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1028 条记录 (耗时 0.025 秒)

    Variable filter element, variable filter module and fabrication method thereof
    66.
    发明公开
    Variable filter element, variable filter module and fabrication method thereof 审中-公开
    变量过滤器，Bauteil mit variablem过滤器和Herstellungsverfahrendafür

    公开(公告)号：EP2101412A1

    公开(公告)日：2009-09-16

    申请号：EP09163004.6

    申请日：2008-04-25

    申请人： Fujitsu Limited

    发明人： Mi, Xiaoyu ,  Shimanouchi, Takeaki ,  Imai, Masahiko ,  Ueda, Satoshi ,  Satoh, Yoshio

    IPC分类号： H03H7/01 ,  H01P1/203 ,  H01P1/201 ,  H05K1/18 ,  H01G5/40

    CPC分类号： H01P1/2013 ,  H01G5/40 ,  H01P1/203 ,  H01P11/007 ,  H03H7/0123 ,  H03H7/0153 ,  H03H7/175 ,  H03H7/1775

    摘要： A variable filter element and a variable filter module suitable for decreasing the drive voltage are provided. The variable filter element includes a substrate, two ground lines and a signal line between the ground lines, where these lines are disposed to extend in parallel on the substrate. The filter element further includes movable capacitor electrodes which bridge between the ground lines and have portions facing the signal line, drive electrodes which are located between the signal line and the ground lines and generate electrostatic attraction with the movable capacitor electrodes, and a ground line, which is disposed in the substrate, has a portion facing the signal line, and is electrically connected with the ground. The variable capacitor electrodes and the ground line constitute ground interconnection portions, and the signal line and ground interconnection portion constitute a distributed constant transmission line.

    摘要翻译： 提供了适于降低驱动电压的可变滤波器元件和可变滤波器模块。 可变滤波器元件包括衬底，两条接地线和接地线之间的信号线，其中这些线被设置成在衬底上平行延伸。 滤波器元件还包括桥接在接地线之间并具有面向信号线的部分的可移动电容器电极，位于信号线和接地线之间的驱动电极，并且与可移动电容器电极产生静电吸引，并且接地线， 其设置在基板中，具有面向信号线的部分，并且与地面电连接。 可变电容电极和接地线构成接地互连部分，信号线和接地互连部分构成分布常数的传输线。

    ARRANGEMENT FOR STEERING RADIATION LOBE OF ANTENNA
    68.
    发明公开
    ARRANGEMENT FOR STEERING RADIATION LOBE OF ANTENNA 有权
    安排用于驱动辐射LEG天线

    公开(公告)号：EP1886380A4

    公开(公告)日：2009-05-13

    申请号：EP06725956

    申请日：2006-05-18

    申请人： POWERWAVE COMTEK OY

    发明人： STOYANOV VLADIMIR

    IPC分类号： H01P5/22 ,  H01P1/18 ,  H01P1/203 ,  H01P5/08 ,  H01Q20060101 ,  H01Q3/32

    CPC分类号： H01Q3/32 ,  H01P1/184 ,  H01P1/2039 ,  H01P5/227

    摘要： An arrangement for steering the radiation lobe of an array antenna without turning the antenna itself. The radiators of the array antenna (371, 372, 373, 374) are located in the row, and two radiators (371 , 372, 373, 374) which are equidistant from the midpoint of the row, form a radiator pair (371, 372, 373, 374). To steer the radiator lobe, the phase of the signal of one radiator in the pair (371, 373, 372, 374) is e.g. advanced and the phase of the signal of the other radiator (371, 373, 372, 374) is lagged by equivalent amount. For this aim each radiator (371, 372, 373, 374) is fed through a phase shifter comprising at least one reflection line (341, 343) and a separating element (351, 352, 353, 354). The reflection lines (341, 343) for the pair radiators (371, 372, 373, 374) are implemented by a transmission line (321, 322, 323, 324), which is shared between them. The signal to be led to one radiator (371, 373, 372, 374) is fed to one end of this transmission line (321 , 322, 323, 324), and the signal to be led to the other radiator (371, 373, 372, 374) is fed to the opposite end of the same line. In the transmission line (321, 322, 323, 324) there is a reflection point (331, 332), the place of which can be moved. Said phase changes take place by moving the reflection point (331, 332) along the transmission line (321, 322, 323, 324). For moving the reflection point (331, 332), the transmission line (321, 322, 323, 324) has one movable (331, 332) or several fixed reflection circuits. In the former case, the reflection circuits (331, 332) of the different transmission lines (321, 322, 323, 324) are slides attached to one and the same movable arm (361 ). In the latter case, one of the reflection circuits of each transmission line is activated at a time. If the number of the radiator pairs (371, 372, 373, 374) is more than one, the phase adjusting for all the radiator pairs (371, 372, 373, 374) is implemented simultaneously by the common control.

    BANDPASS FILTER, HIGH-FREQUENCY MODULE USING THE SAME, AND RADIO COMMUNICATION DEVICE USING THEM
    69.
    发明公开
    BANDPASS FILTER, HIGH-FREQUENCY MODULE USING THE SAME, AND RADIO COMMUNICATION DEVICE USING THEM 有权
    BUNDPASSFILTER，HOCHFREQUENZMODUL DAMIT UND FUNKKOMMUNIKATIONSEINRICHTUNG DAMIT

    公开(公告)号：EP2034551A1

    公开(公告)日：2009-03-11

    申请号：EP07740735.1

    申请日：2007-03-30

    申请人： Kyocera Corporation

    发明人： YOSHIKAWA, Hiromichi

    IPC分类号： H01P1/203 ,  H01P1/205

    CPC分类号： H01P1/20345

    摘要： The present invention relates to a bandpass filter having a passband passband width appropriate as a bandpass filter for UWB, a high frequency module using the bandpass filter, and a radio communication device using the bandpass filter and the high frequency module. There is provided a bandpass filter including a laminate composed of a plurality of dielectric layers 11; first and second ground electrodes arranged on the bottom and top surfaces, respectively, of the laminate; resonance electrodes 30a, 30b, and 30c arranged in an inter-digital type on a first inter-layer portion of the laminate, one end of each of the resonance electrodes being grounded; an input coupling electrode 40a arranged on an inter-layer portion different from the first inter-layer portion of the laminate to face the resonance electrode 30a of the input stage in the inter-digital type; and an output coupling electrode 40b arranged on an inter-layer portion different from the first inter-layer portion of the laminate to face the resonance electrode 30b of the output stage. Accordingly, it can be possible to achieve a bandpass filter that has a flat and low-loss transmission characteristicstransmission characteristic over the entire region of the broad pass bandpassband that could not be achieved by a bandpass filter using the conventional 1/4 wavelength resonator.

    摘要翻译： 本发明涉及一种带通滤波器，具有适用于UWB的带通滤波器的通带通带宽度，使用带通滤波器的高频模块，以及使用带通滤波器和高频模块的无线通信装置。 提供一种带通滤波器，其包括由多个电介质层11构成的层叠体; 第一和第二接地电极分别布置在层压板的底表面和顶表面上; 共振电极30a，30b，30c在层叠体的第一层间部分以数字型配置，每个谐振电极的一端接地; 布置在与层叠体的第一层间部分不同的层间部分上以数字型面对输入级的谐振电极30a的输入耦合电极40a; 以及输出耦合电极40b，布置在与层叠体的第一层间部分不同的层间部分上，以面对输出级的谐振电极30b。 因此，可以实现在宽带通带的整个区域上具有平坦且低损耗的传输特性的带通滤波器，这是通过使用常规1/4波长谐振器的带通滤波器无法实现的。