Intermodulation distortion reduction methodology for high temperature superconductor microwave filters
    71.
    发明授权
    Intermodulation distortion reduction methodology for high temperature superconductor microwave filters 失效
    高温超导体微波滤波器的互调失真降低方法

    公开(公告)号:US07761125B1

    公开(公告)日:2010-07-20

    申请号:US11240786

    申请日:2005-09-27

    IPC分类号: H01B12/02 H01P1/00

    摘要: Intermodulation distortion (IMD) is known to be an impediment to progress in superconductor-based filter technology. The present invention's methodology for reducing IMD can open doors to heretofore unseen practical applications involving high temperature superconductor (HTS) filters. Typical inventive practice includes (a) increasing the thickness d, and/or (b) changing the operation temperature T, of the filter's HTS film. The film's thickness d is increased in such a way as to decrease the IMD power PIMD in accordance with the material-independent proportionate relationship PIMD∝1/d1.5-6. The film's operation temperature T is bettered or optimized in accordance with the material-independent proportionate relationship PIMD∝(λO(T))10(K(2)(T))2/(ΔO(T))6, and further in accordance with three individual material-dependent relationships, namely, between operation temperature T and each of linear penetration depth λO, gap maximum ΔO, and kernel K(2). Some inventive embodiments include oxygen overdoping of the film as an additional/alternative IMD-reductive measure.

    摘要翻译: 已知互调失真(IMD)是基于超导体的滤波技术的进展的障碍。 本发明的减少IMD的方法可以打开门到目前为止看不到的涉及高温超导体(HTS)过滤器的实际应用。 典型的创新实践包括(a)增加过滤器的HTS膜的厚度d和/或(b)改变操作温度T。 膜的厚度d按照与材料无关的成比例关系PIMDα1/ d1.5-6降低IMD功率PIMD的方式增加。 根据与材料无关的比例关系PIMDα(λO(T))10(K(2)(T))2 /(&Dgr; O(T))6,更好地或优化膜的操作温度T 根据三个单独的材料依赖关系,即在操作温度T和每个线性穿透深度λO,间隙最大值&Dgr; O和核K(2)之间。 一些创造性实施例包括作为附加/替代的IMD还原措施的氧过度掺杂。

    GRANULAR SUPERCONDUCTING JOINT
    72.
    发明申请
    GRANULAR SUPERCONDUCTING JOINT 有权
    颗粒超导接头

    公开(公告)号:US20090264297A1

    公开(公告)日:2009-10-22

    申请号:US12425035

    申请日:2009-04-16

    申请人: Davide NARDELLI

    发明人: Davide NARDELLI

    摘要: A superconducting joint that structurally binds a first superconducting segment to a second superconducting segment. The first and second superconducting segment each include corresponding areas containing a granular superconducting substance formed by a first element and a second element. The superconducting joint includes a solid non-superconducting binding formed from a source of the first element and a source of the second element combined to produce the granular superconducting substance around the solid non-superconducting binding to permit for the flow of superconducting current through the first superconducting segment and the second superconducting segment.

    摘要翻译: 将第一超导部分结构地结合到第二超导部分的超导接头。 第一和第二超导段各自包括包含由第一元件和第二元件形成的粒状超导物质的对应区域。 超导接头包括由第一元件的源和第二元件的源形成的固体非超导结合物,其结合以在固体非超导结合周围产生粒状超导物质,以允许超导电流流过第一元件 超导段和第二超导段。

    Superconducting Strip Having Metal Coating Layer And Method Of Manufacturing The Same
    74.
    发明申请
    Superconducting Strip Having Metal Coating Layer And Method Of Manufacturing The Same 有权
    具有金属涂层的超导带及其制造方法

    公开(公告)号:US20090111700A1

    公开(公告)日:2009-04-30

    申请号:US12177749

    申请日:2008-07-22

    IPC分类号: H01B12/02 H01L39/24

    CPC分类号: H01L39/143 H01L39/248

    摘要: Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip. The method of manufacturing the superconducting strip includes: washing a superconducting thin film, a stabilizing substrate and an anti-bonding substrate with alcohol; forming a metal coating layer on each of the superconducting thin film and stabilizing substrate; adhering the superconducting thin film and stabilizing substrate to each other such that the metal coating layer formed on the superconducting thin film faces the metal coating layer formed on the stabilizing substrate; disposing the anti-bonding substrate on an outside of the stabilizing substrate and then winding the anti-bonding substrate such that the anti-bonding substrate and the stabilizing substrate are closely adhered to each other by winding the anti-bonding substrate around a bobbin under a predetermined tension; and heat-treating the superconducting thin film and stabilizing substrate such that they are bonded to each other by the metal coating layer disposed therebetween.

    摘要翻译: 本文公开了具有金属涂层的超导条和制造超导条的方法。 超导条的制造方法包括:用醇洗涤超导薄膜,稳定基板和抗粘合基板; 在每个超导薄膜和稳定基板上形成金属涂层; 将超导薄膜和稳定基板彼此粘合,使得形成在超导薄膜上的金属涂层面对形成在稳定基板上的金属涂层; 将所述防粘接基板设置在所述稳定基板的外侧,然后卷绕所述防粘接基板,使得所述防粘接基板和所述稳定基板通过将所述防粘接基板卷绕在绕线管的下方而彼此紧密地粘合 预定张力; 对超导薄膜和稳定基板进行热处理,使它们通过设置在其间的金属涂层彼此接合。

    Metal salt resistive layer on an superconducting element
    75.
    发明授权
    Metal salt resistive layer on an superconducting element 失效
    超导元件上的金属盐电阻层

    公开(公告)号:US07330744B2

    公开(公告)日:2008-02-12

    申请号:US10490515

    申请日:2001-11-14

    IPC分类号: H01B12/02 H01B39/02

    CPC分类号: H01L39/143 H01L39/248

    摘要: The invention relates to a process for applying a resistive layer on an oxide superconducting element for electrically decoupling superconducting filaments contained in the element, an oxide superconducting element having a resistive layer and use thereof, in particular in ac applications, the resistive layer being formed by chemically converting the surface of a conducting metal coating sheating the superconducting core of said filaments into a salt of a metal constituting said conducting coating.

    摘要翻译: 本发明涉及一种在氧化物超导元件上施加电阻层以电耦合元件中所含的超导细丝的方法,具有电阻层的氧化物超导元件及其用途,特别是在交流应用中,电阻层由 将导电金属涂层的表面化学转化成所述长丝的超导芯,形成构成所述导电涂层的金属的盐。

    Resonator having folded transmission line segments and filter comprising the same
    77.
    发明授权
    Resonator having folded transmission line segments and filter comprising the same 失效
    具有折叠传输线段的谐振器和包括该传输线段的滤波器

    公开(公告)号:US07181259B2

    公开(公告)日:2007-02-20

    申请号:US10480743

    申请日:2002-06-13

    IPC分类号: H01P1/203 H01B12/02

    摘要: A resonator and filter including the resonator is disclosed. The resonator (100) includes an open conductive loop (100) with folded transmission line segments (124, 134) extending from the adjacent ends of the loop. Of each transmission line segment, the portion emanating from the respective end of the loop is positioned generally along-side the corresponding portion of the other transmission line segment. That is, the two transmission line segments are folded away from each other. The resonator can be generally elongated in shape, with the loop at one end of the long axis and the transmission line segments at the other. The transmission line segments occupy a footprint (W2) that is not substantially greater than the width of the loop (W1). The filter includes multiple resonators of the invention, each resonator being coupled to at least another or the resonators. The resonators can be positioned in a side-by-side fashion, with the long axes of the resonators parallel or anti-parallel to one another.

    摘要翻译: 公开了一种包括谐振器的谐振器和滤波器。 谐振器(100)包括具有从环路的相邻端延伸的折叠传输线段(124,134)的开放导电回路(100)。 在每个传输线段中,从环路的相应端发出的部分大致沿着另一传输线段的对应部分的位置。 也就是说,两个传输线段彼此折叠。 谐振器的形状通常可以是细长的,其中环在长轴的一端和传输线段在另一端。 传输线段占据基本上不大于环路宽度(W 1)的覆盖区(W 2)。 滤波器包括本发明的多个谐振器,每个谐振器耦合到至少另一谐振器或谐振器。 谐振器可以并排定位,谐振器的长轴彼此平行或反平行。

    Superconductive filter module, superconductive filter assembly and heat insulating type coaxial cable
    78.
    发明授权
    Superconductive filter module, superconductive filter assembly and heat insulating type coaxial cable 有权
    超导滤波器模块,超导滤波器组件和隔热型同轴电缆

    公开(公告)号:US07174197B2

    公开(公告)日:2007-02-06

    申请号:US11024990

    申请日:2004-12-29

    IPC分类号: H01P1/20 H01B12/02

    摘要: The present invention relates to superconductive filter technology. According to the arrangement of the superconductive filter (1), a columnar resonating member (23) having a superconductive material formed on the surface thereof is attached at one of its ends thereof to an inner wall (22) of a filter housing (21) so that a space is interposed between the columnar resonating member and each of connectors (27a, 27b) which are connectable to a signal input/output cables (5a, 5b), respectively. According to this arrangement, heat conduction from the outside can be suppressed as far as possible, and the superconductive condition can be created with stability, with the result that a stable filtering characteristic can be created. Further, the superconductive filter according to the present invention will become excellent in power withstand performance, and hence even if the number of stages of filters is increased for attaining a steep cutoff characteristic, the loss deriving from the increased number of stages can be suppressed to the minimum level.

    摘要翻译: 本发明涉及超导滤波技术。 根据超导滤波器(1)的布置,在其表面形成有超导材料的柱状谐振构件(23)的一端附接到过滤器壳体(21)的内壁(22) 使得柱状谐振构件和可连接到信号输入/输出电缆(5a,5b)的每个连接器(27a,27b)之间插入空间。 根据该结构,可以尽可能地抑制来自外部的热传导,并且可以稳定地产生超导条件,从而可以产生稳定的过滤特性。 此外,根据本发明的超导滤波器将具有优异的耐电性能,因此即使提高滤波器的级数以获得陡峭的截止特性,也可以将从增加的级数得到的损耗抑制到 最低水平。

    Varactor tuning for a narrow band filter

    公开(公告)号:US20060250196A1

    公开(公告)日:2006-11-09

    申请号:US11484254

    申请日:2006-07-11

    IPC分类号: H03H7/12 H01B12/02

    摘要: A method and apparatus for providing dynamic and remote tuning of a cryo-cooled bandpass filter is disclosed. The device includes resonator element and a voltage sensitive element as part of the capacitance in a narrow band filter circuit. A varactor such as a GaAs varactor may be used. Alternatively, a capacitor having a voltage-sensitive dielectric such as SrTiO3 may be used. A computer may be connected to the varactor to provide for automated tuning. The voltage-sensitive capacitor may be integral with the resonator element. The invention provides for remote and dynamic tuning of a narrow bandpass filter while located within its sealed cryo-cooled environment.

    Rf circuit component
    80.
    发明申请
    Rf circuit component 有权
    Rf电路组件

    公开(公告)号:US20060006957A1

    公开(公告)日:2006-01-12

    申请号:US10518619

    申请日:2004-03-02

    申请人: Akira Enokihara

    发明人: Akira Enokihara

    IPC分类号: H01P1/203 H01B12/02

    CPC分类号: H01P1/203

    摘要: An RF circuit component according to the present invention includes a substrate with a principal surface and a plurality of resonators, including a first resonator, a second resonator and a third resonator, which are arranged on the principal surface of the substrate so as to be coupled in series together. Each of the first, second and third resonators is made of a conductor supported on the substrate. The resonant modes of each of the first, second and third resonators include two fundamental resonant modes that oscillate perpendicularly to each other within a plane that is defined parallel to the principal surface of the substrate. The second resonator is arranged between the first and third resonators, and the oscillation direction of one of the fundamental resonant modes of the second resonator defines an angle greater than 0 degrees but smaller than 90 degrees with respect to that of its associated fundamental resonant mode of the first resonator and/or the third resonator.

    摘要翻译: 根据本发明的RF电路部件包括具有主表面的基板和包括第一谐振器,第二谐振器和第三谐振器的多个谐振器,它们布置在基板的主表面上以便被耦合 串联在一起 第一,第二和第三谐振器中的每一个由支撑在基板上的导体制成。 第一,第二和第三谐振器中的每一个的谐振模式包括在平行于衬底的主表面限定的平面内彼此垂直振荡的两个基本谐振模式。 第二谐振器布置在第一谐振器和第三谐振器之间,并且第二谐振器的基本谐振模式之一的振荡方向相对于其相关联的基本谐振模式的基本谐振模式定义为大于0度但小于90度的角度 第一谐振器和/或第三谐振器。