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    High temperature superconducting structures and methods for high Q, reduced intermodulation structures
    3.
    发明申请
    High temperature superconducting structures and methods for high Q, reduced intermodulation structures 审中-公开
    高温超导结构和高Q值的方法，减少了互调结构

    公开(公告)号：US20080039333A1

    公开(公告)日：2008-02-14

    申请号：US11811647

    申请日：2007-06-11

    申请人： Balam Willemsen Cortes ,  Albert Cardona ,  Neal Fenzi ,  Roger Forse

    发明人： Balam Willemsen Cortes ,  Albert Cardona ,  Neal Fenzi ,  Roger Forse

    IPC分类号： H01P7/00

    CPC分类号： H01P7/082

    摘要： Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative to known structures achieve numerous desirable benefits, especially including the reduced intermodulation effects of earlier resonators. In one aspect of this invention, a spiral in, spiral out resonator is provided, characterized in that it has an odd number of long runs, at least equal to five long runs, where the long runs are connected by turns, and wherein there are at least two sequential turns of the same handedness, followed by at least two turns of the opposite handedness. In yet another aspect of this invention, it has been discovered that reducing the size of the input and output pads of HTS resonators increases the relative inductance compared to the capacitance. Yet another resonator structure is a spiral snake resonator having a terminal end disposed within the resonator. A wide in the middle structure and wide at peak current density resonator structures utilize enlarged width portions of the resonator in those areas where current density is largest. In yet another aspect of this invention, operation of resonators in high modes, above the fundamental mode, reduce peak current densities. Resonators operated in modes in which current in adjacent long runs are in the same direction further serve to reduce current densities, and intermodulation effects. Symmetric current structures and modes of operation are particularly advantageous where far field effects are compensated for.

    摘要翻译： 提供了用于形成有用的高温超导装置，特别是谐振器的新颖结构和方法。 导致相对于已知结构降低的峰值电流密度的结构实现了许多期望的益处，特别是包括较早谐振器的减少的互调效应。 在本发明的一个方面，提供一种螺旋形螺旋输出谐振器，其特征在于，其具有奇数个长行程，至少等于五个长行程，其中长行程轮流连接，并且其中存在 至少两个相同的手性的连续转弯，其次是至少两圈相反的手感。 在本发明的另一方面，已经发现，与电容相比，减小HTS谐振器的输入和输出焊盘的尺寸增加了相对电感。 另一种谐振器结构是具有设置在谐振器内的终端的螺旋形蛇形谐振器。 中间结构宽，峰值电流密度谐振器结构宽，在电流密度最大的区域中利用谐振器的扩大宽度部分。 在本发明的另一方面，高于基本模式的高模式的谐振器的操作降低了峰值电流密度。 在相邻长行中的电流处于相同方向的模式下操作的谐振器进一步用于降低电流密度和互调效应。 对称电流结构和操作模式在远场效应得到补偿时特别有利。

    LOW-LOSS TUNABLE RADIO FREQUENCY FILTER
    4.
    发明申请
    LOW-LOSS TUNABLE RADIO FREQUENCY FILTER 有权
    低损失无线电频率滤波器

    公开(公告)号：US20070247261A1

    公开(公告)日：2007-10-25

    申请号：US11561333

    申请日：2006-11-17

    申请人： Genichi Tsuzuki ,  Balam Willemsen

    发明人： Genichi Tsuzuki ,  Balam Willemsen

    IPC分类号： H01P1/20 ,  H03H7/12

    CPC分类号： H01P1/20336 ,  H01P1/20 ,  H03H7/0153 ,  H03H7/12 ,  H03H7/1791 ,  H03H2210/012

    摘要： A tunable radio frequency (RF) filter is provided. The RF filter comprises a signal transmission path having an input and an output, a plurality of resonant elements disposed along the signal transmission path between the input and the output, and a plurality of non-resonant elements coupling the resonant elements together. The resonant elements are coupled together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and at least one sub-band between the transmission zeroes. The non-resonant elements comprise at least one variable non-resonant element for selectively introducing at least one reflection zero within the stop band to create a pass band in one of the sub-bands(s). The variable non-resonant element(s) may be configured for displacing the reflection zero(es) along the stop band to selectively move the pass band within the one sub-band or within selected ones of the sub-bands.

    摘要翻译： 提供可调谐射频（RF）滤波器。 RF滤波器包括具有输入和输出的信号传输路径，沿着输入和输出之间的信号传输路径设置的多个谐振元件以及将谐振元件耦合在一起的多个非谐振元件。 谐振元件耦合在一起以形成具有对应于谐振元件的相应频率的多个传输零点的阻挡带，以及传输零点之间的至少一个子带。 非谐振元件包括至少一个可变非谐振元件，用于选择性地在阻带内引入至少一个反射零点，以在一个子带中产生通带。 可变非共振元件可以被配置为沿着阻带移位反射零点，以选择性地移动一个子带内的通带或者在所选择的子带内的通带。

    Systems and methods for tuning filters
    8.
    发明申请
    Systems and methods for tuning filters 有权

    公开(公告)号：US20060202775A1

    公开(公告)日：2006-09-14

    申请号：US11289463

    申请日：2005-11-30

    申请人： Genichi Tsuzuki ,  Matthew Hernandez ,  Balam Willemsen

    发明人： Genichi Tsuzuki ,  Matthew Hernandez ,  Balam Willemsen

    IPC分类号： H04B3/04

    CPC分类号： H04B3/04

    摘要： Methods, systems and apparatus for filter design, analysis and adjustment are provided. Various embodiments may include, for example, methods, systems and apparatus for electric signal filter tuning. Embodiments may also include design techniques for planar electric signal (e.g., RF signals) filter tuning. In at least an embodiment of the present invention a technique for filter tuning is provided which may include parameter extraction, optimization and tuning recipes techniques that may require only a single permanent filter tuning. In at least another embodiment a system and method of filter design, analysis and adjustment according to the present invention includes use of tuning that may be set using a mechanical scribing tool or a laser trimming device. In at least one other embodiment, a filter tuning technique may be provided and include providing trimming tabs on a resonator edge that may be disconnected or trimmed for filter tuning.