Filter, insbesondere zur Filterung elektromagnetischer Störungen
    3.
    发明公开
    Filter, insbesondere zur Filterung elektromagnetischer Störungen 审中-公开
    过滤器,特别是用于电磁干扰的滤波

    公开(公告)号:EP2237649A3

    公开(公告)日:2012-10-31

    申请号:EP10003032.9

    申请日:2010-03-23

    发明人: Kiefer, Arno

    IPC分类号: H05K1/02 H03H1/00

    摘要: Beschrieben und dargestellt ist ein Filter, insbesondere zur Filterung von elektromagnetischen Störungen, mit einem Basiselement (2), mit mindestens einem elektrischen Filterbauelement (3, 4) und mit mindestens zwei Eingangs-Anschlusskontakten (5) und mindestens zwei Ausgangs-Anschlusskontakten (6) zum Anschluss der Leiter einer elektrischen Leitung, wobei die Eingangs-Anschlusskontakte (5) über auf dem Basiselement (2) angeordnete Leiterpfade (7) mit den Ausgangs-Anschlusskontakten (6) verbunden sind.
    Bei dem erfindungsgemäßen Filter ist eine einfache Konfiguration und eine flexible Anwendung dadurch sichergestellt, dass in jedem Leiterpfad (7) mindestens zwei Längskontakte (8) vorgesehen sind, über die ein Filterbauelement (3, 4) derart mit einem Leiterpfad (7) elektrisch verbindbar ist, dass die elektrische Verbindung des Leiterpfades (7) zwischen den beiden Längskontakten (8) über das Filterbauelement (3, 4) führt, und dass in den Leiterpfaden (7) jeweils mindestens ein Querkontakt (9) vorgesehen ist, so dass zwei Leiterpfade (7) über ein Filterbauelement (3, 4) elektrisch miteinander verbunden sind, wenn das Filterbauelement (3, 4) mit den Querkontakten (9) der beiden Leiterpfade (7) elektrisch verbunden ist.

    METHOD FOR OPTIMIZING HIGH FREQUENCY PERFORMANCE OF VIA STRUCTURES
    6.
    发明公开
    METHOD FOR OPTIMIZING HIGH FREQUENCY PERFORMANCE OF VIA STRUCTURES 审中-公开
    法在合理连续性结构的高频性能

    公开(公告)号:EP1625680A4

    公开(公告)日:2009-04-08

    申请号:EP03816274

    申请日:2003-03-06

    申请人: SANMINA SCI CORP

    摘要: A method for enhancing the high frequency signal integrity performance of a printed circuit board (PCB) (10) or backplane is provided. The method involves the use of S-parameters as the primary cost factors associated with an iterative process to optimize the physical dimensions and shape of a single or a collection of vias (12) within the PCB or backplane. Such process involves the representation of the via components as equivalent lumped series admittances and impedances, as well as, RLGC sub-circuits upon which basic circuit analysis is performed to optimize secondary characteristics, for example, the maximization of the sub-circuit's resistance and/or the minimization of the sub-circuit's capacitance. The iterative process involves the alteration of physical dimensions and the shape of the via components such that the secondary characteristics are optimized.

    A CIRCUIT THAT TAPS A DIFFERENTIAL SIGNAL
    7.
    发明授权
    A CIRCUIT THAT TAPS A DIFFERENTIAL SIGNAL 有权
    一个电路,具有差分信号水龙头

    公开(公告)号:EP1568099B1

    公开(公告)日:2008-04-16

    申请号:EP03781616.2

    申请日:2003-10-31

    申请人: Intel Corporation

    IPC分类号: H01P5/02 H01P5/18

    摘要: An apparatus that includes a first conducting strip having a narrowed width where the first conducting strip also acts as a first electrode for a first tapping capacitance. The first tapping capacitance has a second electrode that is: 1) parallel to the first conducting strip; and 2) closer to the first conducting strip than a second conducting strip. The second conducting strip is parallel to the first conducting strip and has a narrowed width where the second conducting strip also acts as a first electrode for a second tapping capacitance. The second tapping capacitance has a second electrode that is: 1) parallel to the second conducting strip; and 2) closer to the second conducting strip than the first conducting strip.

    APPARATUS AND METHOD FOR TUNING AN INTER-STAGE MATCHING NETWORK OF AN INTEGRATED MULTISTAGE AMPLIFIER
    10.
    发明公开
    APPARATUS AND METHOD FOR TUNING AN INTER-STAGE MATCHING NETWORK OF AN INTEGRATED MULTISTAGE AMPLIFIER 审中-公开
    装置和方法用于调谐匹配网络的集成多级放大器级之间

    公开(公告)号:EP1402629A2

    公开(公告)日:2004-03-31

    申请号:EP02766676.7

    申请日:2002-04-25

    发明人: LUO, Sifen

    IPC分类号: H03F3/195

    摘要: A tuning circuit (28) for compensating an inter-stage matching network (38) included in an integrated multistage radio frequency (RF) amplifier (22) includes one or more capacitors (30,32) connected in shunt between ground and a voltage supply to the amplifier (22). The capacitors (30,32) have values selected to effectively compensate the inductance from a pull-up inductor (42) included in the inter-stage matching network (38) to provide improved inter-stage matching when inductance and capacitance values of the inter-stage matching network deviate from their desired values due to parasitics and/or when other components, such as input-stage and output-stage transistors of the amplifiers deviate from their pre-fabrication simulation models.