Glass ceramic composition, glass ceramic sintered material and ceramic multilayer substrate
    131.
    发明申请
    Glass ceramic composition, glass ceramic sintered material and ceramic multilayer substrate 失效
    玻璃陶瓷组合物,玻璃陶瓷烧结材料和陶瓷多层基板

    公开(公告)号:US20030220185A1

    公开(公告)日:2003-11-27

    申请号:US10442153

    申请日:2003-05-21

    Inventor: Sadaaki Sakamoto

    Abstract: A glass ceramic composition which can be fired at a low temperature and which has a high dielectric constant, a relatively small thermal expansion coefficient and a small temperature coefficient of dielectric constant is provided. The glass ceramic composition contains about 5% to 75% by weight of TiO2 powder, about 5% to 75% by weight of CaTiSiO5 powder and about 15% to 50% by weight of glass powder.

    Abstract translation: 提供了可以在低温下烧制并具有高介电常数,相对较小的热膨胀系数和较小的介电常数温度系数的玻璃陶瓷组合物。 玻璃陶瓷组合物含有约5%至75%重量的TiO 2粉末,约5%至75%重量的CaTiSiO 5粉末和约15%至50%重量的玻璃粉末。

    Filter arrangement
    132.
    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。

    Layout for noise reduction on a printed circuit board and connectors using it
    135.
    发明申请
    Layout for noise reduction on a printed circuit board and connectors using it 审中-公开
    印刷电路板上的降噪布局和使用它的连接器

    公开(公告)号:US20030150643A1

    公开(公告)日:2003-08-14

    申请号:US10075356

    申请日:2002-02-13

    Abstract: A printed circuit board (1) includes a plane substrate (10) having several insulated layers (11, 12, 13) used to dispose with conductive material. A row of footprints (2) used to connect to other electrical devices is disposed on an outer insulated layer (11) of the printed circuit board (1). These footprints (2) are paired and each is connected to a medial trace (5) formed on one of the intermediate layers (12) by a metalized hole (14). And the medial traces (C1, C1null) respectively connected to footprints (2) of the same pair (T1, R1) are formed on different intermediate layers (12) and aligned with each other for a predetermined distance. At least two traces (C3, C3null) connected to the chosen pair (T3, R3) are detoured to pass through a corresponding area aligned with the footprints (2) of their adjacent pair (T2, R2) mounted on the upper face (11) and are formed a corresponding footprint (R3null, T3null) over there respectively, so that the corresponding footprint (R3null, T3null) can be coupled with the footprints (T3, R3) to improve the noised signals received by the chosen pair (T3, R3) and its adjacent pair (T2, R2).

    Abstract translation: 印刷电路板(1)包括具有用于与导电材料配置的几个绝缘层(11,12,13)的平面基板(10)。 在印刷电路板(1)的外绝缘层(11)上设置用于连接到其它电气设备的一排脚印(2)。 这些脚印(2)成对,并且每个通过金属化孔(14)连接到形成在中间层(12)之一上的中间迹线(5)。 并且分别连接到同一对(T1,R1)的脚印(2)的中间迹线(C1,C1')形成在不同的中间层(12)上并且彼此对准预定距离。 连接到所选择的对(T3,R3)的至少两条迹线(C3,C3')被绕开以通过与安装在上表面上的相邻对(T2,R2)的脚印(2)对准的对应区域 11),并在其上分别形成对应的占空比(R3',T3'),使得相应的占空比(R3',T3')可与脚印(T3,R3)耦合,以改善由 选择对(T3,R3)及其相邻对(T2,R2)。

    Dielectric loss compensation methods and apparatus
    136.
    发明申请
    Dielectric loss compensation methods and apparatus 失效
    介质损耗补偿方法和装置

    公开(公告)号:US20030141942A1

    公开(公告)日:2003-07-31

    申请号:US10352310

    申请日:2003-01-27

    Abstract: Multilayer circuit boards include compensator networks configured in one or more conductor layers. A signal trace is configured in one or more layers to transmit an electrical signal from an input to an output and the compensator network is situated at at least one location on the trace to provide compensation for frequency dependent signal propagation losses or distortions such as those due to dielectric loss. In one example, the compensator includes a high frequency path provided by a series capacitance formed by conductor layers that include interleaved digits. Transmitters that include such compensators provide predistorted signals that can be matched or otherwise associated with anticipated propagation losses and distortions. Methods of evaluating dielectric losses include propagating electrical signals through such compensators and along a trace defined with respect to a dielectric under test and determining an associated compensation.

    Abstract translation: 多层电路板包括配置在一个或多个导体层中的补偿网络。 信号迹线被配置在一个或多个层中以将电信号从输入传输到输出,并且补偿器网络位于迹线上的至少一个位置处,以提供与频率相关的信号传播损耗或失真的补偿, 到介电损耗。 在一个示例中,补偿器包括由包括交错数字的导体层形成的串联电容提供的高频路径。 包括这种补偿器的发射机提供可以与预期传播损耗和失真相匹配或以其他方式相关联的预失真信号。 评估介质损耗的方法包括通过这种补偿器传播电信号,并沿着相对于被测电介质定义的迹线,并确定相关的补偿。

    Wiring board having parallel transmission lines to transmit equivalent signals in parallel
    137.
    发明授权
    Wiring board having parallel transmission lines to transmit equivalent signals in parallel 失效
    具有并行传输线的接线板并行传输等效信号

    公开(公告)号:US06566975B2

    公开(公告)日:2003-05-20

    申请号:US09939684

    申请日:2001-08-28

    Applicant: Junichi Kudo

    Inventor: Junichi Kudo

    Abstract: A wiring board includes a signal transmission circuit designed as a distributed constant circuit. The signal transmission circuit includes a first transmission line connecting a first electric component and a second electric component, and a second transmission line connecting the second electric component to a terminator resistor of the distributed constant circuit. At least the first transmission line includes a plurality of signal lines arranged in parallel, which transmit a signal in parallel.

    Abstract translation: 布线板包括设计成分布常数电路的信号传输电路。 信号传输电路包括连接第一电气部件和第二电气部件的第一传输线以及将第二电气部件连接到分布式恒定电路的终端电阻器的第二传输线。 至少第一传输线包括并行布置的多条信号线,并行传输信号。

    Simultaneous switching noise minimization technique for power lines using dual layer power line mutual inductors
    140.
    发明申请
    Simultaneous switching noise minimization technique for power lines using dual layer power line mutual inductors 审中-公开
    使用双层电力线互感器的电力线同时开关噪声最小化技术

    公开(公告)号:US20030011424A1

    公开(公告)日:2003-01-16

    申请号:US09980136

    申请日:2002-02-27

    Abstract: The object of this invention is to minimize a simultaneous switching noise of the mutual inductor on PCB and a noise generated by large buffers' simultaneous switching. An instant large current in the power line is half-divided flowing through two different but closely coupled layers in opposite directions. This configuration is effective to minimize the simultaneous switching noise. This mutual inductance between two power layers enables us to significantly minimize the switching noise.

    Abstract translation: 本发明的目的是最小化PCB上的互感器的同时开关噪声以及由大的缓冲器的同时切换产生的噪声。 电力线中的瞬时大电流在相反方向上分流流过两个不同但紧密耦合的层。 该配置有效地最小化同时开关噪声。 两个电源层之间的这种互感使我们能够显着降低开关噪声。

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