Ridged Waveguide Flared Radiator Array Using Electromagnetic Bandgap Material
    3.
    发明申请
    Ridged Waveguide Flared Radiator Array Using Electromagnetic Bandgap Material 有权
    使用电磁带隙材料的Ridged Waveguide Flared散热器阵列

    公开(公告)号:US20130241791A1

    公开(公告)日:2013-09-19

    申请号:US13457547

    申请日:2012-04-27

    IPC分类号: H01Q1/48

    摘要: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS) with an electromagnetic bandgap (EBG) ground plane surrounding the ridged waveguide transition. The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the intrinsic impedance of the surrounding medium. The EBG, which may be comprised of a photonic bandgap material or other metamaterial, allows for better frequency and bandwidth performance in a lower-profile array package, thereby reducing size and weight of the array for applications requiring small size and or low-inertia packaging. In alternate embodiments, radiating elements other than Vivaldi radiators may be used. This configuration also reduces the complexity of the manufacturing process, which in turn lowers cost.

    摘要翻译: 目前公开的是一种天线系统,其具有通过具有围绕脊状波导转变的电磁带隙(EBG)接地平面的悬挂空气带状线(SAS)的公司网络馈送的脊状波导Vivaldi辐射器(RWVR)天线元件的阵列。 SAS通过脊状波导耦合器将电磁能传递到辐射元件。 Vivaldi散热器将脊状波导耦合器/ SAS的输出阻抗与周围介质的固有阻抗匹配。 可以由光子带隙材料或其他超材料组成的EBG允许在较小轮廓阵列封装中具有更好的频率和带宽性能,从而减少阵列的尺寸和重量,以满足需要小尺寸和/或低惯量封装的应用 。 在替代实施例中,可以使用除Vivaldi散热器之外的辐射元件。 这种配置还降低了制造过程的复杂性,这又降低了成本。

    Ridged Waveguide Flared Radiator Antenna
    4.
    发明申请
    Ridged Waveguide Flared Radiator Antenna 有权
    Ridged波导喇叭辐射天线

    公开(公告)号:US20130241788A1

    公开(公告)日:2013-09-19

    申请号:US13457546

    申请日:2012-04-27

    摘要: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS). The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the impedance of the surrounding medium. Because the coupling method and the radiating elements are wideband mediums, this antenna array is capable of wideband operation. The physical dimensions of the resulting array are also not as sensitive to its electrical performance as other antenna designs since the bandwidth is quite large, reducing the occurrence of an out-of-specification antenna due to manufacturing tolerance build-up. This also reduces the complexity of the manufacturing process, which in turn lowers cost.

    摘要翻译: 现在公开的是一种天线系统,其具有通过悬挂式空气带状线(SAS)的公司网络馈送的脊状波导Vivaldi辐射器(RWVR)天线元件的阵列。 SAS通过脊状波导耦合器将电磁能传递到辐射元件。 Vivaldi散热器将脊波导耦合器/ SAS的输出阻抗与周围介质的阻抗匹配。 因为耦合方法和辐射元件是宽带介质,所以该天线阵列能够​​进行宽带操作。 由于带宽相当大,所产生的阵列的物理尺寸对其电气性能也不如其他天线设计那么敏感,从而减少由于制造公差的增加导致的超出规格天线的发生。 这也降低了制造过程的复杂性,从而降低了成本。

    Rope climbing exercise apparatus
    7.
    发明申请

    公开(公告)号:US20100081550A1

    公开(公告)日:2010-04-01

    申请号:US12286432

    申请日:2008-09-30

    IPC分类号: A63B7/04

    摘要: A rope climbing apparatus (15) comprising a frame (16), a seat (18) supported by the frame and adapted to move relative to the frame from a first position (19) to an elevated second position (20), a lower pulley assembly (21) connected to the seat, an upper pulley assembly (22) connected to the frame, a rope (23) extending between the lower pulley assembly and the upper pulley assembly and having a rope climbing portion (24) graspable by a user (25) when the user is seated on the seat, and the rope, the seat, the lower pulley assembly and the upper pulley assembly configured and arranged such that a downward force (26) on the rope climbing portion of the rope causes an upward force (28) on the seat. The downward force on the rope climbing portion may result in an upward force on the seat at a mechanical advantage provided by the lower pulley assembly and the upper pulley assembly, and the mechanical advantage may be four. The rope may comprise a first end portion (29) connected to the seat and the rope climbing portion may comprise a second end portion (30) terminating within grasp of the user when the user is seated on the seat. The first end portion of the rope may be connected to the seat via the lower pulley assembly, such that the first end portion of the rope is connected directly to the lower pulley assembly.

    Dual-polarization common aperture antenna with rectangular wave-guide fed centered longitudinal slot array and micro-stripline fed air cavity back transverse series slot array
    8.
    发明授权
    Dual-polarization common aperture antenna with rectangular wave-guide fed centered longitudinal slot array and micro-stripline fed air cavity back transverse series slot array 有权
    双极化普通孔径天线,矩形波导引导中心纵向槽阵列和微带线馈送空气腔后横向串联阵列

    公开(公告)号:US06731241B2

    公开(公告)日:2004-05-04

    申请号:US09880423

    申请日:2001-06-13

    IPC分类号: H01Q1310

    摘要: A dual-polarization common aperture antenna having fully populated common aperture dual polarized arrays. The inventive antenna includes a first and second arrays of radiating slots disposed in a faceplate. The second array is generally orthogonal and therefor cross-polarized relative to the first array. The first array is waveguide fed and the second array is stripline fed. In the illustrative implementation, the first array and the second array share a common aperture. The common aperture is fully populated and each array uses the aperture in its entirety. The first and second arrays of slots are arranged for four-way symmetry. Each slot in the first array is a vertically oriented, iris-excited shunt slot fed by a rectangular waveguide and centered on a broad wall thereof. The second array is a standing wave array in which each slot is an air cavity backed slot fed by an inverted micro-stripline offset from a center thereof.

    摘要翻译: 具有完全填充的共同孔径双极化阵列的双极化公共孔径天线。 本发明的天线包括设置在面板中的第一和第二辐射槽阵列。 第二阵列通常是正交的并且相对于第一阵列交叉极化。 第一阵列是波导馈送的,第二阵列是带状线馈电的。 在说明性实现中,第一阵列和第二阵列共享公共孔径。 公共孔径完全填充,每个阵列全部使用孔径。 第一和第二槽阵列被布置成四通对称。 第一阵列中的每个槽是由矩形波导馈送并以其宽壁为中心的垂直取向的虹膜激发的分流槽。 第二阵列是驻波阵列,其中每个狭槽是由其中心偏移的反向微带线片馈送的空气腔支撑槽。

    Broadband/Multi-Band Horn Antenna With Compact Integrated Feed
    9.
    发明申请
    Broadband/Multi-Band Horn Antenna With Compact Integrated Feed 有权
    宽带/多频带喇叭天线,紧凑型集成馈电

    公开(公告)号:US20110050527A1

    公开(公告)日:2011-03-03

    申请号:US12552231

    申请日:2009-09-01

    IPC分类号: H01Q13/02

    摘要: A dual polarization multi-band antenna may include a waveguide horn, a low band feed section, a transition section, and a high band feed section coupled in series. The waveguide horn may be configured to support propagation of electromagnetic waves in a low band and a high band. The low band feed section may include horizontal and vertical feeds and may be configured to support propagation of electromagnetic waves in the low band and the high band. The high band feed section may include horizontal and vertical feeds and may be configured to support propagation of electromagnetic waves in the high band but not in the low band. The transition section may be configured to couple electromagnetic waves in the high band from the high band feed section to the low band feed section and to constructively reflect electromagnetic waves in the low band.

    摘要翻译: 双极化多频带天线可以包括串联耦合的波导喇叭,低频带馈电部分,过渡部分和高频带馈电部分。 波导喇叭可以被配置为支持电磁波在低频带和高频带中的传播。 低频带馈送部分可以包括水平和垂直馈送,并且可以被配置为支持低频带和高频带中的电磁波的传播。 高频带馈送部分可以包括水平和垂直馈送,并且可以被配置为支持高频带中的电磁波的传播,但不支持在低频带中。 过渡部分可以被配置为将高频带中的电磁波从高频带馈送部分耦合到低频带馈送部分,并且构造地反射低频带中的电磁波。

    Rope climbing exercise apparatus
    10.
    发明授权
    Rope climbing exercise apparatus 有权
    绳索攀爬运动器材

    公开(公告)号:US07789812B2

    公开(公告)日:2010-09-07

    申请号:US12286432

    申请日:2008-09-30

    IPC分类号: A63B21/00

    摘要: A rope climbing apparatus (15) comprising a frame (16), a seat (18) supported by the frame and adapted to move relative to the frame from a first position (19) to an elevated second position (20), a lower pulley assembly (21) connected to the seat, an upper pulley assembly (22) connected to the frame, a rope (23) extending between the lower pulley assembly and the upper pulley assembly and having a rope climbing portion (24) graspable by a user (25) when the user is seated on the seat, and the rope, the seat, the lower pulley assembly and the upper pulley assembly configured and arranged such that a downward force (26) on the rope climbing portion of the rope causes an upward force (28) on the seat. The downward force on the rope climbing portion may result in an upward force on the seat at a mechanical advantage provided by the lower pulley assembly and the upper pulley assembly, and the mechanical advantage may be four. The rope may comprise a first end portion (29) connected to the seat and the rope climbing portion may comprise a second end portion (30) terminating within grasp of the user when the user is seated on the seat. The first end portion of the rope may be connected to the seat via the lower pulley assembly, such that the first end portion of the rope is connected directly to the lower pulley assembly.

    摘要翻译: 一种攀爬装置(15),包括框架(16),由框架支撑并适于相对于框架从第一位置(19)移动到升高的第二位置(20)的座(18),下滑轮 连接到座椅的组件(21),连接到框架的上滑轮组件(22),在下滑轮组件和上滑轮组件之间延伸并具有可由用户抓握的绳索攀爬部分(24)的绳索(23) (25),当使用者坐在座椅上时,绳索,座椅,下滑轮组件和上皮带轮组件被构造和布置成使得绳索的爬绳部分上的向下的力(26)引起向上 力(28)在座位上。 在下滑轮组件和上皮带轮组件提供的机械优点上,绳索上升部分上的向下的力可导致座椅上的向上的力,并且机械优点可以是四个。 绳索可以包括连接到座椅的第一端部部分(29),并且绳索攀爬部分可以包括当使用者坐在座椅上时终止于使用者掌握的第二端部部分(30)。 绳索的第一端部可以经由下滑轮组件连接到座椅,使得绳索的第一端部部分直接连接到下滑轮组件。