Electromagnetic baffle for printed circuit boards
    1.
    发明授权
    Electromagnetic baffle for printed circuit boards 有权
    印刷电路板电磁挡板

    公开(公告)号:US06775154B1

    公开(公告)日:2004-08-10

    申请号:US10417739

    申请日:2003-04-16

    IPC分类号: H05K900

    CPC分类号: H05K9/0026

    摘要: An electromagnetic baffle arrangement includes a lid (22) having a trough or air gap (30) in the side walls of each cavity (23) of lid (22). Conductive strips (28) are applied to a layer of printed circuit board (26) and each of the legs (31) of lid (22). Optionally, to eliminate circulation of electromagnetic signals within air gap (30) a grounded bolt (32) may be inserted aperiodically.

    摘要翻译: 电磁挡板装置包括在盖(22)的每个空腔(23)的侧壁中具有槽或气隙(30)的盖(22)。 导电条(28)被施加到印刷电路板(26)的层和盖(22)的每个腿部(31)。 可选地,为了消除气隙(30)内的电磁信号的循环,接地螺栓(32)可以非周期地插入。

    Power amplifier core
    2.
    发明授权
    Power amplifier core 有权
    功率放大器核心

    公开(公告)号:US06300835B1

    公开(公告)日:2001-10-09

    申请号:US09458286

    申请日:1999-12-10

    IPC分类号: H03F316

    摘要: A power amplifier core (40) for amplifying RF signals is provided. The power amplifier core (40) includes a first string of FET cells (46) for amplifying the RF signal. The FET cell string includes at least two FET cells (46) connected in series with an output port (48) of the amplifier core. A bias network (44) coupled between an amplifier core input port (42) and the FET cells (46) couples the RF signal to the FET cells (46). The bias network (44) includes a bias capacitor (50) and a resistor network. The bias capacitor (50) is coupled to the input port (42) for AC coupling the RF signal to an associated FET cell (46) in the FET cell string. The resistor network is coupled from the bias capacitor (50) to the associated FET cell (46) for providing a DC bias to the associated FET cell (46).

    摘要翻译: 提供了用于放大RF信号的功率放大器核心(40)。 功率放大器芯(40)包括用于放大RF信号的第一串FET单元(46)。 FET单元串包括与放大器芯的输出端口(48)串联连接的至少两个FET单元(46)。 耦合在放大器核心输入端口(42)和FET单元(46)之间的偏置网络(44)将RF信号耦合到FET单元(46)。 偏置网络(44)包括偏置电容器(50)和电阻器网络。 偏置电容器(50)耦合到输入端口(42),以将RF信号AC耦合到FET单元串中的相关联的FET单元(46)。 电阻网络从偏置电容器(50)耦合到相关联的FET单元(46),以向相关联的FET单元(46)提供DC偏置。

    Power amplifier having two-dimensional FET array
    3.
    发明授权
    Power amplifier having two-dimensional FET array 有权
    功率放大器具有二维FET阵列

    公开(公告)号:US06275111B1

    公开(公告)日:2001-08-14

    申请号:US09587969

    申请日:2000-06-06

    IPC分类号: H03F360

    CPC分类号: H03F3/602

    摘要: A two-dimensional FET array (102) within a Q-band power amplifier module is presented. Array (102) has a plurality of substantially identical one-dimensional FET arrays (106) substantially centered upon a primary axis (130) of two-dimensional array (106) substantially perpendicular to a propagation axis (110) of module (100). Each one-dimensional array (106) is formed of a plurality of FETs (128) substantially centered along a FET axis (134) substantially parallel to propagation axis (110). Each one-dimensional array (106) is proximate and coupled to each of an input bus (136) and an output bus (138), both oriented substantially parallel to propagation axis (110).

    摘要翻译: 提出了Q波段功率放大器模块内的二维FET阵列(102)。 阵列(102)具有基本上相对于基本上垂直于模块(100)的传播轴(110)的二维阵列(106)的主轴(130)居中的多个基本相同的一维FET阵列(106)。 每个一维阵列(106)由基本上平行于传播轴线(110)的FET轴(134)基本上居中的多个FET(128)形成。 每个一维阵列(106)接近并耦合到输入总线(136)和输出总线(138)中的每一个,两者均定向成基本上平行于传播轴线(110)。

    Broadband mixer circuit and method
    4.
    发明授权
    Broadband mixer circuit and method 失效
    宽带混频电路及方法

    公开(公告)号:US5339462A

    公开(公告)日:1994-08-16

    申请号:US787354

    申请日:1991-11-04

    摘要: A signal mixing apparatus comprising first and second four port signal splitting/combining networks having no relative phase shift between three ports and 180.degree. of phase shift between the remaining ports, coupled to a four port mixer element. The mixer element has two ports coupled to the first signal splitter/combiner network and having another two ports coupled to the second splitter/combiner, RF and LO signals input to the first splitter/combiner do not appear at the IF output from the second splitter/combiner or vice versa. The RF/IF signals cancel and the LO signal is trapped by a resonant circuit within the mixer. The RF and IF frequency bands may overlap.

    摘要翻译: 一种信号混合装置,包括耦合到四端口混频器元件的第一和第二四端口信号分离/组合网络,其在三个端口之间没有相对相移和在其余端口之间的180°相移。 混频器元件具有耦合到第一信号分离器/组合器网络并且具有耦合到第二分离器/组合器的另外两个端口的两个端口,输入到第一分离器/组合器的RF和LO信号不会出现在来自第二分离器 /组合器,反之亦然。 RF / IF信号消除,LO信号被混频器内的谐振电路捕获。 RF和IF频带可能重叠。

    High Q resonator circuit
    5.
    发明授权
    High Q resonator circuit 有权
    高Q谐振电路

    公开(公告)号:US06774737B1

    公开(公告)日:2004-08-10

    申请号:US10426482

    申请日:2003-04-30

    IPC分类号: H03B508

    摘要: A resonator circuit (10) has a pair of varactor diodes (13, 14), a capacitor (15), and a transformer (20) coupled in parallel with the capacitor and varactor diodes. Further, in order to provide a high frequency output an impedance inverter network (35, 36) is coupled to the transformer.

    摘要翻译: 谐振电路(10)具有与电容器和变容二极管并联耦合的一对变容二极管(13,14),电容器(15)和变压器(20)。 此外,为了提供高频输出,阻抗逆变器网络(35,36)耦合到变压器。

    High isolation microwave module
    6.
    发明授权
    High isolation microwave module 失效
    高隔离微波模块

    公开(公告)号:US5386204A

    公开(公告)日:1995-01-31

    申请号:US101165

    申请日:1993-08-03

    IPC分类号: H01P1/20 H05K9/00 H01P1/208

    CPC分类号: H05K9/0056 H01P1/20

    摘要: A high isolation microwave module includes a housing floor with mounting surfaces for placing microwave components and housing walls ending in housing wall ends coupled to and projecting from the housing floor. A lid including a lid plate and lid walls ending in lid wall ends projects from the lid plate. The lid walls extend toward the housing floor and the plurality of housing walls extend toward the lid plate but neither the lid wall ends nor the housing wall ends are coupled to the housing floor or lid plate, respectively. A plurality of cavities exist between the adjacent lid walls between the housing and the lid plate and a plurality of irises exist between immediately adjacent housing walls and corresponding lid walls. The irises and cavities act as a multi-section high pass filter to provide attenuation to a microwave signal passing through the module.

    摘要翻译: 高隔离微波模块包括壳体底板,其具有用于放置微波部件和壳体壁的安装表面,所述微波部件和壳体壁终止于耦合到壳体地板并从壳体地板突出的壳体壁端部。 包括盖板和盖壁终止的盖壁的盖从盖板突出。 盖壁朝向壳体底板延伸,并且多个壳体壁朝向盖板延伸,但是盖壁端部也没有将壳体壁端部分别连接到壳体底板或盖板。 在壳体和盖板之间的相邻盖壁之间存在多个空腔,并且在紧邻的壳体壁和对应的盖壁之间存在多个虹膜。 虹膜和空腔用作多段高通滤波器,以对通过模块的微波信号提供衰减。

    Broadband mixer with coplanar balun
    7.
    发明授权
    Broadband mixer with coplanar balun 失效
    宽带混频器,共面平衡 - 不平衡变压器

    公开(公告)号:US4355421A

    公开(公告)日:1982-10-19

    申请号:US213204

    申请日:1980-12-05

    申请人: Warren L. Seely

    发明人: Warren L. Seely

    IPC分类号: H03D7/14 H03D9/06 H04B1/26

    摘要: An improved broadband mixer includes a first balun (11) with a first signal port (12), a second balun (14) with a second signal port (15), a third balun (17) with a third signal port (18), and a frequency converter (19) coupled between the first, second, and baluns. The first balun means, which preferably receives an RF signal via said first signal port, includes two juxtaposed ground plane baluns 31 and 32 each having opposed, spaced, strip conductors in different planes. The second balun, which preferably receives an LO signal via the second signal port, has a coplanar balun (44) including three strip conductors in the same plane which in turn connects to two juxtaposed ground plane baluns (45 and 46) each having opposed, parallel spaced, strip conductors. The combination of the coplanar balun (44) with the two ground plane baluns (45 and 46) establishes signal polarities which merge end to end with the opposite ground plane baluns (31 and 32) to prevent signals from passing from one signal port to the opposite signal port without requiring cross-connections between the strip conductors in different planes opposite the ground plane baluns.

    摘要翻译: 改进的宽带混合器包括具有第一信号端口(12)的第一平衡 - 不平衡变换器(11),具有第二信号端口(15)的第二平衡 - 不平衡变换器(14),具有第三信号端口(18)的第三平衡 - 不平衡变换器(17) 和耦合在第一,第二和巴伦之间的变频器(19)。 优选地,经由所述第一信号端口接收RF信号的第一平衡 - 不平衡转换装置包括两个并置的接地平面不平衡变换器31和32,每个平衡 - 不平衡变换器在不同平面中具有相对的间隔开的条状导体。 优选地经由第二信号端口接收LO信号的第二平衡 - 不平衡转换器具有共面平衡不平衡变换器(44),该共平面平衡转换器包括在同一平面内的三个带状导体,该平行不平衡变换器又连接到两个并置的接地平面不平衡变压器(45和46) 平行间隔的带状导体。 共面平衡不平衡变换器(44)与两个接地平面不平衡变压器(45和46)的组合建立了信号极性,它们将端对端与相对的接地平面不平衡变换器(31和32)并入,以防止信号从一个信号端口传递到 相反的信号端口,而不需要在与接地平面不平衡转换器相对的不同平面中的条状导体之间的交叉连接。

    Integrated circuit having passive circuit elements
    9.
    发明授权
    Integrated circuit having passive circuit elements 失效
    具有无源电路元件的集成电路

    公开(公告)号:US5416356A

    公开(公告)日:1995-05-16

    申请号:US115833

    申请日:1993-09-03

    CPC分类号: H01L27/08

    摘要: An integrated circuit is formed from a first layer of conductive material (30) which is separated from a second layer of conductive material (39) by a layer of dielectric material (36). The first layer of conductive material (30) is patterned to form a first plate (32, 59) of a capacitor (22, 50, 62, 72). An electrical interconnect (33, 63) is formed within the first plate (32, 59), respectively. A via (37) is formed in the layer of dielectric material (36). A second layer of conductive material (39) is patterned to form a second plate (42, 56, 66, 76) of the capacitor (22, 50, 62, 72) and a planar spiral inductor (21, 51, 61, 71). The planar spiral inductor (21, 51, 61, 71) is surrounded by the second plate (42, 56, 66, 76) of the capacitor (22, 50, 62, 72).

    摘要翻译: 由第一导电材料层(30)形成集成电路,第一层由电介质材料层(36)与第二导电材料层(39)分开。 第一层导电材料(30)被图案化以形成电容器(22,50,62,72)的第一板(32,59)。 电互连(33,63)分别形成在第一板(32,59)内。 在电介质材料层(36)中形成通孔(37)。 将第二层导电材料(39)图案化以形成电容器(22,50,62,72)的第二板(42,56,66,76)和平面螺旋电感器(21,51,61,71) )。 平面螺旋电感器(21,51,61,71)由电容器(22,50,62,72)的第二板(42,56,66,76)包围。

    Broadband 180 degree hybrid
    10.
    发明授权
    Broadband 180 degree hybrid 失效
    宽带180度混合

    公开(公告)号:US5023576A

    公开(公告)日:1991-06-11

    申请号:US445307

    申请日:1989-12-04

    IPC分类号: H03H7/21 H03H7/48

    CPC分类号: H03H7/48 H03H7/21

    摘要: A broadband 180 degree hybrid having lumped or semi-lumped elements is comprised of a network of low and high pass filters. A 180 degree phase differential is obtained by splitting an input signal from a first input. A first portion of the split signal is passed through a low pass filter and a second portion is passed through a high pass filter. The phase differential is maintained at 180 degrees. A zero (0) degree phase differential is obtained by splitting an input signal from a second input and passing both portions through a pair of low pass filters or through a pair of high pass filters.

    摘要翻译: 具有集总或半集总元件的宽带180度混合器由低通滤波器和高通滤波器的网络组成。 通过分割来自第一输入的输入信号获得180度相位差。 分离信号的第一部分通过低通滤波器,第二部分通过高通滤波器。 相位差保持在180度。 通过分割来自第二输入的输入信号并通过两个部分通过一对低通滤波器或通过一对高通滤波器来获得零(0)度相位差。