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    • 36. 发明授权
    • Active alignment system for free space optics
    • 用于自由空间光学的主动对准系统
    • US07212706B2
    • 2007-05-01
    • US10824141
    • 2004-04-14
    • Kenneth D. WhiteWarren H. MillerMark T. MontgomeryReeder N. Ward
    • Kenneth D. WhiteWarren H. MillerMark T. MontgomeryReeder N. Ward
    • G02B6/32G02B6/42
    • H01Q1/1264H04B10/1127
    • An optical transceiver antenna has a pair of cartridges supported by a pan/tilt mount. A lens at forward end of a cartridge interfaces light between an end of a light relay element retained by an axial deflection device and free space. The forward end of a cartridge also terminates first ends of actuator wires that are mutually rotationally displaced a distance of 90° from one another in a plane normal to a boresight axis of the antenna. The actuator wires have second wire terminations at the axial deflection device which are mutually rotationally displaced a distance of 90° from one another in a plane passing through the axial deflection device normal to the boresight axis. Heating currents are supplied to the actuator wires, causing their lengths to change, thereby flexing the axial deflection device and light relay element off boresight.
    • 光收发器天线具有由摇摄/倾斜支架支撑的一对盒。 盒的前端的透镜在由轴向偏转装置保持的光继电器元件的端部与自由空间之间接合光。 盒的前端还终止在垂直于天线的视轴的平面中相互旋转移位90度的致动器线的第一端。 致动器线具有在轴向偏转装置处的第二线端接件,它们在通过垂直于视轴的轴向偏转装置的平面中彼此相互旋转移位90°的距离。 加热电流被提供给致动器线,导致其长度改变,从而使轴向偏转装置和光继电器元件偏离视轴。
    • 37. 发明授权
    • Index-guided solid acoustic traveling wave lens
    • 折射率固体声波行波透镜
    • US6052215A
    • 2000-04-18
    • US235697
    • 1999-01-22
    • Robert M. MontgomeryReeder N. WardMark T. MontgomeryPat O. Bentley
    • Robert M. MontgomeryReeder N. WardMark T. MontgomeryPat O. Bentley
    • G02F1/33G02F1/11G02F1/335
    • G02F1/33
    • A solid state acoustic travelling wave lens comprises a thin core layer of acoustic and light transmissive material, such as crystalline quartz, compression-bonded between a pair of outer or cladding layers, such as fused silica, having an acoustic velocity that is only slightly higher than (e.g., less than five percent of) that of the core material. The acoustic mode field characteristic of the weakly guiding device contains no spatial variations caused by Fresnel diffraction in an unguided wave device. In a second embodiment, shear stress coupling between the core and cladding layers is inhibited by interposing very thin liquid boundary layers between the core layer and the cladding layers. Such thin liquid boundary layers, which are relatively more compressible than the core and cladding material, allow longitudinal waves to be transmitted across the core/cladding boundary (through the liquid), but prevent transmission of shear waves therebetween.
    • 固体声波行波透镜包括声光透射材料的薄芯层,例如结晶石英,压缩在一对外层或覆层之间,例如熔融二氧化硅,其声速仅略高 (例如,不到5%)的核心材料。 弱引导装置的声模场特性不包含非导波装置中由菲涅耳衍射引起的空间变化。 在第二实施例中,通过在芯层和包覆层之间插入非常薄的液体边界层来抑制芯和包层之间的剪切应力耦合。 这种比芯和包层材料相对更可压缩的薄的液体边界层允许纵向波纹穿过芯/包层边界(通过液体)传输,但是防止它们之间的剪切波传播。
    • 38. 发明授权
    • High isolation antenna system
    • 高隔离天线系统
    • US08937578B2
    • 2015-01-20
    • US12873823
    • 2010-09-01
    • Mark T. Montgomery
    • Mark T. Montgomery
    • H01Q1/24H01Q1/52H01Q5/00H01Q9/16H01Q9/42
    • H01Q1/523H01Q1/243H01Q1/521H01Q5/328H01Q5/35H01Q5/40H01Q9/16H01Q9/42
    • An antenna system supports a common resonance mode and differential resonance mode, each with approximately equal radiation resistance and bandwidth at a given operating frequency band. The antenna system includes a resonant antenna section, a counterpoise, and two antenna ports. The resonant antenna section includes two spaced-apart poles and a distributed network therebetween. Each of the poles has a proximal end connected to the distributed network and an opposite distal end. The distal ends of the poles are separated from each other by a distance of ⅓ to ⅔ of the electrical wavelength at the given operating frequency. Each of the two antenna ports is defined by a pair of feed terminals with one feed terminal located on the counterpoise and the other feed terminal located on a different one of the poles of the resonant antenna section. The resonant antenna section, counterpoise, and ports are configured such that a signal within the given operating frequency band applied to one port is isolated from the other port.
    • 天线系统支持公共谐振模式和差分谐振模式,每个谐振模式和差分谐振模式在给定的工作频段具有大致相等的辐射电阻和带宽。 天线系统包括谐振天线部分,平衡线和两个天线端口。 谐振天线部分包括两个间隔开的极点和它们之间的分布式网络。 每个极具有连接到分布式网络的近端和相对的远端。 磁极的远端在给定的工作频率下彼此隔开电波长的1/3至。的距离。 两个天线端口中的每一个由一对馈电端子限定,其中一个馈电端子位于平衡点上,另一馈电端子位于谐振天线部分的不同一个极上。 谐振天线部分,平衡端口和端口被配置为使得施加到一个端口的给定工作频带内的信号与另一个端口隔离。