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    • 6. 发明公开
    • Compact annular-slot antenna
    • Kompakte Ringschlitzantenne
    • EP1271693A1
    • 2003-01-02
    • EP02291435.2
    • 2002-06-11
    • Thomson Licensing S.A.
    • Le Bolzer, FrancoiseLouzir, M. Ali
    • H01Q13/10H01Q1/38
    • H01Q1/38H01Q13/10H01Q13/106
    • Planar antenna carried by a substrate comprising an annular slot, which is dimensioned to operate at a given frequency and which is fed via a line (2), such as a microstrip line, in a short-circuit plane of which the slot is situated.
      The annulus formed by this slot (1a), is deformed as indentations in at least one zone of the plane in which the electric field is a minimum for the given frequency and a given mode, this making it possible to obtain a lengthening of the slot perimeter with respect to an annular slot (1) of corresponding circular shape, without surface extension of the substrate zone wherein the slot is made.
    • 由包括环形槽的衬底承载的平面天线,其尺寸设计为以给定频率工作,并且经由线(2),例如微带线在狭槽所位于的短路平面中馈送。 由该槽(1a)形成的环形空间在给定频率和给定模式的电场最小的平面的至少一个区域中变形为凹陷,这使得可以获得槽的延长 相对于相应圆形形状的环形槽(1)的周边,而不形成其中所述槽的衬底区域的表面延伸。