High efficiency outphasing transmitter for electronically scanned arrays
    1.
    发明授权
    High efficiency outphasing transmitter for electronically scanned arrays 有权
    用于电子扫描阵列的高效率外置变送器

    公开(公告)号:US09137067B1

    公开(公告)日:2015-09-15

    申请号:US14109377

    申请日:2013-12-17

    摘要: High efficiency transmitters for electronically scanned arrays (also known as electronically steered antennas or ESAs) are disclosed. The transmitters in accordance with the present disclosure utilize outphasing power amplification. In one embodiment, the outphasing transmitter includes a phase shifting device. The phase shifting device is configured for phase shifting an input signal and providing a pair of phase shifted signals for each emitting element of the EAS. The outphasing transmitter also includes an outphasing power amplifier associated with each emitting element. Each outphasing power amplifier is configured for separately amplifying the pair of shifted signals for each emitting element and combining the separately amplified signals for each emitting element for transmission.

    摘要翻译: 公开了用于电子扫描阵列(也称为电子导向天线或ESA)的高效发射机。 根据本公开的发射机利用了外部功率放大。 在一个实施例中,旁相变送器包括相移装置。 相移装置被配置为对输入信号进行相移,并为EAS的每个发射元件提供一对相移信号。 外相发射机还包括与每个发射元件相关联的外接功率放大器。 每个旁相功率放大器被配置为分别放大每个发射元件的一对移位信号,并且组合用于每个发射元件的单独放大的信号用于传输。

    Method of installing valves in a micro-pump
    2.
    发明授权
    Method of installing valves in a micro-pump 失效
    在微型泵中安装阀门的方法

    公开(公告)号:US06749407B2

    公开(公告)日:2004-06-15

    申请号:US10225895

    申请日:2002-08-22

    IPC分类号: F04B1700

    摘要: An exemplary method for making a micropump device is disclosed as providing inter alia a substrate (300), an inlet opening (310), and outlet opening (340), a pump chamber (370) and flapper valves (350, 360). The fluid inlet channel (310) is generally configured to flow a fluid through/around the inlet opening flapper valve (350). The outlet opening flapper valve (360) generally provides means for preventing or otherwise decreasing the incidence of outlet fluid re-entering either the pumping cavity (370) and/or the fluid inlet channel (310). Accordingly, the reduction of backflow generally tends to enhance overall pumping efficiency. Disclosed features and specifications may be variously controlled, adapted or otherwise optionally modified to improve micropump operation in any microfluidic application. Exemplary embodiments of the present invention representatively provide for substantially self-priming gas/liquid micropumps that may be readily integrated with existing portable ceramic technologies for the improvement of device package form factors, weights and other manufacturing and/or device performance metrics.

    摘要翻译: 公开了一种用于制造微型泵装置的示例性方法,其特别是提供了一种衬底(300),一个入口开口(310)和出口开口(340),一个泵室(370)和挡板阀(350,360)。 流体入口通道(310)通常构造成使流体流过/通过入口开口挡板(350)。 出口打开挡板阀(360)通常提供用于防止或以其他方式减少出口流体再次进入泵送空腔(370)和/或流体入口通道(310)的入口的装置。 因此,回流的减少通常趋向于提高整体泵送效率。 公开的特征和规格可以被不同地控制,适应或以其他方式任意地修改以改善任何微流体应用中的微泵操作。 本发明的示例性实施例代表性地提供了可以容易地与现有便携式陶瓷技术集成的基本上自吸气/液体微泵,以改进装置包装形状因子,重量以及其他制造和/或装置性能度量。

    Field emission light source
    3.
    发明授权
    Field emission light source 失效
    场发射光源

    公开(公告)号:US06573643B1

    公开(公告)日:2003-06-03

    申请号:US09677361

    申请日:2000-10-02

    IPC分类号: H01J130

    摘要: A field emission cathode for use in flat panel displays is described including a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. Use of the cathode to form a computer screen is also described along with the use of the cathode to form a fluorescent light source.

    摘要翻译: 描述了用于平板显示器的场发射阴极,其包括沉积在导电材料上以形成发射位点的导电材料层和用作低有效功函数材料的非晶金刚石膜层。 发射部位各自含有至少两个具有不同电子亲和力的亚区域。 还描述了使用阴极形成计算机屏幕,同时使用阴极来形成荧光光源。

    Field emission display having a multi-layered barrier structure
    4.
    发明授权
    Field emission display having a multi-layered barrier structure 失效
    具有多层势垒结构的场发射显示

    公开(公告)号:US06353286B1

    公开(公告)日:2002-03-05

    申请号:US09414737

    申请日:1999-10-08

    IPC分类号: H01J1924

    CPC分类号: H01J29/085 H01J2329/00

    摘要: A field emission display (100) includes an electron emitter structure (105) designed to emit an emission current (134), a phosphor (126) disposed to receive at an electron-receiving surface (127) emission current (134), and a multi-layered barrier structure (125) disposed on electron-receiving surface (127) of phosphor (126). Multi-layered barrier structure (125) of the preferred embodiment includes an aluminum layer (128) disposed on electron-receiving surface (127) of phosphor (126) and a carbon layer (129) disposed on aluminum layer (128).

    摘要翻译: 场致发射显示器(100)包括被设计为发射发射电流(134)的电子发射器结构(105),设置成在电子接收表面(127)发射电流(134))处接收的荧光体(126) 设置在荧光体(126)的电子接收表面(127)上的多层势垒结构(125)。 优选实施例的多层阻挡结构(125)包括设置在磷光体(126)的电子接收表面(127)上的铝层(128)和设置在铝层(128)上的碳层。

    High breakdown field emission device with tapered cylindrical spacers
    5.
    发明授权
    High breakdown field emission device with tapered cylindrical spacers 失效
    具有锥形圆柱形间隔件的高击穿场发射装置

    公开(公告)号:US5777432A

    公开(公告)日:1998-07-07

    申请号:US838494

    申请日:1997-04-07

    申请人: Chenggang Xie

    发明人: Chenggang Xie

    摘要: A field emission device (100) includes a supporting substrate (110) having a major surface; a cathode (111) disposed on the major surface of the supporting substrate (110); a dielectric layer (112) disposed on the cathode (111); a gate extraction electrode (114) disposed on the dielectric layer (112); the cathode (111), the dielectric layer (112), and the gate extraction electrode (114) defining a spacer well (132); an anode plate (104) opposing the gate extraction electrode (114); a spacer (106) extending between the cathode (111) at the spacer well (132) and the anode plate (104); a first spacer shield (108) disposed within the spacer well (132) and surrounding the spacer (106); and a second spacer shield (108) affixed to the anode plate (104) and surrounding the spacer (106).

    摘要翻译: 场发射器件(100)包括具有主表面的支撑衬底(110) 设置在所述支撑基板(110)的主表面上的阴极(111); 布置在阴极(111)上的电介质层(112); 设置在电介质层(112)上的栅极引出电极(114); 阴极(111),电介质层(112)和栅极引出电极(114),限定间隔阱(132); 与栅极引出电极(114)相对的阳极板(104); 在间隔阱(132)的阴极(111)和阳极板(104)之间延伸的间隔物(106); 设置在所述间隔阱(132)内并围绕所述间隔物(106)的第一间隔屏蔽件(108); 以及固定到所述阳极板(104)并围绕所述间隔件(106)的第二间隔屏蔽件(108)。

    Minimizing interference between multiple signals over a wide bandwidth
    9.
    发明授权
    Minimizing interference between multiple signals over a wide bandwidth 有权
    在宽带宽内最大限度地减少多个信号之间的干扰

    公开(公告)号:US08817822B1

    公开(公告)日:2014-08-26

    申请号:US13010186

    申请日:2011-01-20

    IPC分类号: H04J1/00

    摘要: A device may include a first antenna and a second antenna. The device may further include a frequency domain multiplexer configured for receiving a first input signal. The frequency domain multiplexer may have a first output port connected to the first antenna and configured for supplying a signal in a low band frequency range of the first input signal to the first antenna, and a second output port connected to the second antenna and configured for supplying a signal in a high band frequency range of the first input signal to the second antenna. The device may also include a third antenna configured for receiving a signal in a mid band frequency range of a second input signal. The low band frequency range may be separated from the high band frequency range.

    摘要翻译: 设备可以包括第一天线和第二天线。 该设备还可以包括被配置为接收第一输入信号的频域多路复用器。 频域多路复用器可以具有连接到第一天线的第一输出端口,并且被配置为将第一输入信号的低频带频率的信号提供给第一天线,以及连接到第二天线的第二输出端口, 将第一输入信号的高频带范围的信号提供给第二天线。 该设备还可以包括被配置为在第二输入信号的中频带频率范围内接收信号的第三天线。 低频带的频率范围可以与高频带的频率范围分开。

    System and method for controlling methanol concentration in a fuel cell
    10.
    发明授权
    System and method for controlling methanol concentration in a fuel cell 失效
    控制燃料电池中甲醇浓度的系统和方法

    公开(公告)号:US06942939B2

    公开(公告)日:2005-09-13

    申请号:US10323036

    申请日:2002-12-18

    申请人: Chenggang Xie

    发明人: Chenggang Xie

    摘要: A system and method for controlling or otherwise effectively parameterizing the delivery of fuel to a fuel cell device comprises a fuel pump (330), a mixing chamber (310), a fuel concentration sensor (350), a control device (360), a pump driver (370) and a pulse generator (380). Various features and parameters of the present invention may be suitably adapted to optimize the fuel transport function for any particular fuel cell design. The present invention provides inter alia improved control of delivery of methanol to a DMFC fuel solution.

    摘要翻译: 用于控制或以其他方式有效地将燃料输送参数化到燃料电池装置的系统和方法包括燃料泵(330),混合室(310),燃料浓度传感器(350),控制装置(360), 泵驱动器(370)和脉冲发生器(380)。 本发明的各种特征和参数可以适合于优化用于任何特定燃料电池设计的燃料输送功能。 本发明尤其提供了改进甲醇输送到DMFC燃料溶液的控制。