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    • 23. 发明授权
    • Antennas
    • 天线
    • US08599072B2
    • 2013-12-03
    • US12136240
    • 2008-06-10
    • Christopher ReedSimon BatesGraham DolmanDavid AdamsWilliam WaddoupDean Kitchener
    • Christopher ReedSimon BatesGraham DolmanDavid AdamsWilliam WaddoupDean Kitchener
    • H01Q1/24
    • H01Q1/246
    • A broadband antenna structure has an electrically conductive enclosure with a closed end, over which a non-electrically conductive cover is placed. A radiating portion of an antenna feed layer comprising a conductive patch antenna element is placed in between the enclosure and the cover. The patch antenna element design is inherently broader band than that of conventional cavity-backed slot-radiating antennas, which are constrained in bandwidth by the need to keep the cavity formed in the enclosure small. The dielectric constant of the dielectric material of the cover reduces the required size of the conductive antenna element. The broadband antenna structure may be connected with an electronic device to form an antenna arrangement in which a portion of the antenna feed layer extends through an opening in a surface of an antenna housing, the portion being within an electronic device enclosure of the electronic device.
    • 宽带天线结构具有带有封闭端的导电外壳,在其上放置非导电盖。 包括导电贴片天线元件的天线馈电层的辐射部分放置在外壳和盖之间。 贴片天线元件设计固有地比传统的腔背隙隙辐射天线的宽带宽,这些天线元件通过需要将形成在外壳中的腔体保持在较小的范围内而受到带宽的约​​束。 盖的电介质材料的介电常数降低了导电天线元件所需的尺寸。 宽带天线结构可以与电子设备连接以形成天线布置,其中天线馈送层的一部分延伸穿过天线壳体的表面中的开口,该部分在电子设备的电子设备外壳内。
    • 25. 发明授权
    • Methods for geomechanical fracture modeling
    • 地质力学断裂模拟方法
    • US08126689B2
    • 2012-02-28
    • US10728295
    • 2003-12-04
    • Mohamed Y. SolimanLoyd E. East, Jr.David Adams
    • Mohamed Y. SolimanLoyd E. East, Jr.David Adams
    • G06G7/48
    • E21B49/006E21B43/26G01V99/005G01V2210/646
    • The present invention relates generally to methods for designing and optimizing the number, placement, and size of fractures in a subterranean formation and more particularly to methods that account for stress interference from other fractures when designing and optimizing the number, placement, and size of fractures in the subterranean formation. The present invention optimizes the number, placement and size of fractures in a subterranean formation. The present invention determines one or more geomechanical stresses induced by each fracture based on the dimensions and location of each fracture. The present invention determines a maximum number of fractures and a predicted stress field based on the geomechanical stresses induced by each of the fractures
    • 本发明一般涉及用于设计和优化地层中裂缝的数量,位置和尺寸的方法,更具体地涉及在设计和优化裂缝的数量,位置和尺寸时考虑来自其他裂缝的应力干扰的方法 在地层中。 本发明优化了地层中裂缝的数量,位置和尺寸。 本发明基于每个断裂的尺寸和位置确定由每个断裂引起的一个或多个地质力学应力。 本发明基于每个断裂引起的地质力学应力来确定最大裂缝数和预测应力场
    • 27. 发明申请
    • ANTENNAS
    • US20090303135A1
    • 2009-12-10
    • US12136240
    • 2008-06-10
    • Christopher ReedSimon BatesGraham DolmanDavid AdamsWilliam WaddoupDean Kitchener
    • Christopher ReedSimon BatesGraham DolmanDavid AdamsWilliam WaddoupDean Kitchener
    • H01Q1/24H01Q1/38
    • H01Q1/246
    • Embodiments of the invention relate to a broadband antenna structure and an antenna arrangement comprising the antenna structure and an electronic device. In one aspect, the antenna employs an electrically conductive enclosure with a closed end, over which a non-electrically conductive cover is placed. A radiating portion of the antenna feed layer comprising a conductive patch antenna element is placed in between the enclosure and the cover. This patch antenna element design is inherently broader band than that of conventional cavity-backed slot-radiating antennas, which are constrained in bandwidth by the need to keep the cavity formed in the enclosure small, so that the column elements may be arranged in an array at substantially half-wavelength spacing. The new design suffers less compromise in terms of bandwidth in achieving the same size constraint. This is achieved in part by the dielectric constant of the dielectric material of the cover reducing the required size of the conductive antenna element, compared to the size that would be required if the radiating portion were covered with a material with the dielectric constant of air. In another aspect, this broadband antenna structure is connected with an electronic device to form an antenna arrangement, wherein a portion of the antenna feed layer extends outside of the antenna housing through an opening in a surface of the antenna housing, said portion being within the electronic device enclosure of the electronic device. Connecting the electronic device directly to the antenna according to embodiments of the invention reduces the amount of coaxial cables needed or eliminates the need for coaxial cables completely. As a result the usual costs associated with coaxial cables, the RF losses introduced by the cables which can compromise the system performance, possible failure of the cables, lease costs for the space the cables occupy and lease costs for large footprint of the building or cabinet housing the electronic device are substantially reduced or eliminated.
    • 28. 发明授权
    • Antenna
    • 天线
    • US07355555B2
    • 2008-04-08
    • US11225520
    • 2005-09-13
    • Dean KitchenerAndrew UrquhartDavid Adams
    • Dean KitchenerAndrew UrquhartDavid Adams
    • H01Q13/10
    • H01Q13/18H01Q21/0037
    • An antenna array may be constructed using a plurality of tubes of electrically conducted material in conjunction with an additionally electrically conductive component which covers the front faces of tubes and at least part of the sides. Between the structures, a further electrically conductive material may be placed separated by dielectric material, and may be used to provide radiating elements and a feed structure by producing stripline structures. This structure is thereby able to reduce cavity back slots fed with triplate stripline along the sides of the tubes. This structure, particularly when made from plastics material, is low in complexity and cost and lightweight. These features overcome many of the disadvantages of the existing designs.
    • 可以使用多个导电材料管结合另外导电的部件来构造天线阵列,该附加导电部件覆盖管的前表面和至少部分侧面。 在结构之间,另外的导电材料可以被介电材料隔开,并且可以用于通过产生带状线结构来提供辐射元件和馈送结构。 因此,该结构能够沿着管的侧面减小沿着三板带状线供给的腔后槽。 这种结构,特别是当由塑料材料制成时,其复杂性和成本低,重量轻。 这些特征克服了现有设计的许多缺点。