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    • 4. 发明申请
    • DUAL MODE FILTER BASED ON SMOOTHED CONTOUR RESONATORS
    • 基于平滑轮廓谐振器的双模滤波器
    • WO2005041345A1
    • 2005-05-06
    • PCT/EP2003/010825
    • 2003-09-30
    • TELECOM ITALIA S.P.A.PIRELLI & C. S.P.A.ACCATINO, LucianoBERTIN, Giorgio
    • ACCATINO, LucianoBERTIN, Giorgio
    • H01P1/203
    • H01P1/20381
    • A planar filter comprising a planar resonator (1, 20) including a conductive region (2, 21) having smoothed contours and supporting a first resonating mode propagating along a first conductive path (3) and a second resonating mode propagating along a second conductive path (4), perpendicular to the first conductive path. The planar filter also comprises a conductor-free region (5) made in the conductive region (2, 21) and having smoothed contours. The conductor-free region (5) is disposed along a region axis (6) forming an angle θ with respect to the first conductive path (3). The conductor-free region (5) causes a perturbation of the symmetry of the planar resonator (1, 20) resulting in a frequency shift of the first and the second resonating mode and their mutual coupling.
    • 一种平面滤波器,包括平面谐振器(1,20),其包括具有平滑轮廓的导电区域(2,21),并且支撑沿着第一导电路径(3)传播的第一谐振模式和沿着第二导电路径传播的第二谐振模式 (4),垂直于第一导电路径。 平面滤波器还包括在导电区域(2,21)中制成并具有平滑轮廓的无导体区域(5)。 无导体区域(5)沿着相对于第一导电路径(3)形成角度θ的区域轴线(6)设置。 无导体区域(5)引起平面谐振器(1,20)的对称性的扰动,导致第一和第二谐振模式及其相互耦合的频移。