second conductivity type semiconductor region. A depletion layer control section is disposed on said surface opposite to said surface portion; and said depletion layer control section is reversely biased so that said depletion layer extends from said barrier to a junction portion between said first conductivity type semiconductor layer and said at least one second conductivity type semiconductor region, whereby a capacitance variation results at said capacitance reading-out section in response to variation of the reverse bias voltage.
摘要翻译： 由具有第一导电类型半导体层的半导体衬底，形成在所述第一导电类型半导体层的表面部分中的至少一个第二导电类型半导体区域和用于产生在相对的表面上形成的耗尽层的势垒组成的可变电容器件 到所述第一导电类型半导体层的所述表面部分，其中电容读出部分设置在所述至少一个第二导电类型半导体区域上。 耗尽层控制部分设置在与所述表面部分相对的所述表面上; 并且所述耗尽层控制部分被反向偏置，使得所述耗尽层从所述势垒延伸到所述第一导电类型半导体层和所述至少一个第二导电类型半导体区域之间的接合部分，由此在所述电容读取 - 响应于反向偏置电压的变化。
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