公开(公告)号：US20050219125A1

公开(公告)日：2005-10-06

申请号：US10517706

申请日：2003-06-13

申请人： Michel Charrier ,  Thierry Dean ,  Afshin Ziaei ,  Herve Legay ,  Beatrice Pinte ,  Raphael Gillard ,  Etienne Girard ,  Ronan Moulinet

发明人： Michel Charrier ,  Thierry Dean ,  Afshin Ziaei ,  Herve Legay ,  Beatrice Pinte ,  Raphael Gillard ,  Etienne Girard ,  Ronan Moulinet

IPC分类号： H01Q3/46 ,  H01Q9/06 ,  H01Q21/06 ,  H01Q1/38

CPC分类号： H01Q3/46 ,  H01Q9/065 ,  H01Q21/062

摘要： The invention relates to phase-shifting cells constituting the passive reflectarrays of antennas with a reconfigurable transmission direction, transmitting in the microwave range. More particularly, the invention describes, within the context of phase-shifting cells of the type having dipole strands angularly distributed in a star configuration, a novel type of switch consisting of a microelectromechanical device essentially comprising a suspended micromembrane which, under the action of an electrostatic force caused by a control voltage, deforms sufficiently to ensure electrical connection between the strands, making it possible to form a dipole in the desired orientation. In one particular embodiment, the micromembrane can be likened to one of the plates of a capacitor and its deformation corresponds to a substantial increase in the capacitance of this capacitor, thus providing the electrical connection. This switch technology has the advantages of greater fabrication simplicity and of enhanced performance compared with the known technologies. The invention provides the main geometrical and technological characteristics for obtaining optimized performance.

摘要翻译： 本发明涉及在微波范围内传输构成天线的无源反射阵列的移相电池，具有可重新配置的传输方向。 更具体地说，本发明描述了在具有以星形结构成角度分布的偶极子线圈的类型的相移单元的上下文中，新型开关由基本上包含悬浮微膜的微机电装置组成，该微机电装置在 由控制电压引起的静电力足够变形以确保线之间的电连接，使得可以以期望的方向形成偶极子。 在一个具体实施例中，微膜可以被比作电容器的一个板，并且其变形对应于该电容器的电容的显着增加，从而提供电连接。 与已知技术相比，该开关技术具有更大的制造简单性和更高性能的优点。 本发明提供了获得优化性能的主要几何和技术特性。