Dual channel microwave transmit/receive module for an active aperture of a radar system
    1.
    发明授权
    Dual channel microwave transmit/receive module for an active aperture of a radar system 有权
    双通道微波发射/接收模块,用于雷达系统的主动孔径

    公开(公告)号:US06278400B1

    公开(公告)日:2001-08-21

    申请号:US09450905

    申请日:1999-11-29

    IPC分类号: G01S728

    摘要: Two discrete transmit/receive (T/R) channels are implemented in a single common T/R module package having the capability of providing combined functions, control and power conditioning while utilizing a single multi-cavity, multi-layer substrate comprised of high or low temperature cofired ceramic layers. The ceramic layers have outer surfaces including respective metallization patterns of ground planes and stripline conductors as well as feedthroughs or vertical vias formed therein for providing three dimensional routing of both shielded RF and DC power and logic control signals so as to configure, among other things, a pair of RF manifold signal couplers which are embedded in the substrate and which transition to a multi-pin blind mate press-on RF connector assembly at the front end of the package. DC and logic input/output control signals are connected to a plurality of active circuit components including application specific integrated circuits (ASICs) and monolithic microwave integrated circuit chips (MMICs) via spring contact pads at the rear of the package. An RF connector assembly for coupling transmit and receive signals to and from the module is located at the front of the package. The RF transmit power amplifiers which generate most of the heat in the module package are located in a first pair of cavities formed in the substrate directly behind the RF connector assembly and are mounted directly on a pair of flat heat sink plates which are secured to the bottom of the substrate and acts as a thermal interface to an external heat exchanger such as a cold plate. A second pair of cavities in which are located the RF receive signal amplifiers and their respective receiver protector elements, is located beside the first pair of cavities directly behind the RF connector for reducing RF signal loss.

    摘要翻译: 在单个公共T / R模块封装中实现两个离散的发送/接收(T / R)信道,其具有提供组合功能,控制和功率调节的能力,同时利用单个多腔多层衬底,其包括高或 低温共烧陶瓷层。 陶瓷层具有包括接地面和带状线导体的相应金属化图案以及形成在其中的馈通或垂直通孔的外表面,用于提供屏蔽RF和DC电力和逻辑控制信号两者的三维布线,以便除其他外, 一对RF歧管信号耦合器,其嵌入在衬底中并且转变到封装前端处的多引脚盲配合压接RF连接器组件。 DC和逻辑输入/输出控制信号通过封装后部的弹簧接触焊盘连接到包括专用集成电路(ASIC)和单片微波集成电路芯片(MMIC)的多个有源电路部件。 用于将模块的发送和接收信号耦合到RF模块的RF连接器组件位于封装的前部。 在模块封装中产生大部分热量的RF发射功率放大器位于直接位于RF连接器组件后面的衬底中形成的第一对空腔中,并直接安装在一对平坦的散热板上, 并且用作与诸如冷板之类的外部热交换器的热界面。 位于RF接收信号放大器及其各自的接收器保护器元件的第二对空腔位于RF连接器正后方的第一对空腔旁边,用于减少RF信号损失。

    Dual channel microwave transmit/receive module for an active aperture of
a radar system
    2.
    发明授权
    Dual channel microwave transmit/receive module for an active aperture of a radar system 失效
    双通道微波发射/接收模块,用于雷达系统的主动孔径

    公开(公告)号:US6094161A

    公开(公告)日:2000-07-25

    申请号:US456407

    申请日:1999-12-08

    摘要: Two discrete transmit/receive (T/R) channels are implemented in a single common T/R module package having the capability of providing combined functions, control and power conditioning while utilizing a single multi-cavity, multi-layer substrate comprised of high temperature cofired ceramic (HTCC) layers. The ceramic layers have outer surfaces including respective metallization patterns of ground planes and stripline conductors as well as feedthroughs or vertical vias formed therein for providing three dimensional routing of both shielded RF and DC power and logic control signals so as to configure, among other things, a pair of RF manifold signal couplers which are embedded in the substrate and which transition to a multi-pin blind mate press-on RF connector assembly at the front end of the package. DC and logic input/output control signals are connected to a plurality of active circuit components including application specific integrated circuits (ASICs) and monolithic microwave integrated circuit chips (MMICs) via spring contact pads at the rear of the package. The MMICs which generate substantially all of the heat are located in multi-level cavities formed in the substrate and are bonded directly to a generally flat a heat sink plate which is secured to the bottom of the substrate and acts as a thermal interface to an external heat exchanger such as a cold plate. DC power conditioning is also provided by a capacitive bank type of energy storage subassembly externally attached to the rear of the module package for supplying supplementary power to the module during peak power operation. The T/R module is one module of an array of like T/R modules coupled to an active aperture of a radar system.

    摘要翻译: 两个离散的发射/接收(T / R)信道在单个公共T / R模块封装中实现,其具有提供组合功能,控制和功率调节的能力,同时利用单个多腔多层衬底,其包括高温 共烧陶瓷(HTCC)层。 陶瓷层具有包括接地面和带状线导体的相应金属化图案以及形成在其中的馈通或垂直通孔的外表面,用于提供屏蔽RF和DC电力和逻辑控制信号两者的三维布线,以便除其他外, 一对RF歧管信号耦合器,其嵌入在衬底中并且转变到封装前端处的多引脚盲配合压接RF连接器组件。 DC和逻辑输入/输出控制信号通过封装后部的弹簧接触焊盘连接到包括专用集成电路(ASIC)和单片微波集成电路芯片(MMIC)的多个有源电路部件。 产生基本上所有热量的MMIC位于形成在基板中的多层空腔中,并且直接结合到大致平坦的散热板上,该散热板固定到基板的底部并用作与外部的热接口 换热器如冷板。 直流功率调节也由外部连接到模块封装后部的电容式储能型存储子组件提供,用于在峰值功率操作期间向模块提供补充功率。 T / R模块是耦合到雷达系统的有效孔径的类似T / R模块的阵列的一个模块。

    Common-mode insensitive sampler
    6.
    发明授权
    Common-mode insensitive sampler 有权
    共模不敏感取样器

    公开(公告)号:US07786767B2

    公开(公告)日:2010-08-31

    申请号:US12011998

    申请日:2008-01-29

    IPC分类号: G11C27/02

    CPC分类号: H03M1/0636 H03M1/1245

    摘要: An approach to rejecting input common-mode voltage variations in a sampler/converter that avoids the use of a differential amplifier in the signal path, and without introducing added distortion or noise. In one embodiment, the input common-mode variations are sensed on a pair of matched resistors that straddle the common mode analog inputs, on a node ‘Vcmi’. An alternative, switched-capacitor-based sensing scheme is also possible. Using this measured Vcmi, adjustments are then made to the rest of the sampler/converter to take out any variations observed at Vcmi.

    摘要翻译: 拒绝采样器/转换器中的输入共模电压变化的方法,其避免在信号路径中使用差分放大器,并且不引入附加的失真或噪声。 在一个实施例中,在节点“Vcmi”上跨越共模模拟输入的一对匹配电阻上感测输入共模变化。 一种替代的基于开关电容器的感测方案也是可能的。 使用该测量的Vcmi,然后对采样器/转换器的其余部分进行调整,以取出在Vcmi处观察到的任何变化。

    Common-mode insensitive sampler
    7.
    发明申请
    Common-mode insensitive sampler 有权
    共模不敏感取样器

    公开(公告)号:US20080186061A1

    公开(公告)日:2008-08-07

    申请号:US12011998

    申请日:2008-01-29

    IPC分类号: G11C27/02

    CPC分类号: H03M1/0636 H03M1/1245

    摘要: An approach to rejecting input common-mode voltage variations in a sampler/converter that avoids the use of a differential amplifier in the signal path, and without introducing added distortion or noise. In one embodiment, the input common-mode variations are sensed on a pair of matched resistors that straddle the common mode analog inputs, on a node ‘Vcmi’. An alternative, switched-capacitor-based sensing scheme is also possible. Using this measured Vcmi, adjustments are then made to the rest of the sampler/converter to take out any variations observed at Vcmi.

    摘要翻译: 拒绝采样器/转换器中的输入共模电压变化的方法,其避免在信号路径中使用差分放大器,并且不引入附加的失真或噪声。 在一个实施例中,在节点“Vcmi”上跨越共模模拟输入的一对匹配电阻上感测输入共模变化。 一种替代的基于开关电容器的感测方案也是可能的。 使用该测量的Vcmi,然后对采样器/转换器的其余部分进行调整,以取出在Vcmi处观察到的任何变化。

    Method for scraping cellular material from tissue
    8.
    发明授权
    Method for scraping cellular material from tissue 有权
    从组织中刮除细胞材料的方法

    公开(公告)号:US06890309B2

    公开(公告)日:2005-05-10

    申请号:US10708712

    申请日:2004-03-19

    申请人: John S. Fisher

    发明人: John S. Fisher

    IPC分类号: A61B10/00 A61B10/02 A61B10/04

    摘要: A dual action biopsy needle scrapes tissue of cellular thickness from a lesion during forward and rearward reciprocations of the needle along its longitudinal axis of symmetry. A first sharp edge, formed by a beveled distal end of the needle, scrapes tissue during proximal-to-distal travel of the needle. A second sharp edge is provided by a transversely disposed slot formed in the needle near the first sharp edge. The second sharp edge scrapes tissue during distal-to-proximal travel of the needle. In a first embodiment, the second sharp edge is coincident with an exterior surface of the needle. In a second embodiment, the second sharp edge is elevated with respect to the exterior surface and in a third embodiment the second sharp edge is recessed. Additional embodiments include a second slot, a channel, and a hinge for enabling pivotal movement of the second and third sharp edges.

    摘要翻译: 双针活检针在针沿其纵向对称轴的向前和向后往复运动期间从损伤处刮去细胞厚度的组织。 由针的斜面远端形成的第一锋利边缘在针的近端到远端行进期间刮擦组织。 第二锋利边缘由靠近第一锋利边缘的针中形成的横向设置的狭槽提供。 第二个锋利的边缘在针的远端到近端行进期间刮擦组织。 在第一实施例中,第二锋利边缘与针的外表面重合。 在第二实施例中,第二锋利边缘相对于外表面升高,在第三实施例中,第二锋利边缘是凹进的。 另外的实施例包括用于使得第二和第三锋利边缘能够枢转运动的第二槽,通道和铰链。

    Emboli capturing device
    9.
    发明授权
    Emboli capturing device 有权
    Emboli拍摄装置

    公开(公告)号:US06530940B2

    公开(公告)日:2003-03-11

    申请号:US09837792

    申请日:2001-04-18

    申请人: John S. Fisher

    发明人: John S. Fisher

    IPC分类号: A62M2900

    摘要: A balloon angioplasty apparatus includes a guide wire, a balloon catheter, and a guide catheter. The balloon catheter has slots formed in it to define a plurality of elongate members between the slots. A joint is formed at the proximal, distal, and mid-point of each elongate member. Displacing the proximal and distal joints toward one another causes the respective middle joints to displace radially outwardly, and radial inward travel of the middle joints is caused by increasing the distance between the proximal and distal joints. A mesh that captures emboli overlies the jointed members and opens and closes with them. The guide catheter is used to close the joined members and the emboli-capturing mesh at the conclusion of the angioplasty procedure. In a second embodiment, the jointed members are formed in a delivery catheter. In a third embodiment, the jointed members are formed in a guide wire.

    摘要翻译: 球囊血管成形术装置包括导丝,球囊导管和引导导管。 气囊导管具有形成在其中的槽,以在槽之间限定多个细长构件。 在每个细长构件的近端,远端和中点处形成接头。 将近端和远端关节朝向彼此移动导致相应的中间关节径向向外移动,并且通过增加近端和远端关节之间的距离而引起中间关节的径向向内移动。 捕获栓塞的网格覆盖连接的构件,并与它们打开和关闭。 引导导管用于在血管成形术程序结束时关闭连接的构件和栓塞捕获网。 在第二实施例中,接合构件形成在输送导管中。 在第三实施例中,接合构件形成为导丝。

    Bioabsorable markers for use in biopsy procedures
    10.
    发明授权
    Bioabsorable markers for use in biopsy procedures 有权
    用于活检程序的生物可吸收标记物

    公开(公告)号:US06350244B1

    公开(公告)日:2002-02-26

    申请号:US09507052

    申请日:2000-02-21

    申请人: John S. Fisher

    发明人: John S. Fisher

    IPC分类号: A61B1000

    摘要: A bioabsorbable marker is placed in soft tissue such as breast tissue near a lesion during a biopsy procedure. If tests prove the lesion to be malignant, the marker indicates the location of the lesion and the marker is removed surgically together with the lesion. If tests prove the lesion to be benign, there is no need to surgically remove the marker due to its bioabsorbability. One or more markers may be carried in an elongate, flexible marker carrier that is ensheathed within an elongate, flexible outer sheath. The flexible outer sheath is slidingly introduced into the proximal end of a biopsy needle until its distal free end protrudes from a port formed in the distal end of the biopsy needle. Retraction of the outer sheath relative to the marker carrier then exposes the marker carrier. The markers exit the marker carrier under their own inherent bias or an auxiliary bias is employed to eject them from the marker carrier. In a first embodiment, the bioabsorbable markers are hollow spheres made of polylactite acid. They are filled with iodine or other radiopaque material so that they are visible under X-rays and/or ultrasound. The radiopaque material is also bioabsorbable. In an additional embodiment, the hollow spheres are filled with an easily visible dye so that, when punctured, they provide a visible indication of a lesion's location. In another embodiment, they are filled with radioactive material and are inserted for therapeutic purposes in a lesion known to be malignant. Another embodiment provides solid markers, formed by pre-mixing together a radiopaque material and a bioabsorbable material. The solid markers may also include dyes and radioactive materials. In all embodiments, the markers may be spherical, cubical, pyramidal, pentagonal, or any other predetermined shape.

    摘要翻译: 在活组织检查过程中,将生物可吸收标记置于软组织如乳腺组织附近的病变处。 如果测试证明病变是恶性的,则标记表示病变的位置,并且与病变一起手术除去标记。 如果测试证明病变是良性的,则由于其生物吸收性,不需要手术除去标记物。 一个或多个标记可以被携带在细长的,柔性的标记载体中,所述标记载体在细长的柔性外鞘内接合。 柔性外鞘被滑动地引入活检针的近端,直到其远端自由端从形成在活检针的远端的端口突出。 外鞘相对于标记载体的缩回然后露出标记物载体。 标记在它们自己的固有偏压下离开标记载体,或者使用辅助偏压将其从标记载体中排出。 在第一实施方案中,生物可吸收标记物是由聚乳酸制成的中空球体。 它们被碘或其他不透射线的材料填充,使得它们在X射线和/或超声下是可见的。 不透射线的材料也是生物可吸收的。 在另外的实施方案中,中空球填充有容易看到的染料,使得当被刺穿时,它们提供病变位置的可见指示。 在另一个实施方案中,它们用放射性物质填充,并且在已知为恶性的病变中插入用于治疗目的。 另一个实施方案提供通过将不透射线材料和生物可吸收材料预混合在一起形成的固体标记物。 固体标记物还可以包括染料和放射性物质。 在所有实施方案中,标记可以是球形,立方体,金字塔形,五边形或任何其它预定形状。