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    • 2. 发明授权
    • Piezoelectrical mechanical actuators for use with small actuator distances and arrays
    • 用于小执行器距离和阵列的压电式机械执行器
    • US06204811B1
    • 2001-03-20
    • US09425631
    • 1999-10-22
    • James R. Phillips
    • James R. Phillips
    • H01P118
    • H01P1/18H01Q3/32H01Q3/36H02N2/062
    • A piezoelectric actuator control circuit includes a first conductor attached to the free end of a piezoelectric device and a second conductor rigidly fixed at a position spaced from the piezoelectric device such that a variable capacitor is created between the first and second conductors. The variable capacitor is then used in a capacitive voltage divider to generate a drive signal which moves the piezoelectric device. Thus, the movement of the piezoelectric device can be precisely controlled. The control circuit allows for precise control of an array of such piezoelectric actuators and is particularly applicable to the use of actuators for controlling a mmWave phase array antenna.
    • 压电致动器控制电路包括附接到压电装置的自由端的第一导体和刚性地固定在与压电装置间隔开的位置处的第二导体,使得在第一和第二导体之间产生可变电容器。 然后将可变电容器用于电容分压器以产生移动压电器件的驱动信号。 因此,能够精确地控制压电元件的移动。 控制电路允许对这种压电致动器的阵列的精确控制,并且特别适用于使用用于控制mm波相位阵列天线的致动器。
    • 5. 发明授权
    • PLZT multi-shutter color electrode pattern
    • PLZT多功能彩色电极图案
    • US4744640A
    • 1988-05-17
    • US770560
    • 1985-08-29
    • James R. Phillips
    • James R. Phillips
    • G02F1/055G02F1/03G02F1/25
    • G02F1/0551
    • An electro-optic display having either variable-color or selectable-color capability is disclosed, with each having particularly efficient electrode patterns for achieving color control. Each implements a passive display utilizing an electro-optic material such as PLZT having one of these types of electrode patterns and aligned with an appropriate multi-colored filter. By applying D.C. control voltages to these sets of electrodes, which are sufficiently small to form unit cells, variable or selectable color is perceived. The patterns may be arranged in a sequence of any length or width, with the three-shutter pattern featuring no surface-mounted crossovers.
    • 公开了具有可变颜色或可选颜色能力的电光显示器,每个具有用于实现颜色控制的特别有效的电极图案。 每个都使用具有这些类型的电极图案之一的电光材料(例如PLZT)来实现无源显示器,并与适当的多色滤色器对准。 通过将DCC控制电压施加到足够小以形成单元的这些电极组,可以感知到可变或可选择的颜色。 这些图案可以以任何长度或宽度的顺序布置,三光闸图案不具有表面安装的分频器。
    • 6. 发明授权
    • Stacked piezoelectric actuators to control waveguide phase shifters and method of manufacture thereof
    • 使用压电致动器控制波导相移器的相控阵天线及其制造方法
    • US06281766B1
    • 2001-08-28
    • US09088255
    • 1998-06-01
    • Hugh Robert MaloneDeborah Sue DendyDean Lawrence CookJames R. PhillipsRichard S. Kommrusch
    • Hugh Robert MaloneDeborah Sue DendyDean Lawrence CookJames R. PhillipsRichard S. Kommrusch
    • H01P118
    • H01Q3/26H01P1/182
    • Waveguide phase shifter (200, FIG. 2 and 300, FIG. 3) uses piezoelectric ceramics to implement a voltage variable actuator (270, 370) for moving at least one dielectric vane (255, 355) relative to a reference surface (206, 306) in a waveguide cavity (285, 385). In this manner, the phase shift in waveguide phase shifters (200, 300) is controlled. In one embodiment, actuator (270) comprises first piezoelectric wafer (210), second piezoelectric wafer (220), first metallic layer (230), second metallic layer (240), third metallic layer (250), mating surface (272) and spacer (265). Actuator (270) uses a stack of piezoelectric materials to establish a lever arm mechanism to establish vertical movement (294) and move dielectric vane (255). Actuator (370) uses a stack of piezoelectric materials to establish vertical movement (394) and move dielectric vane (355). Waveguide phase shifters (200, 300) are used in phased array antenna (400) operating at microwave frequencies.
    • 波导相移器(图2中的200,图3和图3)使用压电陶瓷来实现电压可变致动器(270,370),用于相对于参考表面(206,310)移动至少一个电介质叶片(255,355) 306)在波导腔(285,385)中。 以这种方式,波导相移器(200,300)中的相移被控制。 在一个实施例中,致动器(270)包括第一压电晶片(210),第二压电晶片(220),第一金属层(230),第二金属层(240),第三金属层(250) 间隔物(265)。 致动器(270)使用一堆压电材料来建立杠杆臂机构以建立垂直运动(294)并移动电介质叶片(255)。 致动器(370)使用一叠压电材料来建立垂直运动(394)并移动电介质叶片(355)。 在微波频率工作的相控阵天线(400)中使用波导相移器(200,300)。
    • 7. 发明授权
    • Laser tuning of ceramic bandpass filter
    • 陶瓷带通滤波器的激光调谐
    • US5198788A
    • 1993-03-30
    • US786611
    • 1991-11-01
    • James R. PhillipsAli TootoonchiJohn F. Dullea
    • James R. PhillipsAli TootoonchiJohn F. Dullea
    • H01P1/205H01P11/00
    • H01P11/007H01P1/2056
    • A laser tuning method for tuning a ceramic passband filter comprises forming an untuned filter that includes at least one metallized element, such as a resonator pad, formed of an undersized metal plate. A thick film of a metal powder paste is applied to the filter adjacent to the undersized plate. The paste film is scanned with a laser beam to sinter the metal particles into an integral plate, thereby adjusting the size and shape of the element to obtain a desired performance characteristic. In one aspect of this invention, an output signal in response to a test signal is monitored while laser scanning the paste film, whereupon the laser beam is discontinued when the desired characteristic has been obtained.
    • 用于调谐陶瓷通带滤波器的激光调谐方法包括:形成未谐波滤波器,该滤波器包括至少一个由尺寸过小的金属板形成的金属化元件,例如谐振器片。 将金属粉末糊状物的厚膜施加到与尺寸过小的板相邻的过滤器上。 用激光束扫描膏膜,将金属颗粒烧结成整体板,由此调整元件的尺寸和形状,以获得所需的性能特性。 在本发明的一个方面,在激光扫描糊状物时监测响应于测试信号的输出信号,于是当获得所需特性时激光束被中断。
    • 10. 发明申请
    • Piezoelectric Stack Actuator Assembly
    • 压电堆栈执行器总成
    • US20100308693A1
    • 2010-12-09
    • US12788416
    • 2010-05-27
    • James R. Phillips
    • James R. Phillips
    • H01L41/083H01L41/047H01L41/053
    • H01L41/047H01L41/083
    • A piezoelectric actuator assembly comprising at least a stack of interior piezoelectric wafers which, in one embodiment, each include first and second spaced-apart strips of conductive material defining first and second wrap-around electrodes. The interior wafers are stacked in an alternating relationship wherein the first electrodes and the second electrodes are disposed in an opposed relationship. In one embodiment, the assembly includes an end piezoelectric wafer located at each end of the stack of interior wafers and includes a wrap-around electrode in contact with the interior wafers. A conductive end plate is coupled to each of the end piezoelectric wafers. A terminal wire is coupled to each conductive end plate.
    • 一种压电致动器组件,包括至少一堆内部压电晶片,在一个实施例中,它们各自包括限定第一和第二环绕电极的第一和第二间隔开的导电材料条。 内部晶片以交替的关系堆叠,其中第一电极和第二电极以相对的关系设置。 在一个实施例中,组件包括位于内部晶片堆叠的每个端部处的端部压电晶片,并且包括与内部晶片接触的环绕电极。 导电端板连接到每个端部压电晶片。 端子线耦合到每个导电端板。