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    Broadband polarizing screen with one or more radiofrequency polarizing cells
    5.
    发明授权
    Broadband polarizing screen with one or more radiofrequency polarizing cells 有权

    公开(公告)号：US11171396B2

    公开(公告)日：2021-11-09

    申请号：US16849941

    申请日：2020-04-15

    申请人： THALES ,  INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES

    发明人： Hervé Legay ,  Carlos Molero Jimenez ,  Maria Garcia Vigueras

    IPC分类号： H01P1/165 ,  H01Q15/24 ,  H01P1/17 ,  H01P3/12 ,  H01P3/123

    摘要： A polarizing screen includes an arrangement of at least one, electrically conductive, polarizing cell, which at least one cell is frequency- and polarization-selective, for transforming the polarization of the electric component E of the transverse electromagnetic (TEM) wave, received with linear polarization, into an electromagnetic wave with circular polarization. The four lateral walls of each section of waveguide forming a polarizing cell are each open over their entire length due to a median continuous slot, parallel to the direction of propagation of the incident electromagnetic wave, so as to form four angled electrically conductive plates. Each polarizing cell includes electrically conductive interconnection rods which interconnect the lateral walls and the four angled plates so that they are partially or completely rigidly connected and which form one or more electrical discontinuities, which are arranged at the ends of or inside the section of waveguide forming the polarizing cell and form one or more inductive or capacitive loads, or one or more (LC) resonators equivalent to an inductor and a capacitor connected in parallel or in series. The longitudinally open slots of the lateral walls and the elementary electrical discontinuities of each polarizing cell include geometric shapes and dimensions which provide total transmission of the incident wave, which is associated with a phase anisotropy of +90° or −90° according to the components EV and EH.

    BROADBAND POLARIZING SCREEN WITH ONE OR MORE RADIOFREQUENCY POLARIZING CELLS
    7.
    发明申请
    BROADBAND POLARIZING SCREEN WITH ONE OR MORE RADIOFREQUENCY POLARIZING CELLS 审中-公开

    公开(公告)号：US20200335842A1

    公开(公告)日：2020-10-22

    申请号：US16849941

    申请日：2020-04-15

    申请人： THALES ,  INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES

    发明人： Hervé LEGAY ,  Carlos MOLERO JIMENEZ ,  Maria GARCIA VIGUERAS

    IPC分类号： H01P1/165 ,  H01Q15/24

    摘要： A polarizing screen includes an arrangement of at least one, electrically conductive, polarizing cell, which at least one cell is frequency- and polarization-selective, for transforming the polarization of the electric component E of the transverse electromagnetic (TEM) wave, received with linear polarization, into an electromagnetic wave with circular polarization. The four lateral walls of each section of waveguide forming a polarizing cell are each open over their entire length due to a median continuous slot, parallel to the direction of propagation of the incident electromagnetic wave, so as to form four angled electrically conductive plates. Each polarizing cell includes electrically conductive interconnection rods which interconnect the lateral walls and the four angled plates so that they are partially or completely rigidly connected and which form one or more electrical discontinuities, which are arranged at the ends of or inside the section of waveguide forming the polarizing cell and form one or more inductive or capacitive loads, or one or more (LC) resonators equivalent to an inductor and a capacitor connected in parallel or in series. The longitudinally open slots of the lateral walls and the elementary electrical discontinuities of each polarizing cell include geometric shapes and dimensions which provide total transmission of the incident wave, which is associated with a phase anisotropy of +90° or −90° according to the components EV and EH.

    METHOD FOR MANUFACTURING A TITANIUM ALLOY FOR BIOMEDICAL DEVICES
    10.
    发明申请
    METHOD FOR MANUFACTURING A TITANIUM ALLOY FOR BIOMEDICAL DEVICES 有权
    制造用于生物医学装置的钛合金的方法

    公开(公告)号：US20140338795A1

    公开(公告)日：2014-11-20

    申请号：US14357559

    申请日：2012-11-07

    申请人： INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES ,  CENTRE NATIONAL DE LA RESCHERCHE SCIENTIFIQUE

    发明人： Thierry Gloriant ,  Doina Gordin

    IPC分类号： C22F1/18 ,  C22C14/00 ,  C23C8/28 ,  C23C8/24 ,  C23C8/30

    CPC分类号： C22F1/183 ,  A61C2201/007 ,  A61L27/06 ,  A61L29/02 ,  A61L31/022 ,  A61L2400/16 ,  C21D2201/01 ,  C21D2201/02 ,  C22C1/02 ,  C22C14/00 ,  C23C8/24 ,  C23C8/28 ,  C23C8/30 ,  F04C2270/0421

    摘要： The invention relates to a method for manufacturing a titanium alloy having superelastic properties and/or shape memory for biomedical use, which comprises the steps of: preparing an ingot by melting the various metals that form the desired alloy in a vacuum; optionally homogenizing the ingot in a vacuum by high-temperature annealing (higher than 900° C.); first quenching; mechanical shaping (rolling, drawing, machining or the like); heat treatment for redissolution in beta phase beyond the beta transus temperature (until a second temperature and then maintaining same for a certain time); and second quenching; characterized in that said heat treatment phase is carried out in a gaseous atmosphere and also constitutes a surface treatment suitable for forming on the surface a layer of nitride, carbonitride, oxide, oxynitride or the like.

    摘要翻译： 本发明涉及一种用于制造具有用于生物医学应用的超弹性和/或形状记忆的钛合金的方法，其包括以下步骤：通过在真空中熔化形成所需合金的各种金属来制备锭; 任选地通过高温退火（高于900℃）在真空中均化锭; 先淬火; 机械成型（轧制，拉丝，加工等）​​; 在β相中再溶解的热处理超过β转换温度（直到第二温度，然后在一定时间内保持相同）; 和二次淬火; 其特征在于，所述热处理阶段在气态气氛中进行，并且还构成适于在表面上形成氮化物，碳氮化物，氧化物，氧氮化物等层的表面处理。