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    • 14. 发明授权
    • Planar filter and filter system using a magnetic tuning member to provide permittivity adjustment
    • 平面滤波器和使用磁调谐元件的滤波器系统提供介电常数调节
    • US06532377B1
    • 2003-03-11
    • US09654701
    • 2000-09-01
    • Yoshiaki TerashimaHiroyuki FukeHiroyuki KayanoHisashi Yoshino
    • Yoshiaki TerashimaHiroyuki FukeHiroyuki KayanoHisashi Yoshino
    • H01P1203
    • H01P1/20363Y10S505/70Y10S505/701Y10S505/866
    • There is disclosed a planar filter which can variably control a pass frequency band with a high precision and which is superior in skirt property and little in ripple. A planar filter member and tuning member are disposed opposite to each other via a predetermined gap. The filter member is structured in such a manner that an input/output portion formed of a superconductor and a plurality of resonance elements are formed on a substrate. The tuning member is structured in such a manner that on the surface of a magnetic plate with a permeability changing by an applied magnetic field, a plurality of dielectric thin films, and a plurality of electrodes for applying electric fields to the dielectric thin films are arranged. Each of the dielectric thin films is disposed in a position opposite to a gap between the resonance elements of the filter member, or a gap between the filter member and the input/output portion. By applying a voltage between the electrodes, an effective permittivity ∈ of the gap between the resonance elements, or the gap between the resonance element and the input/output portion is variably controlled, and the skirt property and ripple are adjusted. Moreover, a resonance frequency of the resonance elements, a coupling between the resonance elements, and a coupling between the resonance element and the input/output portion may be individually and independently controlled.
    • 公开了一种平面滤波器,其能够以高精度可变地控制通过频带,并且其裙边性能优异且纹波小。 平面过滤构件和调谐构件经由预定间隙彼此相对设置。 过滤构件的结构使得在基板上形成由超导体和多个谐振元件形成的输入/输出部分。 调谐构件的结构是这样一种方式,即在磁场的表面上,通过施加的磁场改变磁导率,设置多个电介质薄膜和用于向电介质薄膜施加电场的多个电极 。 每个电介质薄膜设置在与过滤构件的谐振元件之间的间隙或过滤构件与输入/输出部之间的间隙相反的位置。 通过在电极之间施加电压,有效的介电常数在谐振元件之间的间隙中,或谐振元件与输入/输出部分之间的间隙被可变地控制,并且调整裙边特性和纹波。 此外,谐振元件的谐振频率,谐振元件之间的耦合以及谐振元件和输入/输出部分之间的耦合可以单独和独立地控制。
    • 17. 发明授权
    • Superconducting device
    • 超导装置
    • US5834794A
    • 1998-11-10
    • US848268
    • 1997-04-29
    • Hiroyuki FukeKazuo SaitohYouichi Enomoto
    • Hiroyuki FukeKazuo SaitohYouichi Enomoto
    • G01R33/035H01L39/22H01L39/24H03K19/195H01L29/06
    • H03K19/1952
    • Disclosed is a superconducting device comprising a logic SQUID and a readout SQUID magnetically coupled with the logic SQUID, which are fabricated using a single layer of an oxide high-temperature superconductor, wherein the logic SQUID comprising a superconducting loop constituted by a first superconducting line, a second superconducting line arranged to be parallel to the first superconducting line, third and fourth superconducting lines provided to connect the first and second superconducting lines, and two Josephson junctions formed in the third and fourth superconducting lines, and widths W.sub.1 and W.sub.2 of the first and second superconducting lines are larger than a distance d between them, the width W.sub.2 is larger than the width W.sub.1, and the widths W.sub.1 and W.sub.2 are larger than the widths W.sub.3 and W.sub.4 of the third and fourth superconducting lines.
    • 公开了一种超导装置,其包括逻辑SQUID和与逻辑SQUID磁耦合的读出SQUID,其使用单层氧化物高温超导体制造,其中包括由第一超导线构成的超导环路的逻辑SQUID, 布置成与第一超导线平行的第二超导线,设置成连接第一和第二超导线的第三和第四超导线以及形成在第三和第四超导线中的两个约瑟夫逊结,以及形成在第一和第二超导线中的第一和第四超导线的宽度W1和W2 并且第二超导线大于它们之间的距离d,宽度W2大于宽度W1,并且宽度W1和W2大于第三和第四超导线的宽度W3和宽度W4。