Ultra-high-frequency notch filter having an inductance set by selecting a conductor width
    1.
    发明授权
    Ultra-high-frequency notch filter having an inductance set by selecting a conductor width 失效
    具有通过选择导体宽度设定的电感的超高频陷波滤波器

    公开(公告)号:US07427904B2

    公开(公告)日:2008-09-23

    申请号:US10661137

    申请日:2003-09-12

    IPC分类号: H03H7/12

    摘要: An ultra-high-frequency notch filter (100) comprises a capacitor (102) defining a conductive trace (106) on its body (103) and extending between its terminals (104). The trace has an inductance that forms a parallel LC circuit with the capacitance of the capacitor. When mounted on a printed circuit board (120) to connect two segments of a signal line (124), the notch filter and a ground plane (122) of the PCB form a virtual conductive loop having an inductance and a capacitance whose product is the center frequency of the notch of the notch filter. The center frequency is tuned by varying the width of the trace.

    摘要翻译: 超高频陷波滤波器(100)包括在其主体(103)上限定导电迹线(106)并在其端子(104)之间延伸的电容器(102)。 该迹线具有与电容器的电容形成并联LC电路的电感。 当安装在印刷电路板(120)上以连接信号线(124)的两个部分时,陷波滤波器和PCB的接地平面(122)形成具有电感和电容的虚拟导电回路,该电感和电容的乘积为 陷波滤波器的陷波中心频率。 通过改变轨迹的宽度来调节中心频率。

    Self-adhering electromagnetic interference door seal
    2.
    发明授权
    Self-adhering electromagnetic interference door seal 失效
    自粘电磁干扰门密封

    公开(公告)号:US06429370B1

    公开(公告)日:2002-08-06

    申请号:US09651708

    申请日:2000-08-31

    IPC分类号: H05K900

    CPC分类号: H05K9/0015

    摘要: Using a new compound to produce a magnetic tape having low electrical resistivity and high magnetic absorptivity. The magnetic tape self-adheres around a cabinet door opening such that when a cabinet door is closed, the magnetic tape provides an EMI seal with low electrical resistivity and high magnetic absorptivity. In addition, the magnetic tape electrically connects the door to the cabinet. To achieve greater EMI shielding, separate magnetic tape pieces can be positioned on both the cabinet and cabinet door. The compound is of a magnetically lossy Manganese-Zinc (soft ferrite material) having a complex permeability plus cobalt, nickel, or iron (ferromagnetic materials). The Manganese-Zinc material may be Product 3S1, 3S4, 3C11, 3E25 or 3E27 manufactured by the Phillips Corporation of The Netherlands which is readily commercially available.

    摘要翻译: 使用新的化合物生产具有低电阻率和高磁吸收率的磁带。 磁带自动粘附在柜门开口周围,使得当柜门关闭时,磁带提供具有低电阻率和高磁吸收率的EMI密封。 此外,磁带将门电连接到机柜。 为了实现更大的EMI屏蔽,分离的磁带片可以位于机柜和机柜门两侧。 该化合物是具有复合磁导率的钴,镍或铁(铁磁材料)的磁性有损耗的锰 - 锌(软铁氧体材料)。 锰锌材料可以是由荷兰菲利普斯公司制造的商品3S1,3S4,3C11,3E25或3E27,其容易商业购买。

    Shield for high frequency telecommunications connector
    3.
    发明授权
    Shield for high frequency telecommunications connector 有权
    屏蔽高频电信连接器

    公开(公告)号:US06997747B1

    公开(公告)日:2006-02-14

    申请号:US10713639

    申请日:2003-11-13

    IPC分类号: H01R13/648

    摘要: An effective high frequency shielded telecommunication connector system is provided. In particular, a connector shield for covering an access aperture in a shielded enclosure is provided. The connector shield is formed from an electrically conductive material, and provides one or more cable apertures to permit one or more cables to exit the interior of a shielded enclosure. The maximum linear dimensions of any one cable aperture is limited, to eliminate or attenuate the leakage of electromagnetic radiation from an interior of the shielded enclosure. Mounting elements are provided to interconnect the connector shield to the template of the shielded cabinet, and to prevent gaps between the access aperture and its connector shield.

    摘要翻译: 提供了一种有效的高频屏蔽电信连接器系统。 特别地,提供了用于覆盖屏蔽外壳中的访问孔的连接器屏蔽。 连接器屏蔽由导电材料形成,并且提供一个或多个电缆孔,以允许一个或多个电缆离开屏蔽外壳的内部。 任何一个电缆孔径的最大线性尺寸受到限制,以消除或减弱来自屏蔽外壳内部的电磁辐射的泄漏。 提供安装元件以将连接器屏蔽件与屏蔽柜的模板相互连接,并且防止接入孔及其连接器屏蔽之间的间隙。

    Cabinet gasket providing panel adhesion and electromagnetic interference shielding
    4.
    发明授权
    Cabinet gasket providing panel adhesion and electromagnetic interference shielding 失效
    机柜垫片提供面板附着力和电磁干扰屏蔽

    公开(公告)号:US06720494B1

    公开(公告)日:2004-04-13

    申请号:US10272240

    申请日:2002-10-15

    IPC分类号: H05K900

    CPC分类号: H05K9/0015 Y10S439/927

    摘要: An electromagnetic gasket (110) combines a compressible substrate (300, 504/504′, 804) carrying a conductive material (302, 502, 802) and a hook-and-loop fastener (114/304, 400/504/504′, 804) to provide both the mechanical function of removably mounting a door (102) on a cabinet (100) and the electromagnetic function of shielding against EMI emissions even if the door becomes warped.

    摘要翻译: 电磁垫圈(110)将承载导电材料(302,502,802)的可压缩衬底(300,504',504')和钩环紧固件(114 / 304,400 / 504/504' ,804)以提供将门(102)可移除地安装在机壳(100)上的机械功能以及即使门变形时也防止EMI发射的电磁功能。

    Electromagnetic compatibility sleeve for electrical interconnections
    5.
    发明授权
    Electromagnetic compatibility sleeve for electrical interconnections 有权
    用于电气互连的电磁兼容套管

    公开(公告)号:US06380482B1

    公开(公告)日:2002-04-30

    申请号:US09651707

    申请日:2000-08-31

    IPC分类号: H05K900

    CPC分类号: H05K9/0043

    摘要: Using an adjustable sleeve that provides electromagnetic interference (EMI) shielding, is lightweight, and is adjustable in its length. The electromagnetic compatibility sleeve is formed by attaching electromagnetic foil shields on one or both sides of an insulating material that is accordion-in-structure in a first embodiment so that its length is flexible. The insulating material can be a very high resistivity and magnetically lossy ferrite material to prevent eddy currents on the inner surface from causing magnetic fields within the insulating material In a second embodiment, the sleeve is made up of telescoping sections so that the length is flexible. This flexible sleeve is attached to systems by the utilization of a mounting bracket, one for each system. The electromagnetic sleeve confines the radiation from a printed circuit extender to within the sleeve and prevents radiation from exiting the systems through enclosure openings by the utilization of the mounting brackets.

    摘要翻译: 使用提供电磁干扰(EMI)屏蔽的可调式套筒,重量轻,可长度可调。 电磁兼容套筒是通过在第一实施例中将手电筒结构的绝缘材料的一侧或两侧上安装电磁箔屏蔽形成的,以使其长度是柔性的。 绝缘材料可以是非常高的电阻率和磁损耗的铁氧体材料,以防止内表面上的涡流引起绝缘材料内的磁场。在第二实施例中,套筒由伸缩部分构成,使得该长度是柔性的。 该柔性套筒通过使用安装支架连接到系统,每个系统一个。 电磁套管将来自印刷电路延伸器的辐射限制在套筒内,并通过利用安装支架防止辐射通过外壳开口离开系统。

    Universal snap-fit spacer
    6.
    发明授权
    Universal snap-fit spacer 有权
    通用卡扣式垫片

    公开(公告)号:US06901646B2

    公开(公告)日:2005-06-07

    申请号:US10052160

    申请日:2002-01-16

    申请人: Woong K. Yoon

    发明人: Woong K. Yoon

    摘要: A universal snap-fit system for interconnecting multiple circuit boards in a stacked relationship is provided. The system allows circuit boards to be stacked with a minimum of assembly time. In addition, the system allows circuit boards of varying thicknesses to be stacked, without requiring the provision of system components in a multitude of sizes. The provided system also allows more than two circuit boards to be interconnected to one another in a stacked relationship without requiring multiple sets of attachment holes in interior circuit boards. In addition, more than two circuit boards can be stacked quickly and easily.

    摘要翻译: 提供了一种用于以堆叠关系互连多个电路板的通用卡扣配合系统。 该系统允许电路板以最小的组装时间堆叠。 此外,该系统允许堆叠不同厚度的电路板,而不需要提供多种尺寸的系统组件。 所提供的系统还允许两个以上的电路板以堆叠的关系彼此互连,而不需要内部电路板中的多组连接孔。 此外,可以快速,轻松地堆叠两个以上的电路板。

    Carbon-glass fuse
    7.
    发明授权
    Carbon-glass fuse 失效
    碳玻璃保险丝

    公开(公告)号:US5936509A

    公开(公告)日:1999-08-10

    申请号:US943449

    申请日:1997-10-03

    CPC分类号: H01H85/06 H01H85/30 H01H85/32

    摘要: The fusible element of an electrical fuse is made from carbon glass. The carbon glass melts and pulls apart safely when the fuse blows, so the fusible element normally does not need an enclosure. The carbon glass glows and emits light when current flowing therethrough approaches the fuse's current-carrying capacity, thereby acting as a current sensor and a warning indicator that the fuse is about to blow.

    摘要翻译: 电熔丝的易熔元件由碳玻璃制成。 当保险丝熔断时,碳玻璃会熔化并拉开,所以易熔元件通常不需要外壳。 当电流流过其中时,碳玻璃发光并发光,接近保险丝的载流能力,从而充当电流传感器和保险丝将要吹气的警告指示器。

    Locking mechanism for a rotatable fastener
    8.
    发明授权
    Locking mechanism for a rotatable fastener 失效
    可旋转紧固件的锁定机构

    公开(公告)号:US5931621A

    公开(公告)日:1999-08-03

    申请号:US63163

    申请日:1998-04-20

    IPC分类号: F16B39/02 F16B39/10

    CPC分类号: F16B39/02

    摘要: The present locking mechanism for rotatable fastener functions to reliably and inexpensively secure a rotatable fastener in place once it is seated. This is accomplished by the formation of an aperture into the body of the rotatable fastener in a lengthwise direction coaxial with the axis of the cylindrical shaped rotatable fastener. A second aperture is formed in the body of the rotatable fastener perpendicular to the first aperture and intersecting same. A locking pin is placed in the second aperture such that one end of the locking pin is flush with the surface of the body of the rotatable fastener, non-interfering with the operation of the threads formed on the exterior surface of the body of the rotatable fastener. A second end of the locking pin protrudes into the first aperture. A locking post is placed in the first aperture, located above the locking pin and accessible via the open end of the first aperture in the head of the rotatable fastener. A craftsperson uses a tool to force the locking post down into the first aperture to thereby engage the protruding end of the locking pin, forcing the locking pin to move in the second aperture away from the first aperture. The locking pin is thereby driven into the wall of the cylindrical shaped aperture into which the rotatable fastener is threaded and prevents the further rotation of the rotatable fastener in either direction.

    摘要翻译: 本可旋转紧固件的锁定机构有助于将可旋转的紧固件可靠且廉价地固定在适当的位置。 这是通过在与圆柱形可旋转紧固件的轴线同轴的长度方向上形成可旋转紧固件的主体的孔来实现的。 第二孔形成在垂直于第一孔的可旋转紧固件的本体中并与其相交。 锁定销放置在第二孔中,使得锁定销的一端与可旋转紧固件的主体的表面齐平,不会干扰形成在可旋转的主体的外表面上的螺纹的操作 紧固件。 锁定销的第二端突出到第一孔中。 锁定柱放置在位于锁定销上方的第一孔中,并经由可旋转紧固件的头部中的第一孔的开口端接近。 工匠使用工具将锁定柱向下压入第一孔,从而接合锁定销的突出端,迫使锁定销在第二孔中移动远离第一孔。 因此,锁定销被驱动到圆柱形孔的壁中,可旋转紧固件被拧入该壁的壁中,并且防止可旋转紧固件在任一方向上进一步旋转。

    Passive cascaded low-pass and high-pass filter with variable attenuation
    9.
    发明授权
    Passive cascaded low-pass and high-pass filter with variable attenuation 失效
    被动级联低通和高通滤波器,具有可变衰减

    公开(公告)号:US5905417A

    公开(公告)日:1999-05-18

    申请号:US815617

    申请日:1997-03-12

    IPC分类号: H01F1/34 H01P1/215 H03H7/01

    CPC分类号: H01P1/215

    摘要: A passive cascaded low-pass and high-pass filter comprises a conductive ferrite block (100) for filtering out some and not others of the frequencies of a multi-frequency electrical signal, and a pair of electrical contacts (101) on the block for connecting the unfiltered signal to the block and connecting the filtered signal from the block. The filter characteristic depends upon the ferrite's stoichiometry, but is independent of the ferrite's geometry. Signal attenuation caused by the filter evenly across the whole frequency range can be varied by varying the stress between one or both contacts and the block, via various stress-inducing mechanisms (400, 500).

    摘要翻译: 无源级联低通和高通滤波器包括用于滤除多频电信号的一些频率而不是其它频率的导电铁氧体块(100),以及在该块上的一对电触点(101),用于 将未滤波的信号连接到块并连接来自块的滤波信号。 滤波器特性取决于铁氧体的化学计量,但与铁素体的几何形状无关。 滤波器在整个频率范围内均匀地引起的信号衰减可以通过各种应力诱导机构(400,500)改变一个或两个触点和块之间的应力来改变。

    EMC/ESD mitigation module
    10.
    发明授权
    EMC/ESD mitigation module 有权
    EMC / ESD缓解模块

    公开(公告)号:US06972967B2

    公开(公告)日:2005-12-06

    申请号:US10372058

    申请日:2003-02-20

    IPC分类号: H05K1/02 H05K9/00

    CPC分类号: H05K9/0067 H05K1/0233

    摘要: An assembly for mitigating at least one of an electrostatic discharge and electromagnetic interference is provided. The assembly includes (a) first and second spaced apart electrical conductors 108 and 116 and (b) a mitigation module 300 electrically coupled to the first and second spaced apart electrical conductors to control a magnitude of an electrostatic discharge and/or electromagnetic interference in the first and second electrical conductors 108 and 116. One or more of the following statements is true: (i) the mitigation module 300 comprises a ferrite material 304; (ii) the mitigation module 300 comprises a lossy dielectric material 308; and (iii) an equivalent electrical circuit for at least part of the mitigation module 300 comprises at least a first circuit segment 512 comprising a first inductor and a first capacitor electrically connected in parallel and a second capacitor 504 electrically connected in series with the first circuit segment 512. The first and second electrical conductors can be, for example, a ground plane of a printed circuit board 108 and a wall of the enclosure or chassis 116.

    摘要翻译: 提供了用于减轻静电放电和电磁干扰中的至少一个的组件。 组件包括(a)第一和第二间隔开的电导体108和116和(b)缓和模块300,其电耦合到第一和第二间隔开的电导体,以控制静电放电和/或电磁干扰的大小 第一和第二电导体108和116。 一个或多个以下陈述是真实的:(i)缓解模块300包括铁氧体材料304; (ii)减轻模块300包括有损介电材料308; 和(iii)用于至少部分缓解模块300的等效电路包括至少第一电路段512,其包括第一电感器和并联电连接的第一电容器和与第一电路串联电连接的第二电容器504 段512。 第一和第二电导体可以是例如印刷电路板108的接地平面和外壳或机架116的壁。