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    Multiband impedance matching circuit
    3.
    发明公开
    Multiband impedance matching circuit 审中-公开
    多频带阻抗匹配电路

    公开(公告)号：EP2421151A2

    公开(公告)日：2012-02-22

    申请号：EP11177704.1

    申请日：2011-08-16

    Applicant: NTT DoCoMo, Inc.

    Inventor： Fukuda, Atsushi ,  Okazaki, Hiroshi ,  Narahashi, Shoichi

    IPC: H03H7/38

    CPC classification number: H03H7/38 ,  H03F3/19 ,  H03F3/245 ,  H03F3/60 ,  H03F2200/111 ,  H03F2200/171 ,  H03F2200/387 ,  H03F2200/414 ,  H03F2200/417 ,  H03H7/463 ,  H03H2007/386

    Abstract: A multiband matching circuit of the present invention includes an inductive element (42) having one end connected to an input terminal (P2), a first switch (SWL) having one end connected to the other end of the inductive element and the other end grounded, a capacitive element (41) having one end connected to the input terminal (P2), a second switch (SWH) having one end connected to the other end of the capacitive element and the other end grounded, a first-band matching circuit (10L) that is connected between the other end of the inductive element (42) and a first output terminal (P1L) and performs impedance matching in a first frequency band, and a second-band matching circuit (10H) that is connected between the other end of the capacitive element (41) and a second output terminal (P1H) and performs impedance matching in a second frequency band higher than the first frequency band.

    Abstract translation: 本发明的多频带匹配电路包括一端连接到输入端（P2）的电感元件（42），一端连接到电感元件另一端并且另一端接地的第一开关（SWL） ，一端连接到输入端子（P2）的电容元件（41），第一开关（SWH），一端连接到电容元件的另一端，另一端接地，第一频带匹配电路 10L），其连接在电感元件（42）的另一端与第一输出端子（P1L）之间并且在第一频带中执行阻抗匹配;以及第二频带匹配电路（10H），其连接在第一频带 电容元件（41）的端部和第二输出端子（P1H），并且在比第一频带高的第二频带中进行阻抗匹配。

    Variable impedance matching circuit
    4.
    发明公开
    Variable impedance matching circuit 审中-公开
    变量Impedanzanpassungsschaltung

    公开(公告)号：EP2418772A2

    公开(公告)日：2012-02-15

    申请号：EP11176613.5

    申请日：2011-08-04

    Applicant: NTT DoCoMo, Inc.

    Inventor： Fukuda, Atsushi ,  Okazaki, Hiroshi ,  Narahashi, Shoichi

    IPC: H03H7/38

    CPC classification number: H03H7/38 ,  H03H2001/0064 ,  H03H2007/008 ,  H03H2007/386

    Abstract: A variable impedance matching circuit includes a series or parallel connection of a fixed inductive element and a first variable capacitive element and a second variable capacitive element connected in series with the serial or parallel connection. The susceptance of the circuit can be changed by changing the capacitances of the variable capacitive elements.

    Abstract translation: 可变阻抗匹配电路包括固定电感元件和与串联或并联连接串联连接的第一可变电容元件和第二可变电容元件的串联或并联连接。 可以通过改变可变电容元件的电容来改变电路的电纳。

    Multirole circuit element capable of operating as variable resonator or transmission line and variable filter incorporating the same
    5.
    发明公开
    Multirole circuit element capable of operating as variable resonator or transmission line and variable filter incorporating the same 有权
    作为可变共振腔或传输线可用多功能开关元件和可变滤波器阶

    公开(公告)号：EP2365576A1

    公开(公告)日：2011-09-14

    申请号：EP11156817.6

    申请日：2011-03-03

    Applicant: NTT DoCoMo, Inc.

    Inventor： Kawai, Kunihiro ,  Okazaki, Hiroshi ,  Narahashi, Shoichi

    IPC: H01P1/203 ,  H01P7/08

    CPC classification number: H01P7/00 ,  H01P1/127 ,  H01P1/203 ,  H01P5/00 ,  H01P7/082

    Abstract: A variable resonator includes a first transmission line 101, a second transmission line 102 and a plurality of switch circuits 150. The electrical length of the first transmission line 101 is equal to the electrical length of the second transmission line 102. The characteristic impedance for the even mode of the first transmission line 101 is equal to the characteristic impedance for the even mode of the second transmission line 102. The characteristic impedance for the odd mode of the first transmission line 101 is equal to the characteristic impedance for the odd mode of the second transmission line 102. Each switch circuit 150 is connected to any of the first transmission line 101 and the second transmission line 102, and one of the switch circuits 150 is turned on.

    Abstract translation: 的可变谐振器包括第一传输线101，第二传输线102和开关电路的多元性150第一传输线101的电气长度等于在第二传输线102的特性阻抗的电气长度 即使在第一传输线路101的模式等于所述第二传输线路的偶模式特性阻抗102.第一传输线101的奇模式特性阻抗相等的特性阻抗为的奇模 第二传输线102的各电路150被连接到任何所述第一传输线101和第二传输线102，以及开关电路150中的一个的开关被接通。

    Duplexer and transceiver
    7.
    发明公开
    Duplexer and transceiver 有权
    Duplexer和Sende-Empfangsgerät

    公开(公告)号：EP2056393A1

    公开(公告)日：2009-05-06

    申请号：EP08018941.8

    申请日：2008-10-30

    Applicant: NTT DoCoMo, Inc.

    Inventor： Kawai, Kunihiro ,  Okazaki, Hiroshi ,  Narahashi, Shoichi

    IPC: H01P1/213

    CPC classification number: H01P1/2135

    Abstract: A duplexer according to the present invention includes a first port, a second port and a third port for external input/output, a first path formed between the first port and the third port, a second path formed between the second port and the third port, a phase shifting part provided for each path, and a resonating part provided for each path. At least any of the resonating parts has a ring conductor having a length equal to one wavelength at a resonant frequency or an integral multiple thereof, a plurality of passive circuits, and a plurality of switches each of which is connected to a different part of the ring conductor at one end and to any of the passive circuits at the other end. A switch may simply be connected to a ground conductor instead of being connected to the passive circuit.

    Abstract translation: 根据本发明的双工器包括第一端口，第二端口和用于外部输入/输出的第三端口，形成在第一端口和第三端口之间的第一路径，形成在第二端口和第三端口之间的第二路径 ，为每个路径设置的相移部分和为每个路径设置的谐振部分。 至少任何谐振部件具有在共振频率或其整数倍处具有等于一个波长的长度的环形导体，多个无源电路和多个开关，每个开关连接到不同的部分 环形导体和另一端的任何无源电路。 开关可以简单地连接到接地导体，而不是连接到无源电路。

    Multimode frontend circuit
    10.
    发明公开
    Multimode frontend circuit 审中-公开
    多模式Eingangsschaltung

    公开(公告)号：EP2424109A2

    公开(公告)日：2012-02-29

    申请号：EP11178469.0

    申请日：2011-08-23

    Applicant: NTT DOCOMO, INC.

    Inventor： Kawai, Kunihiro ,  Okazaki, Hiroshi ,  Narahashi, Shoichi

    IPC: H03H7/46

    CPC classification number: H03H7/465 ,  H01P1/203 ,  H01P1/2135

    Abstract: A multimode frontend circuit of the present invention comprises two transmission paths. Each of the transmission paths comprises two input/output lines, a first transmission line having one end connected to one of the input/output lines and the other end connected to the other input/output line, a second transmission line connected to the one of the input/output lines and the other end connected to the other input/output line, and one or more termination switch circuits. The termination switch circuit or circuits comprise a switch having one end connected to one of the first and second transmission lines and a termination circuit connected to the other end of the switch. Each of the transmission lines may comprise one or more short-circuiting switches. The short-circuiting switch or switches are capable of short-circuiting between the two transmission lines at positions at the same electrical length from one of the input/output lines.

    Abstract translation: 本发明的多模前端电路包括两个传输路径。 每个传输路径包括两个输入/输出线，第一传输线的一端连接到输入/输出线之一，另一端连接到另一个输入/输出线，第二传输线连接到 输入/输出线和另一端连接到另一个输入/输出线，以及一个或多个端接开关电路。 终端开关电路或电路包括具有连接到第一和第二传输线之一的一端和连接到开关另一端的终端电路的开关。 每个传输线可以包括一个或多个短路开关。 短路开关或开关能够在来自输入/输出线之一的电长度相同的位置处在两条传输线之间短路。

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