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    MEMS RF switch with low actuation voltage
    3.
    发明授权
    MEMS RF switch with low actuation voltage 有权
    具有低致动电压的MEMS RF开关

    公开(公告)号：US06639488B2

    公开(公告)日：2003-10-28

    申请号：US09948478

    申请日：2001-09-07

    申请人： Hariklia Deligianni ,  Robert Groves ,  Christopher Jahnes ,  Jennifer L. Lund ,  Panayotis Andricacos ,  John Cotte ,  L. Paivikki Buchwalter ,  David Seeger ,  Raul E. Acosta

    发明人： Hariklia Deligianni ,  Robert Groves ,  Christopher Jahnes ,  Jennifer L. Lund ,  Panayotis Andricacos ,  John Cotte ,  L. Paivikki Buchwalter ,  David Seeger ,  Raul E. Acosta

    IPC分类号： H01P110

    CPC分类号： H01P1/12 ,  H01H59/0009 ,  H01H2059/0036

    摘要： Disclosed is a capacitive electrostatic MEMS RF switch comprised of a lower electrode that acts as both a transmission line and as an actuation electrode. Also, there is an array of one or more fixed beams above the lower electrode that is connected to ground. The lower electrode transmits the RF signal when the top beam or beams are up and when the upper beams are actuated and bent down, the transmission line is shunted to ground ending the RF transmission. A high dielectric constant material is used in the capacitive portion of the switch to achieve a high capacitance per unit area thus reducing the required chip area and enhancing the insertion loss characteristics in the non-actuated state. A gap between beam and lower electrode of less than 1 &mgr;m is incorporated in order to minimize the electrostatic potential (pull-in voltage) required to actuate the switch.

    摘要翻译： 公开了一种电容静电MEMS RF开关，其由作为传输线和致动电极两者的下电极组成。 此外，在下电极上方有一个或多个连接到地面的固定梁的阵列。 当顶部梁或梁向上时，下部电极发射RF信号，并且当上部梁被致动并向下弯曲时，传输线被分流到结束RF传输的地面。 在开关的电容部分中使用高介电常数材料以实现每单位面积的高电容，从而在非致动状态下减少所需的芯片面积并增强插入损耗特性。 引入小于1um的光束和下电极之间的间隙以便使致动开关所需的静电电位（拉入电压）最小化。

    Lateral microelectromechanical system switch
    9.
    发明申请
    Lateral microelectromechanical system switch 有权
    侧向微机电系统开关

    公开(公告)号：US20050024169A1

    公开(公告)日：2005-02-03

    申请号：US10915742

    申请日：2004-08-11

    申请人： Hariklia Deligianni ,  Christopher Jahnes ,  Jennifer Lund ,  Lawrence Larson

    发明人： Hariklia Deligianni ,  Christopher Jahnes ,  Jennifer Lund ,  Lawrence Larson

    IPC分类号： H01H59/00 ,  H01H53/00

    CPC分类号： H01H59/0009 ,  H01H2001/0068 ,  H01H2001/0078

    摘要： A switch comprising a substrate, an elongated movable part, a pair of electrical contacts disposed at one side of said part, an actuation electrode disposed at the one side of the part and separated from the pair of electrical contacts, wherein the part, the contacts and the electrode are disposed on the substrate, wherein the elongated movable part is arranged and dimensioned such that the part is movable in a generally lateral direction toward the contacts; the movable part includes a central elongated member fixed to a head having an electrical contact disposed at the one side. One end of the movable part is attached to the substrate by means of various anchoring arrangements.

    摘要翻译： 一种开关，其包括基板，细长可动部分，设置在所述部分一侧的一对电触点，设置在该部分的一侧并与所述一对电触头分离的致动电极，其中所述部分，所述触点 并且所述电极设置在所述基板上，其中所述细长可动部分被布置和尺寸设定成使得所述部件能够沿大致横向方向朝向所述触点移动; 可移动部分包括固定到头部的中心细长构件，其具有设置在一侧的电触头。 可移动部分的一端通过各种锚定装置附接到基板。

    Diaphragm activated micro-electromechanical switch
    10.
    发明申请
    Diaphragm activated micro-electromechanical switch 有权
    隔膜激活微机电开关

    公开(公告)号：US20060017533A1

    公开(公告)日：2006-01-26

    申请号：US10523310

    申请日：2002-08-26

    申请人： Christopher Jahnes ,  Jennifer Lund ,  Katherine Saenger ,  Richard Volant

    发明人： Christopher Jahnes ,  Jennifer Lund ,  Katherine Saenger ,  Richard Volant

    IPC分类号： H01H51/22

    CPC分类号： H01H59/0009

    摘要： A micro-electromechanical (MEM) RF switch provided with a deflectable membrane (60) activates a switch contact or plunger (40). The membrane incorporates interdigitated metal electrodes (70) which cause a stress gradient in the membrane when activated by way of a DC electric field. The stress gradient results in a predictable bending or displacement of the membrane (60), and is used to mechanically displace the switch contact (30). An RF gap area (25) located within the cavity (250) is totally segregated from the gaps (71) between the interdigitated metal electrodes (70). The membrane is electrostatically displaced in two opposing directions, thereby aiding to activate and deactivate the switch. The micro-electromechanical switch includes: a cavity (250); at least one conductive path (20) integral to a first surface bordering the cavity; a flexible membrane (60) parallel to the first surface bordering the cavity (250), the flexible membrane (60) having a plurality of actuating electrodes (70); and a plunger (40) attached to the flexible membrane (60) in a direction away from the actuating electrodes (70), the plunger (40) having a conductive surface that makes electric contact with the conductive paths, opening and closing the switch.

    摘要翻译： 设置有可偏转膜（60）的微机电（MEM）RF开关激活开关触点或柱塞（40）。 膜包含交叉指向的金属电极（70），其通过DC电场激活时引起膜中的应力梯度。 应力梯度导致膜（60）的可预测的弯曲或位移，并且用于机械地移动开关触点（30）。 位于空腔（250）内的RF间隙区域（25）与交叉指向的金属电极（70）之间的间隙（71）完全分离。 膜在两个相反的方向上静电位移，从而有助于启动和停用开关。 微机电开关包括：空腔（250）; 至少一个导电通路（20），与所述空腔相邻的第一表面成一体; 柔性膜（60），其平行于与所述腔（250）接壤的所述第一表面，所述柔性膜（60）具有多个致动电极（70）; 以及沿远离所述致动电极（70）的方向附接到所述柔性膜（60）的柱塞（40），所述柱塞（40）具有导电表面，所述导电表面与所述导电路径电接触，所述开关闭合。