Method of making a monolithic thin film resonator lattice filter
    1.
    发明授权
    Method of making a monolithic thin film resonator lattice filter 失效
    制造单片薄膜谐振器晶格滤波器的方法

    公开(公告)号:US5692279A

    公开(公告)日:1997-12-02

    申请号:US516220

    申请日:1995-08-17

    摘要: A monolithic thin film resonator, lattice filter including spaced apart strips of a conductive film positioned on a substrate so as to define a first set of I/O terminals, a layer of piezoelectric material positioned on the conductive film, and spaced apart conductive strips of a conductive film positioned on the piezoelectric layer orthogonal to the first strips to form cross-over areas, each defining a thin film resonator and a second set of I/O terminals. A plurality of portions of a dielectric film are positioned on selected cross-over areas to mass load the thin film resonators so as to lower the resonant frequency.

    摘要翻译: 单片薄膜谐振器,格栅滤光器,其包括定位在基板上的间隔开的导电膜条,以限定第一组I / O端子,位于导电膜上的压电材料层和间隔开的导电条 位于与第一条带正交的压电层上的导电膜,以形成交叉区域,每个限定薄膜谐振器和第二组I / O端子。 电介质膜的多个部分位于选定的交叉区域上以对薄膜谐振器进行质量负载以便降低谐振频率。

    Electronically tunable capacitor switch
    2.
    发明授权
    Electronically tunable capacitor switch 失效
    电可调谐电容开关

    公开(公告)号:US5166857A

    公开(公告)日:1992-11-24

    申请号:US812927

    申请日:1991-12-24

    摘要: An integrated switch (100) includes a first input port (102), a second input port (112) and an output port (106). The integrated switch (100) comprises a first electronically-tunable integrated capacitor (104) having a control line (108) for selectively coupling the first input port (102) to the output port (106). The switch (100) also includes a second electronically-tunable integrated capacitor (110) having a control line (108) for selectively coupling the second input port (112) to the output port (106).

    摘要翻译: 集成开关(100)包括第一输入端口(102),第二输入端口(112)和输出端口(106)。 集成开关(100)包括具有用于选择性地将第一输入端口(102)耦合到输出端口(106)的控制线(108)的第一电子可调谐集成电容器(104)。 开关(100)还包括具有用于选择性地将第二输入端口(112)耦合到输出端口(106)的控制线(108)的第二电子可调谐集成电容器(110)。

    Resonator filter utilizing cascaded impedance inverters
    3.
    发明授权
    Resonator filter utilizing cascaded impedance inverters 失效
    谐振滤波器采用级联阻抗逆变器

    公开(公告)号:US5499002A

    公开(公告)日:1996-03-12

    申请号:US234748

    申请日:1994-04-28

    申请人: Robert G. Kinsman

    发明人: Robert G. Kinsman

    IPC分类号: H03H9/00 H03H9/54

    CPC分类号: H03H9/542

    摘要: A filter (200) having an input terminal (208), an output terminal (209), and a common terminal (210) includes two impedance inverters (201,202) and a first resonator (203) that is operable at a resonant frequency. Each impedance inverter (201, 202) is coupled to the common terminal (210) at a common node (223) and includes a corresponding input node (221,225) and output node (222, 226). The input node (221) of the first impedance inverter (201) is coupled to the input terminal (208). The input node (225) of the second impedance inverter (202) is coupled to the output node (222) of the first impedance inverter (201), while the output node (226) of the second impedance inverter (202) is coupled (e.g., via a second resonator (205)) to the output terminal (209). The first resonator (203) is coupled between the input terminal (208) and the output terminal (209).

    摘要翻译: 具有输入端子(208),输出端子(209)和公共端子(210)的滤波器(200)包括可以谐振频率操作的两个阻抗变换器(201,202)和第一谐振器(203)。 每个阻抗逆变器(201,202)在公共节点(223)处耦合到公共终端(210),并且包括对应的输入节点(221,225)和输出节点(222,226)。 第一阻抗逆变器(201)的输入节点(221)耦合到输入端子(208)。 第二阻抗逆变器(202)的输入节点(225)耦合到第一阻抗逆变器(201)的输出节点(222),而第二阻抗逆变器(202)的输出节点(226)耦合( 例如经由第二谐振器(205))连接到输出端子(209)。 第一谐振器(203)耦合在输入端(208)和输出端(209)之间。

    Monolithic lattice saw filter
    4.
    发明授权
    Monolithic lattice saw filter 失效
    单晶格栅过滤器

    公开(公告)号:US4785270A

    公开(公告)日:1988-11-15

    申请号:US139419

    申请日:1987-12-30

    申请人: Robert G. Kinsman

    发明人: Robert G. Kinsman

    CPC分类号: H03H9/6426

    摘要: A monolithic lattice SAW bandpass filter having low insertion loss and a wide bandwidth range is described herein. Specifically, the bandpass filter includes a monolithic piezoelectric substrate and two dual port SAW device disposed on the substrate and coupled in a full lattice circuit configuration. In a second bandpass filter design the filter includes a monolithic substrate and two sets of dual port SAW devices disposed on the substrate and coupled in a cascaded circuit configuration such that no electrical crossovers occurs on the substrate.

    Unbalanced saw filter
    5.
    发明授权
    Unbalanced saw filter 失效
    不平衡锯式过滤器

    公开(公告)号:US5093638A

    公开(公告)日:1992-03-03

    申请号:US608866

    申请日:1990-11-05

    IPC分类号: H03H9/64

    CPC分类号: H03H9/009

    摘要: An unbalanced surface acoustic wave (SAW) resonator-filter is achieved by using a predetermined length of unbalanced transmission line to define a ground potential and permit two SAW resonators and such transmission line to function together as an unbalanced filter.

    摘要翻译: 通过使用预定长度的不平衡传输线来限定地电位并允许两个SAW谐振器和这种传输线一起作为不平衡滤波器来实现不平衡声表面波(SAW)谐振器滤波器。

    Crystal notch filter comprising discrete quartz crystals coupled to a
trimmable RC bridging network
    6.
    发明授权
    Crystal notch filter comprising discrete quartz crystals coupled to a trimmable RC bridging network 失效
    晶体陷波滤波器包括耦合到可调谐RC桥接网络的离散石英晶体

    公开(公告)号:US5030934A

    公开(公告)日:1991-07-09

    申请号:US375757

    申请日:1989-07-05

    申请人: Robert G. Kinsman

    发明人: Robert G. Kinsman

    IPC分类号: H03H9/58 H03H9/54

    CPC分类号: H03H9/542

    摘要: An improved crystal notch filter is disclosed with a large passband-to-stopband ratio. The filter has individual sections with discrete crystal devices. In one embodiment as a 55 MHz trap, the filter has a passband from about 50 MHz to about 212 MHz with a 1 KHz stop band about a center frequency that may be tuned by means of a laser-trimmed bridging resistor.

    摘要翻译: 公开了一种改进的晶体陷波滤波器,其具有大的通带至阻带比。 滤波器具有独立的分立晶体器件。 在一个实施例中,作为55MHz陷波器,滤波器具有从约50MHz至约212MHz的通带,并且可以通过激光修整桥接电阻器调谐中心频率的1KHz阻带。

    Multiple pole bandpass filter having monolithic crystal elements
    8.
    发明授权
    Multiple pole bandpass filter having monolithic crystal elements 失效
    具有单片晶体元件的多极带通滤波器

    公开(公告)号:US4423394A

    公开(公告)日:1983-12-27

    申请号:US803903

    申请日:1977-06-06

    申请人: Robert G. Kinsman

    发明人: Robert G. Kinsman

    CPC分类号: H03H9/542

    摘要: A symmetrical two pole monolithic crystal filter is combined with appropriate value fixed capacitors and cascaded with other similar filter elements to provide a high order filter with symmetrical transmission zeros and low passband ripple. The filter includes a piezoelectric resonating element having first and second opposite sides with first and second pairs of electrodes thereon. A first capacitor is coupled to an electrode of the first pair located on the first side and a second capacitor is coupled to an electrode of the second pair of the electrodes located on the first side. A shunting capacitor is used between the electrodes of the first and second pairs located on the first side. A fourth capacitor is coupled from both of the first and second electrodes located on the second side.

    摘要翻译: 一个对称的双极单片晶体滤波器与适当值的固定电容器组合,并与其他类似的滤波器元件级联,以提供具有对称传输零点和低通带纹波的高阶滤波器。 滤波器包括压电谐振元件,其具有在其上的第一和第二对电极的第一和第二相对侧。 第一电容器耦合到位于第一侧上的第一对的电极,第二电容器耦合到位于第一侧上的第二对电极的电极。 在位于第一侧的第一对和第二对的电极之间使用分流电容器。 第四电容器从位于第二侧的第一电极和第二电极耦合。