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公开(公告)号：US4056793A
公开(公告)日：1977-11-01
申请号：US685551
申请日：1976-05-12
CPC分类号： G10K11/24 , H03H9/25 , H03H9/42 , G01N2291/02491 , G01N2291/0427
摘要： An improved acoustic waveguide structure which comprises a ridge waveguide disposed in a horizontal direction extending outwardly from a substrate. The horizontal orientation of the waveguide which is in the form of a ledge results in particle motion of the ledge predominantly normal to the substrate plane with the largest motion at the free edge of the ledge and almost no motion in the substrate, thereby permitting a plurality of such structures to be densely packed on a common substrate.
摘要翻译： 一种改进的声波导结构，其包括沿从衬底向外延伸的水平方向布置的脊波导。 处于凸缘形式的波导的水平取向导致突出部分的主体垂直于基板平面的颗粒运动，在凸缘的自由边缘处具有最大的运动，并且在基板中几乎没有运动，从而允许多个 的这种结构被密集地堆积在共同的基底上。
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公开(公告)号：US4063198A
公开(公告)日：1977-12-13
申请号：US685572
申请日：1976-05-12
CPC分类号： H03H9/02 , G10K11/24 , G01N2291/02491 , G01N2291/0427
摘要： An improved acoustic waveguide structure which comprises a ridge waveguide disposed in a horizontal direction extending outwardly from a substrate. The horizontal orientation of the waveguide which is in the form of a ledge results in particle motion of the ledge predominantly normal to the substrate plane with the largest motion at the free edge of the ledge and almost no motion in the substrate, thereby permitting a plurality of such structures to be densely packed on a common substrate.
摘要翻译： 一种改进的声波导结构，其包括沿从衬底向外延伸的水平方向布置的脊波导。 处于凸缘形式的波导的水平取向导致突出部分的主体垂直于基板平面的颗粒运动，在凸缘的自由边缘处具有最大的运动，并且在基板中几乎没有运动，从而允许多个 的这种结构被密集地堆积在共同的基底上。
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公开(公告)号：US4055821A
公开(公告)日：1977-10-25
申请号：US685243
申请日：1976-05-11
CPC分类号： G10K11/24 , G01N2291/02491 , G01N2291/0427
摘要： An improved acoustic waveguide structure which comprises a ridge waveguide disposed in a horizontal direction extending outwardly from a substrate. The horizontal orientation of the waveguide which is in the form of a ledge results in particle motion of the ledge predominantly normal to the substrate plane with the largest motion at the free edge of the ledge and almost no motion in the substrate, thereby permitting a plurality of such structures to be densely packed on a common substrate.
摘要翻译： 一种改进的声波导结构，其包括沿从衬底向外延伸的水平方向布置的脊波导。 处于凸缘形式的波导的水平取向导致突出部分的主体垂直于基板平面的颗粒运动，在凸缘的自由边缘处具有最大的运动，并且在基板中几乎没有运动，从而允许多个 的这种结构被密集地堆积在共同的基底上。
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公开(公告)号：US4055819A
公开(公告)日：1977-10-25
申请号：US685968
申请日：1976-05-13
CPC分类号： H03H9/42 , G10K11/24 , G01N2291/02491 , G01N2291/0427
摘要： An improved acoustic waveguide structure which comprises a ridge waveguide disposed in a horizontal direction extending outwardly from a substrate. The horizontal orientation of the waveguide which is in the form of a ledge results in particle motion of the ledge predominantly normal to the substrate plane with the largest motion at the free edge of the ledge and almost no motion in the substrate, thereby permitting a plurality of such structures to be densely packed on a common substrate.
摘要翻译： 一种改进的声波导结构，其包括沿从衬底向外延伸的水平方向布置的脊波导。 处于凸缘形式的波导的水平取向导致突出部分的主体垂直于基板平面的颗粒运动，在凸缘的自由边缘处具有最大的运动，并且在基板中几乎没有运动，从而允许多个 的这种结构被密集地堆积在共同的基底上。
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公开(公告)号：US3974464A
公开(公告)日：1976-08-10
申请号：US451718
申请日：1974-03-15
CPC分类号： H03H9/02 , G10K11/24 , G01N2291/02491 , G01N2291/0427
摘要： An improved acoustic waveguide structure which comprises a ridge waveguide disposed in a horizontal direction extending outwardly from a substrate. The horizontal orientation of the waveguide which is in the form of a ledge results in particle motion of the ledge predominantly normal to the substrate plane with the largest motion at the free edge of the ledge and almost no motion in the substrate, thereby permitting a plurality of such structures to be densely packed on a common substrate.
摘要翻译： 一种改进的声波导结构，其包括沿从基板向外延伸的水平方向布置的脊波导。 处于凸缘形式的波导的水平取向导致突出部分的主体垂直于基板平面的颗粒运动，在凸缘的自由边缘处具有最大的运动，并且在基板中几乎没有运动，从而允许多个 的这种结构被密集地堆积在共同的基底上。
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公开(公告)号：US4447754A
公开(公告)日：1984-05-08
申请号：US422810
申请日：1982-09-24
申请人： Robert S. Wagers
发明人： Robert S. Wagers
CPC分类号： H03H9/14502
摘要： A broad band surface acoustic wave (SAW) device has an edge-deposited transducer (EDT) capable of frequencies in excess of 1 GHz and bandwidths in the hundreds of MHz. The device includes a transducer on a semiconductor substrate which is either non-piezoelectric or weakly piezoelectric. The substrate has a sharp, smooth edge formed by the intersection of its top and a side surface. The transducer includes a passivation layer deposited on the side surface of the substrate and a starter layer deposited on the passivation layer; an inner metallic (gold, for example) electrode deposited on the starter layer; a transducer layer deposited on the inner metallic electrode; and an outer metallic electrode deposited on the transducer layer. The outer electrode is formed on the transducer layer one-fifth wavelength below the top surface of the substrate. When the transducer is excited, bulk longitudinal waves are generated in the transducer layer which couple to the longitudinal component of the surface wave in the substrate causing the SAW mode to propagate away from the transducer.
摘要翻译： 宽带表面声波（SAW）器件具有能够超过1GHz的频率并且几百MHz的带宽的边缘沉积传感器（EDT）。 该器件包括在非压电或弱压电的半导体衬底上的换能器。 基板具有由其顶部和侧表面相交形成的尖锐的光滑边缘。 换能器包括沉积在衬底的侧表面上的钝化层和沉积在钝化层上的起始层; 沉积在起动器层上的内金属（例如金）; 沉积在内金属电极上的换能器层; 以及沉积在换能器层上的外部金属电极。 外部电极形成在基板上表面下方的五分之一波长的换能器层上。 当换能器被激发时，在换能器层中产生体纵波，其耦合到衬底中的表面波的纵向分量，导致SAW模式传播离开换能器。
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公开(公告)号：US4870376A
公开(公告)日：1989-09-26
申请号：US561771
申请日：1983-12-15
申请人： Robert S. Wagers
发明人： Robert S. Wagers
IPC分类号： G06G7/195
CPC分类号： G06G7/195
摘要： The disclosure relates to a microstrip circuit which is used to combine the energy output from the convolving plate of a surface acoustic wave (SAW) monolithic elastic convolver. The convolving plate is tapped at its two ends and a Wilkinson combiner is used to sum the signals that propagate to the ends of the plate. The Wilkinson combiner is a three-port device with the two arms that couple to the convolver plate having their characteristic impedances set to match that of the acoustic waveguide. In view of the impedance match, no electromagnetic reflections are produced at the end of the convolving plate and all of the energy incident on the Wilkinson combiner is summed and delivered to the output port of the combiner. Additionally, the microstrip circuit has an impedance transformer to transform down to an impedance suitable for driving an output amplifier chain of a receiving system.In accordance with a second embodiment of the invention, a plurality of convolvers is connected together in a Christmas tree-type of arrangement to maintain spatial amplitude uniformity while minimizing the phase delay that occurs from propagation from the center of the elastic convolver to the outer extremes thereof.In accordance with a third embodiment of the invention, the Wilkinson convolvers of FIG. 2 are replaced by microstrips configured to sum the outputs from all of the convolver sections without reflections. This embodiment provides an impedance matched to the driving segments of the convolving plate and produces broad band power combining internal to the microstrip of the output circuit. This embodiment eliminates potential losses within the microstrip circuit from power dissipation in lumped resistors inherent in the Wilkinson embodiment.
摘要翻译： 本公开涉及一种微带电路，其用于组合来自表面声波（SAW）单片弹性卷积器的卷积板的能量输出。 卷积板在其两端被敲击，并且使用Wilkinson组合器对传播到板的端部的信号求和。 Wilkinson组合器是三端口器件，其两个臂耦合到卷积板，其特征阻抗设置为与声波导的阻抗相匹配。 鉴于阻抗匹配，在卷积板的末端没有产生电磁反射，并且入射到Wilkinson组合器上的所有能量被相加并传送到组合器的输出端口。 此外，微带电路具有阻抗变换器，以变换为适于驱动接收系统的输出放大器链的阻抗。 根据本发明的第二实施例，多个卷积器以圣诞树型装置连接在一起以保持空间幅度均匀性，同时最小化从弹性卷积器的中心到外部极端的传播发生的相位延迟 其中。 根据本发明的第三实施例，图2的Wilkinson卷积器 2被配置成将没有反射的来自所有卷积器部分的输出相加的微带代替。 该实施例提供了与卷积板的驱动段匹配的阻抗，并产生在输出电路的微带内部组合的宽带功率。 该实施例消除了微带电路内的威胁性实施例中固有的集总电阻中的电力损耗。
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8.发明授权
公开(公告)号：US4629288A
公开(公告)日：1986-12-16
申请号：US561693
申请日：1983-12-15
申请人： Robert S. Wagers
发明人： Robert S. Wagers
CPC分类号： G02B26/0816 , G09F19/18
摘要： An optical spatial address system wherein a collimated light beam which is deflectable in a predetermined manner strikes a backdrop having one or more sets of reflecting facets thereon to direct the beam to a unique point in a three-dimensional space as defined by the predetermined deflection of the light beam for the case of two sets of facets. The facets are designed to preferably direct the beam from the source from the first set of facets along an axis in three-dimensional space to the second set of facets, the latter facets directing the beam along an axis orthogonal to the direction of the beam impinging thereon.
摘要翻译： 光学空间地址系统，其中以预定方式可偏转的准直光束照射到其上具有一组或多组反射小面的背景，以将光束引导到由三维空间中的预定偏转所限定的三维空间中的唯一点 光束为两组面的情况。 小面被设计成优选地将来自第一组面的光源的光束沿着三维空间中的轴引导到第二组小面，后面的小平面沿着与光束撞击的方向正交的轴线引导光束 上。
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公开(公告)号：US4369390A
公开(公告)日：1983-01-18
申请号：US229709
申请日：1981-01-30
CPC分类号： H03H9/44 , H03H9/02708
摘要： A structure for compressing an acoustic surface wave into a symmetric higher energy density output surface acoustic wave. Conductive strips are placed in parallel upon a piezoelectric surface. When a symmetric input is generated at one side of the multistrip coupler, the energy of the input wave is compressed into the center channel and is presented at the output in a single moded symmetric form.
摘要翻译： 一种用于将声表面波压缩成对称的较高能量密度输出声表面波的结构。 导电条平行放置在压电表面上。 当在多段耦合器的一侧产生对称输入时，输入波的能量被压缩成中心通道，并以单一对称形式呈现在输出端。
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10.发明授权
公开(公告)号：US4016440A
公开(公告)日：1977-04-05
申请号：US579340
申请日：1975-05-21
申请人： Robert S. Wagers
发明人： Robert S. Wagers
CPC分类号： H03H9/02559 , H01L41/18
摘要： This disclosure concerns a particularly oriented plate-like monocrystalline piezoelectric body of lithium niobate for use as a substrate in an acoustic surface wave filter device, wherein the orientation of the piezoelectric body of lithium niobate is responsible for a substantial reduction in spurious responses including plate modes. More specifically, the piezoelectric body comprises a plate of lithium niobate having a crystalline lattice orientation as determined by a 46.degree. (ZYW) cut. It has been determined that such a piezoelectric body may be employed as a substrate in an acoustic surface wave filter device to effect an improved filter response in that unwanted spurious responses including those caused by plate modes are removed or substantially reduced from the acoustic signals prior to their conversion into electrical output signals.
摘要翻译： 本公开涉及用于声表面波滤波器装置中用作衬底的铌酸锂的特别取向的板状单晶体压电体，其中铌酸锂的压电体的取向负责大量减少杂散响应，包括板模式 。 更具体地，压电体包括具有通过46°（ZYW）切割确定的晶格取向的铌酸锂板。 已经确定，这样的压电体可以用作声表面波滤波器装置中的基板，以实现改进的滤波器响应，因为包括由平板模式引起的不期望的杂散响应被去除或从 它们转换成电气输出信号。
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