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533 条记录 (耗时 0.015 秒)

    PHASE SHIFTER TUNABLE VIA APERTURES IN THE GROUND PLANE OF THE WAVE GUIDE
    81.
    发明公开
    PHASE SHIFTER TUNABLE VIA APERTURES IN THE GROUND PLANE OF THE WAVE GUIDE 有权
    关于纤维调谐的移相幻灯片的地面表面的洞

    公开(公告)号：EP1371108A1

    公开(公告)日：2003-12-17

    申请号：EP02726106.4

    申请日：2002-02-12

    申请人： ERA PATENTS LIMITED

    发明人： SANCHEZ, Fransisco, Javier, Vasquez

    IPC分类号： H01P1/18 ,  H01Q3/26

    CPC分类号： H01Q3/36 ,  H01P1/182 ,  H01P1/184

    摘要： A phase shifting element adapted to introduce a variable phase shift to an electromagnetic wave includes a transmission line segment (10), such as amicrostrip line segment (1) or a segment of a waveguide, above a ground plane (or waveguide wall) (2). The ground plane or wall (2) includes at least one aperture (3) positioned below the microstrip line or waveguide segment (1). An electrically conductive tuning plate (4) is provided adjacent the ground plane or wall (2) and is movable, toward or away from the ground plane or wall. Movement of the tuning plate (4) provides adjustement of the phase shift introduced to an electromagnetic wave propagated through the waveguide segment.

    ANALOG RAT-RACE PHASE SHIFTERS TUNED BY DIELECTRIC VARACTORS
    82.
    发明公开
    ANALOG RAT-RACE PHASE SHIFTERS TUNED BY DIELECTRIC VARACTORS 审中-公开
    与相SLIDE介电变容二极管混合环

    公开(公告)号：EP1325532A1

    公开(公告)日：2003-07-09

    申请号：EP02761317.3

    申请日：2002-08-12

    申请人： Paratek Microwave, Inc.

    发明人： ZHU, Yongfei

    IPC分类号： H01P1/18

    CPC分类号： H01P1/185

    摘要： A phase shifter (10) includes a first rat-race ring (12) having four ports (14, 16, 18, 20), an input (22) coupled to a first one of the ports (14), an output coupled to a second one of the ports (20), a first resonant circuit (32, 34) coupled to a third one of the ports (16), and a second resonant circuit (50, 52) coupled to a fourth one of the ports (18), each of the first and second resonant circuits (32, 34, 50, 52) including a tunable dielectric varactor (940, 46, 58, 64). The first rat race ring (12) can be connected to another phase shifting stage including second rat race ring (82) or a digital switched line phase shifter (196).

    Signal process apparatus for phase-shifting N number of signals inputted thereto
    83.
    发明公开
    Signal process apparatus for phase-shifting N number of signals inputted thereto 有权
    信号技术有限公司on en en en en en en en en en en en en en

    公开(公告)号：EP1182724A3

    公开(公告)日：2003-05-07

    申请号：EP01810252.5

    申请日：2001-03-12

    申请人： KMW Inc.

    发明人： Kim, Duk-Yong ,  Lee, Yoon-Bae ,  Hwang, Gyu-Sang ,  Lee, In-Young ,  Bang, Sang-Wook ,  Seo, Chang-Yun, 401 Ka-Dong ,  Lee, Kyoung-Ho ,  Lee, Sung-Soo ,  Kim, Yoon-Yong ,  Kim, Taek-Dong

    IPC分类号： H01P1/18 ,  H01P1/22

    CPC分类号： H01P1/184

    摘要： A signal process apparatus of the present invention is capable of shifting phases of signals inputted thereto and attenuating the signals, simultaneously. The signal process apparatus includes a dielectric member provided with a first and a second portions, a plurality of transmission lines positioned opposite the dielectric member for transmitting the signals and means for rotating the dielectric member to an axis perpendicular to a surface of the dielectric member which is parallel to the transmission lines. In the signal-process apparatus, a dielectric constant of the first portion is different from that of the second portion. Each of the signals is inputted to a corresponding transmission line. After each of the signals is passing through the corresponding transmission line, it has a phase shifted by rotating the dielectric member.

    摘要翻译： 本发明的信号处理装置能够将输入的信号的相位相移并且同时衰减信号。 信号处理装置包括具有第一和第二部分的电介质部件，与用于传送信号的电介质部件相对的多个传输线，以及用于使电介质部件旋转到与电介质部件的表面垂直的轴线的装置， 平行于传输线。 在信号处理装置中，第一部分的介电常数不同于第二部分的介电常数。 每个信号被输入到相应的传输线。 在每个信号通过相应的传输线之后，它通过旋转电介质构件而相移。

    ELECTRONICALLY TUNABLE DIELECTRIC COMPOSITE THICK FILMS
    86.
    发明公开
    ELECTRONICALLY TUNABLE DIELECTRIC COMPOSITE THICK FILMS 审中-公开
    电子可调的电介质复合材料厚层

    公开(公告)号：EP1290753A1

    公开(公告)日：2003-03-12

    申请号：EP01946366.0

    申请日：2001-06-15

    申请人： Paratek Microwave, Inc.

    发明人： SENGUPTA, Louise, C.

    IPC分类号： H01P1/18

    CPC分类号： H01P7/04 ,  H01P1/181 ,  H05K1/16 ,  H05K3/4664

    摘要： Electronically tunable thick film composites of tunable phases such as barium strontium titanate and additional dielectric oxide phases are disclosed. The composite thick films can contain multiple phases such as barium strontium titanate and MgTiO3, Mg2SiO4, CaSiO3 MgO, MgZrO3, CaTiO3, MgAl2O4, and MgSrZrTiO6. The thick films may contain further additives such as zirconnates, stannates, rare earths, niobates and tantalates, for example, CaZrO3, BaZrO3, SrZrO3, BaSnO3, CaSnO3, MgSnO3, Bi2O3/2SnO2, Nd2O3, Pr7O11, Yb2O3, Ho2O3, La2O3, MgNb2O6, SrNb2O6, BaNb2O6, MgTa2O6, BaTa2O6, and Ta2O3 to improve the electronic and microwave properties of the thick film composites. The particle size of these films may be controlled in order to optimize the electronic and microwave properties. The electronically tunable thick film composites may be made by techniques such as screen-printing or spray deposition.

    MULTI-BIT PHASE SHIFTERS USING MEM RF SWITCHES
    89.
    发明公开
    MULTI-BIT PHASE SHIFTERS USING MEM RF SWITCHES 审中-公开
    采用滑盖MEM射频开关多相

    公开(公告)号：EP1216492A1

    公开(公告)日：2002-06-26

    申请号：EP01950778.9

    申请日：2001-06-28

    申请人： Raytheon Company

    发明人： ALLISON, Robert, C. ,  QUAN, Clifton ,  PIERCE, Brian, M.

    IPC分类号： H01P1/18

    CPC分类号： H01P1/184 ,  H01H59/0009

    摘要： An RF phase shifter circuit includes first and second RF ports (104, 106), and a switch circuit comprising a plurality of micro-electro-mechanical ('MEM') switches (50A-50D) responsive to control signals. The switch circuit is arranged to select one of a plurality of discrete phase shift values introduced by the phase shifter circuit to RF signals passed between the first and second RF ports. The circuits can be connected to provide a single-pole-multiple-throw (SPMT) or multiple-pole-multiple-throw (MPMT) switch function. The SPMT and MPMT switch circuits can be employed in other applications, including switchable attenuators, switchable filter banks, switchable time delay lines, switch matrices and transmit/receive RF switches.

    Phase shifter
    90.
    发明公开
    Phase shifter 有权
    移相器

    公开(公告)号：EP1215752A1

    公开(公告)日：2002-06-19

    申请号：EP01403159.5

    申请日：2001-12-07

    申请人： ALCATEL

    发明人： McDonald, Noel ,  Williams, Charlie G.

    IPC分类号： H01Q3/36 ,  H01P1/18

    CPC分类号： H01P1/184 ,  H01Q3/36

    摘要： A phase shifting element for controllably varying the phase of signals of desired frequencies or frequency range passing along an adjacent transmission line section associated with, for example, an antenna array to electrically down-tilt the array's electromagnetic wave pattern. The phase shifting element includes a planar dielectric member having at least three discrete co-planar interactive segments extending from an edge thereof and arranged to movably overlap or intersect or interleave the transmission line section to vary its effective electrical length. Optimum dimensions of each interactive segment and optimum widths of gaps defined by facing edges of adjacent segments are determined by a computer optimisation program, such that the phase shifting element achieves a wide operating frequency range and minimum aggregate signal reflection.

    摘要翻译： 一个相移元件，用于可控地改变沿着与例如天线阵列相关联的相邻传输线路段传递的期望频率或频率范围的信号的相位，以使阵列的电磁波模式电下降。 相移元件包括平面电介质构件，该平面电介质构件具有从其边缘延伸的至少三个离散的共平面交互段，并被布置为可移动地重叠或相交或交错传输线段以改变其有效电长度。 通过计算机优化程序确定每个交互段的最佳尺寸和由相邻段的相对边缘限定的间隙的最佳宽度，使得相移元件实现宽工作频率范围和最小聚集信号反射。