-
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。
-
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
CPC分类号： H03F3/604 , H03F1/0283 , H03F3/423
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。
-
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）。
-
公开(公告)号：US5339462A
公开(公告)日：1994-08-16
申请号：US787354
申请日：1991-11-04
CPC分类号： H01L23/66 , H03D7/1408 , H04B1/26 , H01L2924/0002 , H01L2924/3011 , H03D9/0608 , H03D9/0633
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。
-
5.发明授权
公开(公告)号：US5477137A
公开(公告)日：1995-12-19
申请号：US955967
申请日：1992-10-02
摘要： A method and apparatus for a probeable substrate substitute for a calibration standard and test fixture. The probestrate includes a dielectric substrate having first and second dielectric substrate surfaces and at least one conductive via hole through the dielectric substrate from the first dielectric substrate surface to the second dielectric substrate surface. A first metalized layer is in contact with the first dielectric substrate surface and the at least one conductive via hole. A second metalized layer is in contact with a first portion of the second dielectric substrate surface and with the at least one conductive via hole. The first and second test ports contact a second portion of the second dielectric substrate surface. An electronic device can be connected to the first and second test ports with bond wires for characterization via contact of the first and second test ports with standard test station equipment.
摘要翻译： 一种可探测衬底的替代校准标准和测试夹具的方法和装置。 优点包括具有第一和第二电介质衬底表面的电介质衬底和从第一电介质衬底表面到第二电介质衬底表面的穿过电介质衬底的至少一个导电通孔。 第一金属化层与第一电介质基板表面和至少一个导电通孔接触。 第二金属化层与第二介电衬底表面的第一部分和至少一个导电通孔接触。 第一和第二测试端口接触第二电介质衬底表面的第二部分。 电子设备可以通过第一和第二测试端口与标准测试站设备的接触，将第一和第二测试端口连接到具有用于表征的接合线。
-
公开(公告)号：US5265269A
公开(公告)日：1993-11-23
申请号：US718726
申请日：1991-06-21
CPC分类号： H03D7/1408 , H04B1/26 , H03D9/0633
摘要： An apparatus for mixing electrical signals including in combination: first signal splitting means having a radio frequency (RF) port and first, second, third and fourth signal ports, second signal splitting means having a local oscillator (LO) port and first, second, third and fourth signal ports, intermediate frequency (IF) port, and mixer element means, the mixer element means coupled to the first, second, third, and fourth signal ports of the first and second signal splitting means and coupled to the intermediate frequency port means, for mixing two of the RF, IF, and LO signals to produce the remaining signal.
摘要翻译： 一种用于混合电信号的装置，包括：具有射频（RF）端口和第一，第二，第三和第四信号端口的第一信号分离装置，具有本地振荡器（LO）端口的第二信号分离装置，以及第一， 第三和第四信号端口，中频（IF）端口和混频器元件装置，混频器元件装置耦合到第一和第二信号分离装置的第一，第二，第三和第四信号端口，并耦合到中频端口 意味着用于混合RF，IF和LO信号中的两个以产生剩余信号。
-
公开(公告)号：US5214796A
公开(公告)日：1993-05-25
申请号：US677688
申请日：1991-03-29
CPC分类号： H04B1/26 , H03D7/1408
摘要： A mixer (50) separates IF components IF1, IF2 of the same frequency which are images of different frequency RF signals RF1, RF2 beating with a given LO signal, by combining a 180.degree. phase shift input (56) for the LO signal (53) and a 90.degree. phase shift input (66) for the RF signals (63) which are coupled to opposed ports (N1/N2; N3/N4) of a four port diode ring (70) and an output four port quadrature phase shifter (80). The diode ring (70) generates IF signals (71, 72) which are fed to opposed input ports (75, 76) of the output phase shifter (80) at whose other ports (81, 82) the separated image signals IF1, IF2 appear.
摘要翻译： 混合器（50）通过组合用于LO信号（53）的180°相移输入（56）来分离作为不同频率RF信号RF1，RF2的图像的相同频率的IF分量IF1，IF2与给定的LO信号 ）和用于RF信号（63）的90°相移输入（66），其耦合到四端口二极管环（70）的相对端口（N1 / N2; N3 / N4）和输出四端口正交移相器 （80）。 二极管环（70）产生IF信号（71,72），其馈送到输出移相器（80）的相对的输入端口（75,76），在其另一个端口（81,82）处，分离的图像信号IF1，IF2 出现。
-
公开(公告)号：US5196805A
公开(公告)日：1993-03-23
申请号：US828623
申请日：1992-01-31
IPC分类号： H03F3/60
CPC分类号： H03F3/607
摘要： A N-stage differential distributed amplifier arrangement. The differential distributed amplifier arrangement includes a parallel connection of N-differential amplifiers. The inputs to the amplifiers are delayed so that the same input is received by each amplifier in sequence at a slightly later time than the preceding amplifier. The outputs of each amplifier are also delayed so that the output of the previous amplifier is added to the output of the next sequential amplifier. Thereby the output is an amplified version of the input. By appropriate grounding of inputs or outputs the differential distributed amplifier arrangement may convert from balanced signals to single-ended signals, from single-ended signals to balanced signals or from two inputs to two outputs.
摘要翻译： N级差分分布式放大器布置。 差分分布放大器装置包括N-差分放大器的并联连接。 放大器的输入被延迟，使得每个放大器在稍晚于前一放大器的时间上依次接收相同的输入。 每个放大器的输出也被延迟，使得先前放大器的输出被加到下一个顺序放大器的输出端。 因此输出是输入的放大版本。 通过输入或输出的适当接地，差分分布式放大器装置可以将平衡信号转换为单端信号，从单端信号转换为平衡信号，或从两路输入转换为两路输出。
-
公开(公告)号：US5128638A
公开(公告)日：1992-07-07
申请号：US620692
申请日：1990-12-03
摘要： A method for creating a four-port quadrature coupler suitable for monolithic implementation which involves connecting two ports of a balun, suitable itself for implementation in monolithic microwave integrated circuits, to two separate phasing networks. A device exhibiting the proper four-port quadrature coupler characteristics within a MMIC structure results, with wide bandwidth exceeding one octave.
摘要翻译： 一种用于创建适用于单片实现的四端口正交耦合器的方法，其涉及将两个平衡 - 不平衡变换器的两个端口连接在一起，适用于单片微波集成电路中的实现，两个单独的定相网络。 在MMIC结构中呈现正确的四端口正交耦合器特性的器件会导致宽带宽超过一个八度。
-
公开(公告)号：US4992761A
公开(公告)日：1991-02-12
申请号：US453204
申请日：1989-12-26
申请人： Warren L. Seely , Joseph Staudinger
发明人： Warren L. Seely , Joseph Staudinger
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。
-
-
-
-
-
-
-
-
-
搜索结果
22 条记录 (耗时 0.017 秒)
