Passive 180 degree broadband MMIC hybrid
    11.
    发明授权
    Passive 180 degree broadband MMIC hybrid 失效
    被动180度宽带MMIC混合

    公开(公告)号:US4992761A

    公开(公告)日:1991-02-12

    申请号:US453204

    申请日:1989-12-26

    IPC分类号: H03H7/48

    CPC分类号: H03H7/48

    摘要: A passive 180 degree MMIC (monolithic microwave integrated circuit) hybrid is developed which yields broad band widths, decreases the circuit surface area to increase production yield, and is compatible with GaAs (gallium arsenide) media used in MMIC circuits. The passive 180 degree MMIC hybrid comprises a in-phase combiner coupled to a delay transmission line through a plurality of adjusting capacitors. The coupling points of the in-phase combiner and the delay transmission line are further coupled to respective 180 degree hybrid outputs. A 0/180 input is coupled in common to the delay transmission line. The 90 degree hybrid comprises a plurality of transmission lines coupled to a 0/0 input of the 180 degree hybrid.

    摘要翻译: 开发了无源180度MMIC(单片微波集成电路)混合器,其产生宽带宽,减小电路表面积以提高产量,并且与MMIC电路中使用的GaAs(砷化镓)介质兼容。 无源180度MMIC混合器包括通过多个调整电容器耦合到延迟传输线的同相组合器。 同相组合器和延迟传输线的耦合点进一步耦合到相应的180度混合输出。 0/180输入共同连接到延迟传输线。 90度混合动力包括耦合到180度混合动力的0/0输入的多条传输线。

    90 Degree broadband MMIC hybrid
    12.
    发明授权
    90 Degree broadband MMIC hybrid 失效
    90度宽带MMIC混合

    公开(公告)号:US4893098A

    公开(公告)日:1990-01-09

    申请号:US280094

    申请日:1988-12-05

    IPC分类号: H01P5/18

    CPC分类号: H01P5/18

    摘要: A 90 degree hybrid is contemplated having three parallel signal paths, one of the signal paths is a central signal path which provides direct impedence to ground. The other two signal paths are capacitively coupled to the central signal path to provide a second impedence. Each signal path incorporates at least one inductor coupled in series along each of the signal paths. The signal paths are capacitively coupled to each other at each end of the inductors. To increase the bandwidth, additional hybrids are coupled in series, with each hybrid forming a section of the broadband hybrid.

    摘要翻译: 考虑到具有三个并行信号路径的90度混合,信号路径之一是向地面提供直接阻抗的中心信号路径。 其他两个信号路径电容耦合到中心信号路径以提供第二阻抗。 每个信号路径包含沿着每个信号路径串联耦合的至少一个电感器。 信号路径在电感器的每一端电容耦合。 为了增加带宽,另外的混合器串联耦合,每个混合组成宽带混合的一部分。

    Electromagnetic baffle for printed circuit boards
    13.
    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
    14.
    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
    15.
    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)。

    High Q resonator circuit
    16.
    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
    17.
    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
    18.
    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。

    Dielectric resonator oscillator and methods of assembly therefor
    19.
    发明授权
    Dielectric resonator oscillator and methods of assembly therefor 有权
    介质谐振器及其组装方法

    公开(公告)号:US06538536B1

    公开(公告)日:2003-03-25

    申请号:US09672230

    申请日:2000-09-27

    IPC分类号: H01P710

    CPC分类号: H01P7/10 H01P1/00

    摘要: A dielectric resonator oscillator (DRO) (200, FIG. 2; 600, FIG. 6; 900, FIG. 9) includes a dielectric resonator (202, 602, 902) that is held in a fixed position with respect to the housing lid (206, 606, 906). In one embodiment, the resonator is attached to the housing lid using one or more support legs (208). In another embodiment, the resonator is attached to the housing lid using a ring structure (608). In still another embodiment, the resonator is attached to the lid and housing (904) using a lid tuner (914) and lid pedestal (908), and a housing tuner (915) and housing pedestal (909). Resonator positioning within the DRO cavity (222, 622, 922) is simplified by accurately aligning and attaching the support structure to the resonator.

    摘要翻译: 介质谐振器(DRO)(图2中的200,图6;图9的900,图9)包括相对于壳体盖保持在固定位置的介质谐振器(202,602,902) (206,606,906)。 在一个实施例中,谐振器使用一个或多个支撑腿(208)附接到壳体盖。 在另一个实施例中,谐振器使用环形结构(608)附接到壳体盖。 在另一个实施例中,谐振器使用盖调谐器(914)和盖基座(908)以及壳体调谐器(915)和壳体座(909)附接到盖和壳体(904)。 通过将支撑结构准确地对准和附接到谐振器来简化DRO腔(222,622,922)内的谐振器定位。

    Distributed logarithmic amplifier and method
    20.
    发明授权
    Distributed logarithmic amplifier and method 失效
    分布对数放大器和方法

    公开(公告)号:US5177381A

    公开(公告)日:1993-01-05

    申请号:US804142

    申请日:1991-12-06

    IPC分类号: G06G7/24 H03G7/00

    CPC分类号: G06G7/24 H03G7/001

    摘要: A logarithmic amplifier includes amplifier stages having an input transmission line and first and second output transmission lines. The input and output transmission line are coupled by multiple amplifier elements distributed along the transmission lines. One output transmission line forms a high gain low compression path and the other a low gain high compression path. The output transmission lines of each stage are coupled to a combiner from whence the logarithmically amplified output signal is obtained. The logarithmic amplifier stages are readily constructed in MMIC form and multiple stages may be easily cascaded to provide a very large dynamic range.

    摘要翻译: 对数放大器包括具有输入传输线和第一和第二输出传输线的放大器级。 输入和输出传输线由沿着传输线分布的多个放大器元件耦合。 一个输出传输线形成高增益低压缩路径,另一个形成低增益高压缩路径。 每个级的输出传输线被耦合到组合器,从而获得对数放大的输出信号。 对数放大器级可以容易地以MMIC形式构建,并且可以容易地级联多级以提供非常大的动态范围。