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    • 82. 发明申请
    • COMPOSITES FOR ANTENNAS AND OTHER APPLICATIONS
    • 天线和其他应用的复合材料
    • US20140253409A1
    • 2014-09-11
    • US14228627
    • 2014-03-28
    • ALLIANT TECHSYSTEMS INC.
    • Christopher C. FullerJohn R. LambergMichael J. Gawronski
    • H01Q21/00
    • H01Q21/00F41H13/0043F42C13/00G01S7/414G01S13/885G02B1/007G02B5/204H01Q1/28H01Q1/364H01Q21/065Y10T428/31504
    • Composite material, devices incorporating the composite material and methods of forming the composite material are provided. The composite material includes interstitial material that has at least one of a select relative permittivity property value and a select relative permeability property value. The composite material further includes inclusion material within the interstitial material. The inclusion material has at least one of a select relative permeability property value and a select relative permittivity property value. The select relative permeability and permittivity property values of the interstitial and the inclusion materials are selected so that the effective intrinsic impedance of the interstitial and the inclusion material match the intrinsic impedance of air. Devices made from the composite include metamaterial and/or metamaterial-inspired (e.g. near-field LC-type parasitic) substrates and/or lenses, front-end protection, stealth absorbers, filters and mixers. Beyond the intrinsic, applications include miniature antenna and antenna arrays, directed energy weapons, EMI filters, RF and optical circuit components, among others.
    • 提供复合材料,结合复合材料的装置和形成复合材料的方法。 复合材料包括具有选择相对介电常数特性值和选择相对磁导率属性值中的至少一个的间隙材料。 复合材料还包括间隙材料内的夹杂物质。 夹杂材料具有选择相对磁导率特性值和选择相对介电常数特性值中的至少一个。 选择间隙和夹杂材料的选择相对磁导率和介电常数特性值,使得间隙和夹杂材料的有效固有阻抗与空气的固有阻抗匹配。 由复合材料制成的器件包括超材料和/或超材料启发(例如近场LC型寄生)衬底和/或透镜,前端保护,隐形吸收器,过滤器和混合器。 除了内在之外,应用还包括微型天线和天线阵列,定向能量武器,EMI滤波器,RF和光电路元件等。
    • 86. 发明授权
    • Methods for electro-mechanical safety and arming of a projectile
    • 射弹的机电安全和布防方法
    • US08616127B2
    • 2013-12-31
    • US13647846
    • 2012-10-09
    • Alliant Techsystems Inc.
    • Hossein AliaghaiKristen L. GerzinaDennis Lagerquist
    • F42C15/34
    • F42C15/188F42C15/24F42C15/40
    • A safety and arming apparatus for use with a projectile includes a rotor pivotable between a safe position and an armed position. A biasing element holds a mass engaged with the rotor to restrain the rotor from rotation and is deformable to allow the mass to displace and disengage from the rotor in response to a setback force on the projectile. A second biasing element includes a displaceable end for engaging with the rotor to restrain the rotor from rotation and is deformable to disengage the displaceable end from the rotor in response to projectile spin. A piston actuator can rotate the rotor to the armed position if the mass is disengaged and the displaceable end is disengaged. A detonator on the rotor can be aligned with a detonation cord when the rotor is in the armed position and unaligned when the rotor is in the safe position.
    • 与抛射体一起使用的安全和布防装置包括可在安全位置和武装位置之间枢转的转子。 偏置元件保持与转子接合的质量,以阻止转子旋转并且可变形以允许质量响应于弹丸上的挫折力而从转子移位和脱离。 第二偏置元件包括可移动端,用于与转子接合以约束转子不旋转,并且可变形以响应于弹丸旋转使可移位端与转子脱离。 如果质量分离并且可移动端被分离,活塞致动器可以将转子旋转到布置位置。 当转子处于备用位置时,转子上的雷管可与引爆线对准,当转子处于安全位置时,雷管不对准。