ANTENNA WITH BUILT-IN FILTER
    1.
    发明公开
    ANTENNA WITH BUILT-IN FILTER 有权
    天线麻醉剂EINGEBAUTEM过滤器

    公开(公告)号:EP1548872A4

    公开(公告)日:2006-08-16

    申请号:EP03741160

    申请日:2003-07-03

    CPC分类号: H01Q23/00 H01Q1/38 H01Q9/0407

    摘要: Dielectric sheets (31) each having a conductor film on one side are so stacked as to constitute at least one filter (2), so that a multilayer dielectric block (3) is produced. A radiation element (1) is provided on the laminated dielectric block (3), and one electrode of the filter (2) is electrically connected to the radiation element (1). The other electrode of the filter (2) is led out to the mount face (B) (the face opposite to a circuit board to be mounted) of the multilayer dielectric block (3) through a via contact (33) and a wiring (34) so as not to be exposed on the side face, and connected to a feeding terminal electrode (4) provided on the mount face. As a result, an antenna with a built-in filter of the structure where even if it is mounted on a circuit board, interference between an electronic circuit on the circuit board and the feeding terminal electrode of the antenna is prevented to improve the isolation characteristic and transmission/reception characteristic.

    摘要翻译: 叠层电介质块(3)通过层压在其一个表面上形成有导电膜的电介质片(31)形成,以构成至少一个过滤器(2)。 辐射元件(1)被设置成固定到层压电介质块,其中滤波器的一个电极电连接到辐射元件。 滤波器的另一个电极(22)通过通孔接触(33)和布线(34)连接到提供的层叠介电块的安装面B(与电路板相对的面)的馈电端子电极(4) ),不会暴露在侧面。 结果,即使安装在电路板上的内置结构的滤波器的天线,也防止了电路板上的电子电路与天线的馈电端子电极之间的干扰,从而提高了隔离特性, 发送或接收特性。