Switching circuit with improved signal blocking effect in off mode
    134.
    发明授权
    Switching circuit with improved signal blocking effect in off mode 失效
    开关电路在关断模式下具有改善的信号阻塞效应

    公开(公告)号:US06800935B2

    公开(公告)日:2004-10-05

    申请号:US10256692

    申请日:2002-09-27

    Inventor: Toshiharu Yoneda

    Abstract: A switching circuit includes an insulating substrate including two signal transmission lines; a switching diode mounted, in series between the two signal transmission lines, on the insulating substrate, wherein an anode terminal and a cathode terminal are connected to the two signal transmission lines, and the switching diode is turned on or off; and a conductive pattern formed, below the switching diode, on a mounting face of the insulating substrate on which the switching diode is mounted, wherein the conductive pattern is grounded. There are stray capacitances between the anode terminal and the conductive pattern and between the cathode terminal and the conductive pattern.

    Abstract translation: 开关电路包括:绝缘基板,包括两条信号传输线; 串联在两个信号传输线之间的绝缘基板上的开关二极管,其中阳极端子和阴极端子连接到两个信号传输线,并且开关二极管导通或关断; 以及在开关二极管的下方形成在其上安装有开关二极管的绝缘基板的安装面上的导电图案,其中导电图案接地。 在阳极端子和导电图案之间以及阴极端子和导电图案之间存在杂散电容。

    Filter arrangement
    136.
    发明授权
    Filter arrangement 有权
    过滤器布置

    公开(公告)号:US06650203B2

    公开(公告)日:2003-11-18

    申请号:US09812433

    申请日:2001-03-20

    Abstract: The invention relates to a filter arrangement for separating radio frequency energy from signal energy in a signal line. The signal line extends at least partly in a first layer of a multi-layer printed circuit board. A grounded surface is arranged in a second layer of the printed circuit board. The signal line to be filtered is interrupted in the first layer in the filter region and continued in a third layer, the second and the third layers being located on opposite sides of the first layer. Due to the skin effect the radio frequency energy will be concentrated on the side of the signal line facing the grounded surface. The side of the signal line remote from the grounded surface is then to a large extent decoupled from radio frequency energy, such that the actual signal path can be continued without being disturbed by radio frequency energy.

    Abstract translation: 本发明涉及一种用于将射频能量与信号线中的信号能分离的滤波器装置。 信号线至少部分地延伸到多层印刷电路板的第一层中。 接地表面布置在印刷电路板的第二层中。 要滤波的信号线在滤波器区域的第一层中断,并在第三层中继续,第二和第三层位于第一层的相对侧。 由于皮肤效应,射频能量将集中在面向接地表面的信号线的一侧。 远离接地表面的信号线的一侧在很大程度上与射频能量解耦,使得实际的信号路径可以继续而不受射频能量的干扰。

    Method of producing a multilayer wiring board
    138.
    发明授权
    Method of producing a multilayer wiring board 有权
    多层布线板的制造方法

    公开(公告)号:US06629366B1

    公开(公告)日:2003-10-07

    申请号:US09548605

    申请日:2000-04-13

    Abstract: A multilayer wiring board having a core substrate and wiring line patterns formed on both faces of the core substrate, the core substrate having conducting members piercing through the core substrate, and members of the wiring line patterns on both faces of the core substrate being connected with each other through the conducting member piercing through the core substrate, wherein the core substrate comprises via columns and conductive structural members, which are formed by plating, and an insulating structural member, which electrically insulates the individual via columns and conductive structural members from each other, the via column piercing through the core substrate and serving as the conducting member for connecting the members of the wiring line patterns on both faces of the core substrate with each other. A method of producing such a multilayer wiring board is also disclosed.

    Abstract translation: 一种多芯线基板,其具有在芯基板的两面上形成的芯基板和布线图案,芯基板具有贯穿芯基板的导电部件,芯基板的两面的布线图案的部件与 彼此通过导电构件穿过芯基板,其中芯基板包括通过电镀形成的通孔列和导电结构构件,以及绝缘结构构件,其将各个通孔列和导电结构构件彼此电绝缘 所述通孔柱穿过所述芯基板并且用作用于将所述芯基板的两个面上的布线图案的构件彼此连接的导电构件。 还公开了一种制造这种多层布线板的方法。

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