公开(公告)号：US07738933B2

公开(公告)日：2010-06-15

申请号：US11970695

申请日：2008-01-08

申请人： Chien-Fu Shih ,  Yongming Zhang ,  Brian H. Moeckly

发明人： Chien-Fu Shih ,  Yongming Zhang ,  Brian H. Moeckly

IPC分类号： H03H7/12 ,  H01B12/02

CPC分类号： H03J1/0008 ,  H03J5/0245 ,  Y10S505/70 ,  Y10S505/866

摘要： An 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.

摘要翻译： 公开了一种用于提供冷却带通滤波器的动态和远程调谐的装置。 该器件包括谐振元件和电压敏感元件作为窄带滤波器电路中电容的一部分。 可以使用诸如GaAs变容二极管的变容二极管。 或者，可以使用具有诸如SrTiO 3的电压敏感电介质的电容器。 计算机可以连接到变容二极管以提供自动调谐。 电压敏感电容器可以与谐振器元件成一体。 本发明提供了窄带通滤波器的远程和动态调谐，同时位于其密封的低温冷却环境中。

公开(公告)号：US07071797B2

公开(公告)日：2006-07-04

申请号：US10371019

申请日：2003-02-19

申请人： Shen Ye

发明人： Shen Ye

IPC分类号： H01B12/02

CPC分类号： H03H7/1766 ,  H03H2/00 ,  H03H7/0115

摘要： A method and apparatus to control intermodulation in a circuit for filtering over the air signals by creating an asymmetric resonator is disclosed. By creating the asymmetric resonator, the intermodulation from out of band signals is reduced while keeping the filter size relatively unchanged. In general, the intermodulation is reduced by lowering the current density in the resonator (e.g., so as to maintain the linearity of the electrical characteristics of the resonator), and more specifically by utilizing the principle that the inductive elements in a resonator experience the largest current changes. Therefore, the size of the inductor is changed in order to accommodate the larger power. An additional feature of the present invention is that not every inductive element of the filter needs to be enlarged. Generally only the first (or alternatively the first and second) resonators need to be increased in size. Another feature of the present invention is the physical order in which the filters are laid out. Laying out the components with the bandpass filter first can prevent (or significantly reduce) intermodulation generated by those components due to out-of-band interference signals.

公开(公告)号：US5600243A

公开(公告)日：1997-02-04

申请号：US403728

申请日：1995-03-17

申请人： Mark S. Colclough

发明人： Mark S. Colclough

IPC分类号： G01R33/035

CPC分类号： G01R33/0356 ,  Y10S505/846

摘要： A coupling structure for coupling a feedback signal to a superconducting quantum interference device (SQUID) by mutual inductance. In one embodiment the SQUID loop (A) is shielded from external magnetic fields perpendicular to it by a superconducting ground plane (B) at all points except for the pick-up loop (C). A feedback signal is coupled to the SQUID loop (A) by a feedback loop (D) which has a mutual inductance with the SQUID loop (A). During operation, the feedback loop (D) conducts a current in only one direction around the SQUID loop (A). This geometry ensures that the SQUID loop (A) is shielded from external magnetic fields, except at the pick-up loop (C), by the ground plane, and is balanced against fields parallel to the ground plane. The magnetic field produced by the current in the feedback coil (D) is small far from the SQUID (A). The feedback loop (D) is connected to exterior feedback electronics.

摘要翻译： PCT No.PCT / US93 / 08496 Sec。 371日期1995年3月17日 102（e）1995年3月17日PCT PCT 1993年9月7日PCT公布。 出版物WO95 / 07470 日期1995年3月16日一种用于通过互感将反馈信号耦合到超导量子干涉器件（SQUID）的耦合结构。 在一个实施例中，除了拾波回路（C）之外的所有点，SQUID回路（A）通过超导接地平面（B）屏蔽与其垂直的外部磁场。 反馈信号通过与SQUID回路（A）具有互感的反馈回路（D）耦合到SQUID回路（A）。 在操作期间，反馈回路（D）仅在SQUID回路（A）周围的一个方向上传导电流。 这种几何形状确保了SQUID环路（A）除了接地平面外的外部磁场（除了拾波回路（C））外，并且与平行于接地平面的场平衡。 由反馈线圈（D）中的电流产生的磁场离SQUID（A）很小。 反馈回路（D）连接到外部反馈电子设备。

公开(公告)号：US5449659A

公开(公告)日：1995-09-12

申请号：US973966

申请日：1992-11-09

申请人： Stephen M. Garrison ,  Randy W. Simon

发明人： Stephen M. Garrison ,  Randy W. Simon

IPC分类号： H01L39/24 ,  H01L39/00

CPC分类号： H01L39/2422 ,  Y10S148/012 ,  Y10S505/701 ,  Y10S505/702

摘要： A method for producing multilayer structures comprised of materials with incompatible processing parameters is disclosed. A bonding layer of arbitrary dielectric constant is applied to each of two substructures. Each substructure is composed of a substrate and at least one epitaxial crystalline layer. Examples of particular bonding materials used are polyimide, fluorocarbon polymers, other organic materials, and glass. The bonding material may be applied like photoresist, or sputtered, or applied in any appropriate manner consistent with the processing constraints of the crystalline materials. Structures formable in this way include superconductor-amorphous dielectric-superconductor and ferroelectric-insulator-semiconductor trilayers, as well as microwave resonators and multichip modules.

摘要翻译： 公开了一种由具有不相容处理参数的材料制成多层结构的方法。 将任意介电常数的结合层施加到两个子结构中的每一个上。 每个子结构由衬底和至少一个外延晶体层组成。 使用的特定粘合材料的实例是聚酰亚胺，氟碳聚合物，其它有机材料和玻璃。 接合材料可以像光致抗蚀剂一样施加，或者溅射，或以与结晶材料的加工约束一致的任何适当方式施加。 以这种方式形成的结构包括超导体非晶介质超导体和铁电绝缘体 - 半导体三层膜，以及微波谐振器和多芯片模块。

公开(公告)号：US5090819A

公开(公告)日：1992-02-25

申请号：US569435

申请日：1990-08-20

申请人： Aharon Kapitulnik

发明人： Aharon Kapitulnik

IPC分类号： G01J5/20 ,  H01L39/10

CPC分类号： H01L39/10 ,  G01J5/20 ,  Y10S505/847 ,  Y10S505/849

摘要： A superconducting transition edge bolometer is constructed using high critical temperature conducting films by stabilizing a substrate of magnesium oxide or sapphire with a silicon base that is bonded to the substrate using a thermally conductive bonding layer. The base is etched away in the region of the desired radiation detecting portion of the superconductor establishing a controlled thermal connection between the detecting portion and the base which base serves as a thermal bath for the bolometer.

摘要翻译： 使用高临界温度导电膜构建超导过渡边缘辐射热计，通过使用导热接合层将与氧化镁或蓝宝石的衬底相结合的硅基与衬底结合。 在超导体的期望的辐射检测部分的区域中蚀刻基底，在检测部分和基底之间建立受控的热连接，该基底用作测辐射热计的热浴。

公开(公告)号：US20060025309A1

公开(公告)日：2006-02-02

申请号：US10507066

申请日：2003-03-10

申请人： Shen Ye

发明人： Shen Ye

IPC分类号： H01L39/24

CPC分类号： H01P1/20381 ,  H01P1/20336

摘要： A method and apparatus to provide appropriate coupling between resonators in an HTS microstrip filter are disclosed. Primary and secondary couplings between a pair of resonators are utilized. With a given spacing, the primary coupling is fixed, while the secondary coupling can have different magnitude. In addition, the secondary coupling can have the same phase or opposite phase as the primary coupling. With different combinations, large or small bandwidth filters can be made without very small or very large spacing between resonators. The same cross coupling layout configuration may be designed to achieve either positive or negative results.

摘要翻译： 公开了一种在HTS微带滤波器中提供谐振器之间适当耦合的方法和装置。 利用一对谐振器之间的一次和二次耦合。 以给定的间隔，主耦合是固定的，而辅助耦合可以具有不同的大小。 此外，次级耦合可以具有与主耦合相同的相位或相位相位。 通过不同的组合，可以在谐振器之间没有非常小或非常大的间隔的情况下制造大或小带宽滤波器。 可以设计相同的交叉耦合布局配置以实现正或负结果。

公开(公告)号：US5831278A

公开(公告)日：1998-11-03

申请号：US616551

申请日：1996-03-15

申请人： Stuart J. Berkowitz

发明人： Stuart J. Berkowitz

IPC分类号： H01L39/22 ,  H03K19/195 ,  H03K19/21 ,  H01L29/06 ,  H01L31/0256 ,  H03K17/92

CPC分类号： H03K19/1952 ,  H01L39/225 ,  H03K19/21 ,  Y10S505/832 ,  Y10S505/859 ,  Y10S505/861

摘要： A three-terminal device constructed from a Josephson junction with one or more asymmetric control lines is disclosed. The device is constructed with high temperature superconducting materials. The junction can be a bicrystal, SNS (Superconducting-Normal-Superconducting) or any other type of high temperature superconductor junction. The control line is either a conducting or superconducting material which is electrically isolated from the junction but inductively coupled into the junction. A portion of the control line is approximately directly above the junction and has current which at least partially flows parallel or nonparallel to current flowing across the junction. The control line current alters the magnetic field within the junction which changes the critical current of the junction. The junction is in a superconducting or resistive state depending on whether the bias current of the junction is greater than or less than the control current. Logic gates, including an XOR gate, are formed using this device and one or more control lines.

摘要翻译： 公开了一种由约瑟夫逊结与一个或多个不对称控制线构成的三端器件。 该器件由高温超导材料构成。 该结可以是双晶体，SNS（超导 - 超导）或任何其他类型的高温超导体结。 控制线是导电或超导材料，其与结点电隔离，但电感耦合到接合部。 控制线的一部分大致直接在结点的上方，并且具有至少部分平行于或不平行流过该结的电流的电流。 控制线电流改变连接处的磁场，从而改变接合点的临界电流。 接点处于超导或阻性状态，取决于接点的偏置电流是否大于或小于控制电流。 使用该装置和一个或多个控制线形成包括异或门的逻辑门。

公开(公告)号：US5767043A

公开(公告)日：1998-06-16

申请号：US393131

申请日：1995-02-21

申请人： Robin H. Cantor ,  Michael J. Burns

发明人： Robin H. Cantor ,  Michael J. Burns

IPC分类号： G01R33/035 ,  H01L39/00

CPC分类号： G01R33/0358 ,  Y10S505/846

摘要： A low-noise directly coupled dc SQUID magnetometer is disclosed. The magnetometer provides for single layer fabrication and is particularly applicable to high-T.sub.c superconductors operating at 77 Kelvin. A pair of dc SQUIDs are connected and biased in series such that the output voltage modulation with applied flux of the dual SQUID magnetometer, is double that of a single SQUID magnetometer. The bias current is applied to one SQUID and removed from the second SQUID of the pair. The magnetometer pick-up coil is directly coupled to the SQUID pair, providing for coherent modulation of the series-connected SQUIDS and a reduction of flux density noise of the device by a factor of 1/.sqroot.2.

摘要翻译： 公开了一种低噪声直接耦合的直流SQUID磁强计。 磁力计提供单层制造，特别适用于工作在77开尔文的高Tc超导体。 一对直流SQUID串联连接和偏置，使得双重SQUID磁力计的施加磁通量的输出电压调制是单个SQUID磁力计的两倍。 偏置电流施加到一个SQUID并从该对的第二SQUID中移除。 磁力计拾取线圈直接耦合到SQUID对，为串联连接的SQUIDS提供相干调制，并将器件的磁通密度噪声降低1 / 2ROOT + E，rad 2 + EE。

公开(公告)号：US5280013A

公开(公告)日：1994-01-18

申请号：US968280

申请日：1992-10-29

申请人： Nathan Newman ,  Aharon Kapitulnik ,  Brady F. Cole ,  Randy W. Simon

发明人： Nathan Newman ,  Aharon Kapitulnik ,  Brady F. Cole ,  Randy W. Simon

IPC分类号： H01L39/24

CPC分类号： H01L39/2422 ,  Y10S505/701 ,  Y10S505/702 ,  Y10S505/728 ,  Y10S505/731 ,  Y10S505/732 ,  Y10S505/866

摘要： A superconducting electronic circuit device, useful when impedance matching is desired, especially suited to microwave frequencies, consisting of a thin dielectric layer with superconducting layers on both sides. A superconductor such as Yttrium Barium Copper Oxide (YBCO) is formed on a first substrate such as lanthanum aluminate. A protective layer like gold is deposited on the YBCO and a second carrier substrate is bonded to the protected YBCO. The first substrate is then thinned into a thin dielectric film and a second layer of superconductor is epitaxially grown thereon to create the desired circuits.

摘要翻译： 一种超导电子电路装置，当需要阻抗匹配时尤其适用于微波频率，当两面具有超导层的薄电介质层时，这是有用的。 在诸如铝酸镧的第一衬底上形成诸如钇钡氧化铜（YBCO）的超导体。 在YBCO上沉积如金的保护层，第二载体衬底与受保护的YBCO结合。 然后将第一衬底减薄成薄的电介质膜，并在其上外延生长第二层超导体以产生所需的电路。

公开(公告)号：US5241828A

公开(公告)日：1993-09-07

申请号：US915440

申请日：1992-07-17

申请人： Aharon Kapitulnik

发明人： Aharon Kapitulnik

IPC分类号： H01L35/16 ,  H01L35/22

CPC分类号： H01L35/16 ,  H01L35/22

摘要： A Seebeck effect thermoelectric cooler, operative at cryogenic temperatures, in which two materials having different Seebeck coefficients are in electrical contact so that current flow thereacross cools the junction. One or both of the materials comprise a metal-insulator transition material characterized by doping, alloying, or other means to be just slightly metallic so that electrical resistance becomes lower at lower temperatures, but the Seebeck coefficient does not decline at lower temperatures, as would be the case if the material were allowed to become fully metal-like.

摘要翻译： 塞贝克效应热电冷却器在低温下工作，其中具有不同塞贝克系数的两种材料电接触，使得其中的电流流过冷却结。 一种或两种材料包括金属 - 绝缘体转变材料，其特征在于掺杂，合金化或其它手段仅仅是稍微金属的，使得在较低温度下电阻变低，但是塞贝克系数在较低温度下不会下降，如 如果材料被允许变成完全金属样的情况。