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公开(公告)号：US20110304422A1
公开(公告)日：2011-12-15
申请号：US12797810
申请日：2010-06-10
CPC分类号： H01F27/2804 , G01R33/34007 , G01R33/3415 , G01R33/3628 , G01R33/365 , H01F19/04 , H01F21/12
摘要： A transformer assembly includes a substrate having a first surface and an opposing second surface, a first spiral wound inductive coil formed on the first surface, and a second spiral wound inductive coil formed on the first surface; the first and second spiral wound inductive coils forming a double spiral arrangement on the first surface such that the first coil is inductively coupled to the second coil. An RF coil including the transformer assembly and a method of fabricating the transformer assembly are also described.
摘要翻译： 变压器组件包括具有第一表面和相对的第二表面的基板，形成在第一表面上的第一螺旋卷绕感应线圈和形成在第一表面上的第二螺旋卷绕感应线圈; 所述第一和第二螺旋卷绕感应线圈在所述第一表面上形成双螺旋布置，使得所述第一线圈感应耦合到所述第二线圈。 还描述了包括变压器组件的RF线圈和制造变压器组件的方法。
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公开(公告)号：US08674799B2
公开(公告)日：2014-03-18
申请号：US12797810
申请日：2010-06-10
CPC分类号： H01F27/2804 , G01R33/34007 , G01R33/3415 , G01R33/3628 , G01R33/365 , H01F19/04 , H01F21/12
摘要： A transformer assembly includes a substrate having a first surface and an opposing second surface, a first spiral wound inductive coil formed on the first surface, and a second spiral wound inductive coil formed on the first surface; the first and second spiral wound inductive coils forming a double spiral arrangement on the first surface such that the first coil is inductively coupled to the second coil. An RF coil including the transformer assembly and a method of fabricating the transformer assembly are also described.
摘要翻译： 变压器组件包括具有第一表面和相对的第二表面的基板，形成在第一表面上的第一螺旋卷绕感应线圈和形成在第一表面上的第二螺旋卷绕感应线圈; 所述第一和第二螺旋卷绕感应线圈在所述第一表面上形成双螺旋布置，使得所述第一线圈感应耦合到所述第二线圈。 还描述了包括变压器组件的RF线圈和制造变压器组件的方法。
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公开(公告)号：US08928450B2
公开(公告)日：2015-01-06
申请号：US13206373
申请日：2011-08-09
IPC分类号： H01F5/00 , H01F27/28 , G01R33/36 , H01F19/04 , G01R33/3415
CPC分类号： H01F27/2804 , G01R33/3415 , G01R33/365 , H01F19/04 , Y10T29/4902
摘要： A transformer assembly includes a substrate having a first surface and an opposing second surface, a first spiral wound inductive coil formed on the first surface, a second spiral wound inductive coil formed on the first surface, and a third spiral wound inductive coil formed on the first surface, the first, second and third spiral wound inductive coils forming a triple spiral arrangement on the first surface such that the first coil is inductively coupled to the second coil and the third coil. An RF coil including the transformer assembly and a method of fabricating the transformer assembly are also described.
摘要翻译： 变压器组件包括具有第一表面和相对的第二表面的基板，形成在第一表面上的第一螺旋卷绕感应线圈，形成在第一表面上的第二螺旋卷绕感应线圈和形成在第一表面上的第三螺旋卷绕感应线圈 第一表面，第一，第二和第三螺旋卷绕感应线圈在第一表面上形成三重螺旋布置，使得第一线圈感应耦合到第二线圈和第三线圈。 还描述了包括变压器组件的RF线圈和制造变压器组件的方法。
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公开(公告)号：US20110267165A1
公开(公告)日：2011-11-03
申请号：US12772720
申请日：2010-05-03
申请人： Victor Taracila , Fraser Robb , Aleksey Zemskov , Vijayanand Alagappan , Miguel Navarro , Robert Minnich
发明人： Victor Taracila , Fraser Robb , Aleksey Zemskov , Vijayanand Alagappan , Miguel Navarro , Robert Minnich
CPC分类号： H01F29/025 , G01R33/34007 , G01R33/3628 , Y10T29/49071
摘要： An inductor assembly includes a substrate having a first surface and an opposing second surface, a first spiral electrical conductor formed on the first surface, a second spiral electrical conductor formed on the second surface, at least one opening extending through the first and second surfaces, and a metallic pin configured to be inserted in the opening, the pin coupling the first conductor to the second conductor. An RF coil including the inductor assembly and a method of fabricating an inductor assembly are also described.
摘要翻译： 电感器组件包括具有第一表面和相对的第二表面的基板，形成在第一表面上的第一螺旋形电导体，形成在第二表面上的第二螺旋导电导体，延伸穿过第一和第二表面的至少一个开口， 以及被配置为插入所述开口中的金属销，所述销将所述第一导体连接到所述第二导体。 还描述了包括电感器组件的RF线圈和制造电感器组件的方法。
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公开(公告)号：US20110267061A1
公开(公告)日：2011-11-03
申请号：US12772753
申请日：2010-05-03
CPC分类号： G01R33/3685 , H01P5/10 , Y10T29/4902
摘要： A balun assembly includes a body portion having an opening extending therethrough, the opening sized to receive at least one radio-frequency (RF) cable therethrough, the RF cable transmitting a signal therethrough a signal having a wavelength, and a balun disposed within the body portion, the balun being folded to form a plurality of layers, the combined length of the layers being approximately equal to a quarter wavelength of the signal transmitted through the RF cable. A method of fabricating a balun assembly and an MRI system including a balun are also provided.
摘要翻译： 平衡 - 不平衡变压器组件包括具有延伸穿过其中的开口的主体部分，该开口的尺寸设置成接收至少一个射频（RF）电缆穿过其中，RF电缆通过其中的信号传输具有波长的信号，以及平衡 - 不平衡转换器 平衡不平衡变换器被折叠以形成多个层，层的组合长度近似等于通过RF电缆传输的信号的四分之一波长。 还提供了一种制造平衡 - 不平衡变换组件和包括平衡 - 不平衡变换器的MRI系统的方法。
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公开(公告)号：US08427159B2
公开(公告)日：2013-04-23
申请号：US12772753
申请日：2010-05-03
IPC分类号： G01V3/00
CPC分类号： G01R33/3685 , H01P5/10 , Y10T29/4902
摘要： A balun assembly includes a body portion having an opening extending therethrough, the opening sized to receive at least one radio-frequency (RF) cable therethrough, the RF cable transmitting a signal therethrough a signal having a wavelength, and a balun disposed within the body portion, the balun being folded to form a plurality of layers, the combined length of the layers being approximately equal to a quarter wavelength of the signal transmitted through the RF cable. A method of fabricating a balun assembly and an MRI system including a balun are also provided.
摘要翻译： 平衡 - 不平衡变压器组件包括具有延伸穿过其中的开口的主体部分，该开口的尺寸设置成接收至少一个射频（RF）电缆穿过其中，RF电缆通过其中的信号传输具有波长的信号，以及平衡 - 不平衡转换器 平衡不平衡变换器被折叠以形成多个层，层的组合长度近似等于通过RF电缆传输的信号的四分之一波长。 还提供了一种制造平衡 - 不平衡变换组件和包括平衡 - 不平衡变换器的MRI系统的方法。
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公开(公告)号：US07973614B2
公开(公告)日：2011-07-05
申请号：US12478549
申请日：2009-06-04
CPC分类号： H03H7/38 , G01R33/365 , G01R33/3685 , H03H7/42 , H03H2001/0085 , Y10T29/4902
摘要： An apparatus and method for reducing stray magnetic fields include a decoupling circuit includes a balun that comprises a transmission line. The transmission line includes a first spiral positioned substantially parallel to a first plane, the first spiral emanating from a inner portion of the first spiral in a first spiral direction. The transmission line also includes a second spiral positioned substantially parallel to the first plane, the second spiral emanating from a inner portion of the second spiral in the first spiral direction, wherein the inner portion of the first spiral is electrically coupled to the inner portion of the second spiral, and wherein the transmission line comprises a signal line and a ground line. The balun further comprises a first capacitor electrically coupled to the transmission line.
摘要翻译： 用于减少杂散磁场的装置和方法包括：去耦电路，包括包括传输线的平衡 - 不平衡变换器。 传输线包括基本上平行于第一平面定位的第一螺旋，第一螺旋从第一螺旋的内部沿第一螺旋方向发出。 传输线还包括基本上平行于第一平面定位的第二螺旋线，第二螺旋线在第一螺旋方向上从第二螺旋形的内部部分发出，其中第一螺旋形的内部部分电耦合到 第二螺旋，并且其中传输线包括信号线和接地线。 平衡 - 不平衡变换器还包括电耦合到传输线的第一电容器。
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公开(公告)号：US20100308934A1
公开(公告)日：2010-12-09
申请号：US12478549
申请日：2009-06-04
CPC分类号： H03H7/38 , G01R33/365 , G01R33/3685 , H03H7/42 , H03H2001/0085 , Y10T29/4902
摘要： An apparatus and method for reducing stray magnetic fields include a decoupling circuit includes a balun that comprises a transmission line. The transmission line includes a first spiral positioned substantially parallel to a first plane, the first spiral emanating from a inner portion of the first spiral in a first spiral direction. The transmission line also includes a second spiral positioned substantially parallel to the first plane, the second spiral emanating from a inner portion of the second spiral in the first spiral direction, wherein the inner portion of the first spiral is electrically coupled to the inner portion of the second spiral, and wherein the transmission line comprises a signal line and a ground line. The balun further comprises a first capacitor electrically coupled to the transmission line.
摘要翻译： 用于减少杂散磁场的装置和方法包括：去耦电路，包括包括传输线的平衡 - 不平衡变换器。 传输线包括基本上平行于第一平面定位的第一螺旋，第一螺旋从第一螺旋的内部沿第一螺旋方向发出。 传输线还包括基本上平行于第一平面定位的第二螺旋线，第二螺旋线在第一螺旋方向上从第二螺旋形的内部部分发出，其中第一螺旋形的内部部分电耦合到 第二螺旋，并且其中传输线包括信号线和接地线。 平衡 - 不平衡变换器还包括电耦合到传输线的第一电容器。
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公开(公告)号：US08598878B2
公开(公告)日：2013-12-03
申请号：US12834287
申请日：2010-07-12
IPC分类号： G01V3/00
CPC分类号： G01R33/3628 , G01R33/341 , G01R33/3635
摘要： An inductor assembly includes an electrical conductor having a first end and an opposite second end, and a plurality of turns, each turn having a first lobe and a second lobe, the electrical conductor being formed into a lemniscate shape. A Radio Frequency (RF) coil including the lemniscate shaped inductor and a Magnetic Resonance Imaging (MRI) system including the lemniscate shaped inductor are also described herein.
摘要翻译： 电感器组件包括具有第一端和相对的第二端的电导体，以及多个匝，每匝具有第一凸角和第二凸角，所述电导体形成为混杂形状。 本文还描述了包括复杂成形电感器的射频（RF）线圈和包括复杂形状电感器的磁共振成像（MRI）系统。
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公开(公告)号：US08179137B2
公开(公告)日：2012-05-15
申请号：US12416014
申请日：2009-03-31
申请人： Limin Feng , Dan Kenrick Spence , Gene Laurich , Aleksey Zemskov , Kolman Juhasz
发明人： Limin Feng , Dan Kenrick Spence , Gene Laurich , Aleksey Zemskov , Kolman Juhasz
IPC分类号： G01V3/00
摘要： Systems and devices for transmitting radio frequency signals to and from radio frequency coils in magnetic resonance imaging systems are provided. In one embodiment, a balun for blocking induced radio frequency current on ground conductors of a multi-layer signal carrier includes first and second insulative elements disposed on first and second sides of the signal carrier, respectively, a conductive layer partially surrounding ends of each insulative element with a central region of each insulative element not surrounded by the respective conductive layer, first and second capacitive circuits coupled to the conductive layers of each respective insulative element in the central region thereof, vias extending through the signal carrier, and conductive material disposed in the vias electrically coupling a conductive layer on respective ends of the first and second elements with one another and with the ground conductors.
摘要翻译： 提供了用于在磁共振成像系统中向射频线圈发射射频信号的系统和装置。 在一个实施例中，用于在多层信号载体的接地导体上阻断感应射频电流的平衡 - 不平衡转换器分别包括设置在信号载体的第一和第二侧上的第一和第二绝缘元件，部分地围绕每个绝缘的端部的导电层 元件，每个绝缘元件的中心区域不被相应的导电层包围，第一和第二电容电路耦合到其中心区域中的每个相应绝缘元件的导电层，延伸穿过信号载体的通孔，以及布置在 通孔将第一和第二元件的相应端部上的导电层彼此电连接并且与接地导体电耦合。
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