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    • 3. 发明申请
    • CRYOCABLE
    • 低温电缆
    • WO1995028750A1
    • 1995-10-26
    • PCT/US1995003993
    • 1995-03-31
    • SUPERCONDUCTOR TECHNOLOGIES, INC.
    • SUPERCONDUCTOR TECHNOLOGIES, INC.HEY-SHIPTON, Gregory, LyntonKUNIMOTO, Wallace, YoshitoSCHAREN, Michael, JamesROHLFING, Stephan, MichaelKAPOLNEK, David, J.
    • H01R04/68
    • H01R4/68H01P5/085
    • An electrical interconnect provides a path between cryogenic or cryocooled circuitry and ambient temperatures. As a system, a cryocable (10) is combined with a trough-line contact or transition (20). In the preferred embodiment, the cryocable (10) comprises a conductor (11) disposed adjacent an insulator (12) which is in turn disposed adjacent another conductor (13). The components are sized so as to balance heat load through the cryocable (10) with the insertion loss. In the most preferred embodiment, a coaxial cryocable (10) has a center conductor (11) surrounded by a dielectric (12) (e.g. Teflon ) surrounded by an outer conductor (13) which has a thickness between about 6 and 20 microns. The heat load is preferably less than one Watt, and most preferably less than one tenth of a Watt, with an insertion loss less than one decibel. In another aspect of the invention, a trough-line contact or transition (20) is provided in which the center conductor (11) is partially enveloped by dielectric (12) to form a relatively flat portion (28). The preferred overall geometry of the preferred embodiment of the cable is generally cylindrical, although other geometries are possible (e.g. stripline, microstrip, coplanar or slotline geometries).
    • 电互连提供了低温或低温冷却电路与环境温度之间的路径。 作为系统,可冷冻(10)与槽线接触或过渡(20)组合。 在优选实施例中,可冷冻(10)包括邻近绝缘体(12)设置的导体(11),所述导体(11)又邻近另一个导体(13)设置。 这些部件的大小可以平衡通过可冷冻(10)的热负荷与插入损耗。 在最优选的实施例中,同轴可冷冻(10)具有由外部导体(13)围绕的电介质(12)(例如Teflon TM)围绕的中心导体(11),外导体(13)的厚度为约6至20 微米。 热负荷优选小于1瓦特,最优选小于瓦特的十分之一,插入损耗小于1分贝。 在本发明的另一方面,提供了一种槽线接触或过渡(20),其中中心导体(11)被电介质(12)部分地包围以形成相对平坦的部分(28)。 电缆的优选实施例的优选整体几何形状通常为圆柱形,尽管其他几何形状是可能的(例如,带状线,微带,共面或槽线几何形状)。