公开(公告)号：US06452094B2

公开(公告)日：2002-09-17

申请号：US09325178

申请日：1999-06-03

申请人： Daryle Pat Donner ,  Harold Wayne Friesen ,  David R. Hawkins ,  Robert Henry Jackson ,  Stephen Taylor Zerbs

发明人： Daryle Pat Donner ,  Harold Wayne Friesen ,  David R. Hawkins ,  Robert Henry Jackson ,  Stephen Taylor Zerbs

IPC分类号： H01B1102

CPC分类号： H01B11/02

摘要： A local area network cable capable of high speed signal transmission has a plurality of twisted pairs of conductors enclosed within a jacket. Each of the twisted pairs has a different twist frequency than any of the other pairs, and at least one of the pairs has a direction of twist that is different from the other twisted pairs, that is, it may have a right hand twist where the other pairs have a left hand twist. In a four pair cable, two of the pairs, of different twist frequency, have imparted thereto a right hand twist, and two of the pairs have a left hand twist.

摘要翻译： 能够进行高速信号传输的局域网电缆具有封装在护套内的多对双绞线。 每对双绞线具有与任何另一对不同的扭曲频率，并且该对中的至少一个具有与其它双绞线不同的扭曲方向，也就是说，其可以具有右手扭曲，其中， 其他对左手扭曲。 在四对电缆中，具有不同扭转频率的两对对已经赋予了右手扭曲，并且两对中的一对具有左手扭曲。

公开(公告)号：US06608255B1

公开(公告)日：2003-08-19

申请号：US08861481

申请日：1997-05-22

申请人： Daryle Pat Donner ,  Harold Wayne Friesen ,  David R. Hawkins ,  Stephen Taylor Zerbs

发明人： Daryle Pat Donner ,  Harold Wayne Friesen ,  David R. Hawkins ,  Stephen Taylor Zerbs

IPC分类号： H01B700

CPC分类号： H01B11/02

摘要： A cabling media which is suitable for high performance data transmission includes a plurality of insulated metallic conductor-pairs, each pair including two plastic insulated metallic conductors which are twisted together. More specifically, the introduction of a periodic rotation along the length of each insulated conductor essentially acts to cancel out a large number of the adverse effects which may result due to a lack of conductor concentricity and/or dielectric eccentricity.

摘要翻译： 适用于高性能数据传输的布线介质包括多个绝缘金属导体对，每对包括扭绞在一起的两个塑料绝缘金属导体。 更具体地，沿着每个绝缘导体的长度引入周期性旋转基本上起到抵消由于缺乏导体同心度和/或电介质偏心率而导致的大量不利影响的作用。

公开(公告)号：US5952607A

公开(公告)日：1999-09-14

申请号：US792609

申请日：1997-01-31

申请人： Harold Wayne Friesen ,  David R. Hawkins ,  Stephen Taylor Zerbs

发明人： Harold Wayne Friesen ,  David R. Hawkins ,  Stephen Taylor Zerbs

IPC分类号： H01B11/02

CPC分类号： H01B11/02

摘要： A cabling media which is suitable for data transmission with relatively low crosstalk includes a plurality of metallic conductors-pairs, each pair including two plastic insulated metallic conductors which are twisted together. The characterization of the twisting is important and relates to parameters such as twist length as well as core strand length/lay. More specifically, particular combinations of twist lengths and core strand length/lay are purposely selected for each insulated pair of the cable in order to achieve performance capabilities that significantly surpass those required under TIA/EIA-568A. In one particular embodiment of this invention, a cable comprises as its transmission media, four twisted pair of individually insulated conductors with each of the insulated conductors including a metallic conductor and an insulation cover which encloses the metallic conductor. The twisting together of the conductors of each pair is characterized as specifically set out herein and the plurality of transmission media are enclosed in a sheath system which in a most simplistic embodiment may be a single jacket made of a plastic material. As a result of the particular twist scheme employed for the conductor pairs, operational performance of the resulting cable is improved. Also, the cable of this invention is relatively easy to connect and is relatively easy to manufacture and install.

摘要翻译： 适用于具有相对低串扰的数据传输的布线介质包括多个金属导体对，每对包括扭绞在一起的两个塑料绝缘金属导体。 扭曲的表征是重要的，并且涉及诸如扭转长度以及芯线长度/铺设的参数。 更具体地，为了实现显着地超过TIA / EIA-568A所要求的性能能力，有意地为每个绝缘对的电缆选择扭曲长度和芯线长度/捻度的特定组合。 在本发明的一个具体实施例中，电缆包括四个双绞互为单独绝缘的导体，其中每个绝缘导体包括金属导体和封闭金属导体的绝缘盖。 每对的导体的扭转在一起的特征在于这里具体阐述，并且多个传输介质被封装在护套系统中，其在最简单的实施例中可以是由塑料材料制成的单个护套。 作为用于导体对的特定扭转方案的结果，所得到的电缆的操作性能得到改善。 此外，本发明的电缆相对容易连接并且相对容易制造和安装。

公开(公告)号：US06194663B1

公开(公告)日：2001-02-27

申请号：US08808901

申请日：1997-02-28

申请人： Harold Wayne Friesen ,  David R. Hawkins ,  Stephen Taylor Zerbs

发明人： Harold Wayne Friesen ,  David R. Hawkins ,  Stephen Taylor Zerbs

IPC分类号： H01B1102

CPC分类号： H01B11/02

摘要： A cabling media which is suitable for high performance data transmission includes a plurality of metallic conductors-pairs, each pair including two plastic insulated metallic conductors which are twisted together. The present invention describes how the selection and incorporation of metallic conductors having different diameters within a single communication cable can significantly enhance the operational performance of the cable. More specifically, given a first conductor-pair having a certain conductor diameter and twist length, and at least one other conductor-pair with a different twist length, the present invention purposely selects metallic conductors for this other conductor-pair with a different diameter than that of the first conductor-pair so as to ensure that the insertion loss exhibited by the additional conductor-pair is essentially equal to the insertion loss exhibited by the first conductor-pair. The differing conductor diameters allows compensation for the variance in insertion loss from one conductor-pair to the next due to changes in the twist length employed for the plurality of conductor-pairs. Additionally, it is described herein that the insulation thickness of the conductors may be altered from conductor-pair to conductor-pair to ensure that the characteristic impedance measured for the additional conductor-pair is essentially equal to the characteristic impedance measured for the first conductor-pair. As a result of the particular selection of conductors with differing diameters and/or insulation thicknesses for at least two of the conductor pairs, the operational performance of the resulting cable is improved.

摘要翻译： 适用于高性能数据传输的布线介质包括多个金属导体对，每对包括扭绞在一起的两个塑料绝缘金属导体。 本发明描述了如何在单个通信电缆内选择和结合具有不同直径的金属导体可以显着地提高电缆的操作性能。 更具体地，给定具有一定导体直径和扭曲长度的第一导体对以及具有不同扭转长度的至少一个其它导体对，本发明有意地选择具有不同直径的另外的导体对的金属导体 第一导体对的插入损耗基本上等于第一导体对所示的插入损耗。 不同的导体直径允许由于多个导体对中使用的扭转长度的变化而补偿从一个导线对到下一个导线对的插入损耗的变化。 此外，这里描述了导体的绝缘厚度可以从导线对改变为导体对，以确保测量的附加导体对的特性阻抗基本上等于对于第一导体对测量的特性阻抗， 对。 由于针对至少两个导体对的具有不同直径和/或绝缘厚度的导体的特定选择的结果，所得到的电缆的操作性能得到改善。

公开(公告)号：US06288328B1

公开(公告)日：2001-09-11

申请号：US09272514

申请日：1999-03-19

申请人： Douglas R. Brake ,  Philip Nelson Gardner ,  Trent M. Hayes ,  Paul G. Koehler ,  Dean J. Schwery ,  Stephen Taylor Zerbs

发明人： Douglas R. Brake ,  Philip Nelson Gardner ,  Trent M. Hayes ,  Paul G. Koehler ,  Dean J. Schwery ,  Stephen Taylor Zerbs

IPC分类号： H01B1100

CPC分类号： H01B11/1821

摘要： A coaxial cable [10, 50] includes an inner conductor [11] that is separated from an outer conductor [13] by a layer of insulating material [12]. The outer conductor includes a thin sheet of metallic foil that envelops the insulating material and has a seam [14] that extends in the longitudinal direction of the cable. In a first embodiment, the insulated conductor is axially rotated (twisted) with respect to its own longitudinal axis. In a second embodiment, the outer conductor is wrapped around the layer of insulating material. In both embodiments, there is relative rotation between the insulated conductor and the outer conductor. This practice is referred to as relative insulated conductor rotation, and it significantly improves the structural return loss characteristics of a coaxial cable when the outer conductor includes an asymmetry, such as a seam, that extends in the longitudinal direction of the cable. A braided-wire shield [15] is positioned between the outer conductor and a plastic jacket [16], which provides environmental protection for the cable.

摘要翻译： 同轴电缆[10,50]包括通过绝缘材料层[12]与外部导体[13]分离的内部导体[11]。 外导体包括金属箔薄片，其包围绝缘材料并且具有在电缆的纵向方向上延伸的接缝[14]。 在第一实施例中，绝缘导体相对于其自身的纵向轴线轴向旋转（扭曲）。 在第二实施例中，外部导体缠绕在绝缘材料层周围。 在两个实施例中，在绝缘导体和外部导体之间存在相对旋转。 这种做法被称为相对绝缘导体旋转，并且当外部导体包括在电缆的纵向方向上延伸的不对称性（例如接缝）时，其显着地改善了同轴电缆的结构回波损耗特性。 编织线屏蔽[15]位于外导体和塑料护套[16]之间，为电缆提供环境保护。

公开(公告)号：US5739473A

公开(公告)日：1998-04-14

申请号：US509282

申请日：1995-07-31

申请人： Stephen Taylor Zerbs

发明人： Stephen Taylor Zerbs

IPC分类号： H01B7/295 ,  H01B11/02

CPC分类号： H01B11/02 ,  H01B7/295

摘要： The preferred embodiment of the cable disclosed includes seven groups of twisted-pairs, outlined in dashed lines in FIG. 1. Groups 12, 14, 17 and 19 have four pairs each, and groups 13, 16 and 18 have three pairs each. Six of the groups, namely 12, 13, 14, 16, 17 and 18 are referred to herein as the outer groups since they are collectively twisted and wound helically about the seventh group 19 which is centrally located throughout the length of the cable. Each of the groups of twisted pairs may be held together by a cable binder such as nylon yarn 22. The core thus formed is enclosed within a jacket 23, and the entire assembly is referred to in the art as a "honeycomb" structure. In accordance with the present invention, the twisted pairs of each of the six outer groups are insulated with a fluorinated ethylene-propylene copolymer (FEP) material such as, for example, Teflon.RTM., while the twisted pairs of the central group are insulated with a high density polyethylene (HDPE) material. Both the FEP material and the HDPE material have the low dissipation factor and low dielectric constant mentioned heretofore, which insures optimum electrical performance, especially at high frequencies. In addition, both materials present a smooth surface of substantially uniform thickness, approximately six (6) to ten (10) mils, thereby insuring a low structural return loss (SRL).

摘要翻译： 公开的电缆的优选实施例包括七组双绞线，图中虚线所示。 组12,14,17和19各有四对，组13,16和18各有三对。 这些组中的六个，即12,13,14,16,17和18在本文中被称为外部组，因为它们被共同地扭曲并围绕位于电缆整个长度的中心位置的第七组19螺旋地缠绕。 绞合线组中的每一组可以通过诸如尼龙纱线22之类的电缆固定件保持在一起。由此形成的芯被封装在护套23内，并且整个组件在本领域中被称为“蜂窝状”结构。 根据本发明，六个外部组中的每一个的双绞线与氟化乙烯 - 丙烯共聚物（FEP）材料例如Teflon TM绝缘，而中心组的双绞线与 高密度聚乙烯（HDPE）材料。 FEP材料和HDPE材料都具有迄今为止提到的低损耗因子和低介电常数，这确保了最佳的电性能，特别是在高频下。 另外，这两种材料都具有基本上均匀的厚度，大约六（6）至十（10）密尔的光滑表面，从而确保低的结构回波损耗（SRL）。