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    • 1. 发明申请
    • FRONT-END CIRCUIT
    • 前端电路
    • WO2012089236A1
    • 2012-07-05
    • PCT/EP2010/070765
    • 2010-12-27
    • EPCOS AGIKONEN, PekkaELLÄ, JuhaTIKKA, Pasi
    • IKONEN, PekkaELLÄ, JuhaTIKKA, Pasi
    • H04B1/00H04B1/40
    • H04B1/44H04B1/006H04B1/0064
    • The present invention concerns a front-end circuit (FEC) that is connectable to at least two radiators (RAD1M, RAD1D), wherein the front-end circuit (FEC) comprises sub-circuits (SC) and each sub-circuit (SC) is associated to one radiator (RAD1M, RAD1D). Further, each sub-circuit (SC) comprises a signal path (SP), an antenna port (AP) that is electrically coupled to the signal path (SP) and connectable to the radiator (RAD1M, RAD1D), a grounding port (GP) that is connectable to the radiator (RAD1M, RAD1D), a ground termination circuit (GTC), and a grounding switch (GS) that is electrically coupled to the grounding port (GP) and to the grounding termination circuit (GTC).
    • 本发明涉及可连接到至少两个辐射器(RAD1M,RAD1D)的前端电路(FEC),其中前端电路(FEC)包括子电路(SC)和每个子电路(SC) 与一个散热器(RAD1M,RAD1D)相关联。 此外,每个子电路(SC)包括信号路径(SP),电耦合到信号路径(SP)并且可连接到散热器(RAD1M,RAD1D)的天线端口(AP),接地端口 )可连接到电气耦合到接地端口(GP)和接地终端电路(GTC)的散热器(RAD1M,RAD1D),接地终端电路(GTC)和接地开关(GS)。
    • 3. 发明申请
    • TRANSMITTER FILTER ARRANGEMENT FOR MULTIBAND MOBILE PHONE
    • 多功能手机的发射机滤波器布置
    • WO2004110029A2
    • 2004-12-16
    • PCT/IB2004/000956
    • 2004-03-30
    • NOKIA CORPORATIONNOKIA INC.ELLÄ, Juha
    • ELLÄ, Juha
    • H04M
    • H03H9/542H03H9/706H03H2007/013H03H2011/0488H03H2250/00H04B1/005H04B1/006H04B1/406H04B5/0075
    • A filter arrangement for use in a multiband dual-mode mobile phone. In particular, the mobile phone is operable in a W-CDMA mode and a band-reject filter comprising at least a series and a shunt acoustic-wave resonators is used to create a deep notch at the receive frequency band. The band-reject filter further includes a plurality of inductive elements for matching static capacitance of the resonators at the passband frequency. The mobile phone is also operable in 1800 and 1900 GSM bands. The band-reject filter is operatively connected to a harmonic trap in order to eliminate the third harmonic of these GSM bands. The mobile phone is also operable in the lower GSM band, for which a harmonic filter can share an antenna path with the band-reject filter.
    • 一种用于多频双模移动电话的滤波器装置。 特别地,移动电话可以在W-CDMA模式下工作,并且使用包括至少一系列的阻带滤波器和分流声波谐振器来在接收频带处产生深陷波。 带阻滤波器还包括用于在通带频率下匹配谐振器的静态电容的多个感应元件。 手机也可以在1800和1900 GSM频段中操作。 带阻滤波器可操作地连接到谐波陷波器,以消除这些GSM频带的三次谐波。 移动电话还可以在较低的GSM频带中操作,其中谐波滤波器可以与带阻滤波器共享天线路径。
    • 8. 发明申请
    • FRONT-END ARRANGEMENTS FOR MULTIBAND MULTIMODE COMMUNICATION ENGINES
    • 多通道多通道发动机的前端装置
    • WO2005039060A2
    • 2005-04-28
    • PCT/IB2004/002647
    • 2004-08-13
    • NOKIA CORPORATIONNOKIA INC.ELLÄ, JuhaMARTIN, NigelKYLÄKOSKI, Janne
    • ELLÄ, JuhaMARTIN, NigelKYLÄKOSKI, Janne
    • H04B
    • H04B1/0057H04B1/0064H04B1/18H04B1/48
    • A receive front-end module in a multi-band communication device. The communication device comprises a plurality of signal paths for receiving and transmitting communication signals in a plurality of frequency bands in GSM and W-CDMA modes. The signal paths in the receive front-end module are operatively connected to a common feed point, which is connected to one of the RF antennas of the communication device, and the signal paths are selected such that no frequency bands for receiving communication signals in the receive front-end module are overlapping. If the communication device also transmits the communication signal in at least one transmit frequency range partially overlapping with one of the frequency bands in the receive front-end module, switching means is provided to at least one of signal paths in the receive front-end module for providing cross-band isolation between the transmitted and received communication signals.
    • 在多频带通信设备中的接收前端模块。 通信设备包括用于在GSM和W-CDMA模式中的多个频带中接收和发送通信信号的多个信号路径。 接收前端模块中的信号路径可操作地连接到公共馈电点,公共馈电点连接到通信装置的RF天线中的一个,并且信号路径被选择为使得没有频带用于接收通信信号 接收前端模块是重叠的。 如果通信设备还在与接收前端模块中的一个频带部分重叠的至少一个发射频率范围内发送通信信号,则将接收前端模块中的信号路径中的至少一个提供开关装置 用于在发送和接收的通信信号之间提供跨频带隔离。