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    • 11. 发明申请
    • MOBILE COMMUNICATION DEVICE WITH IMPROVED ANTENNA PERFORMANCE
    • 具有改善天线性能的移动通信设备
    • US20140009360A1
    • 2014-01-09
    • US13885671
    • 2010-11-25
    • Pekka IkonenJuha Ellä
    • Pekka IkonenJuha Ellä
    • H01Q1/50
    • H01Q1/50H01Q1/242H01Q1/521
    • The present invention concerns a mobile communication device comprising a ground plane, a main antenna comprising a main radiator (MRAD) that can couple electromagnetically to the ground plane and to a first signal path (SPm), a diversity antenna comprising a diversity radiator (DRAD), a reconfigurable input matching circuit that couples the diversity radiator (DRAD) to the ground plane and to a second signal path (SPd), and a control unit (CU) coupled to the reconfigurable input matching circuit and adapted to change the coupling of the diversity radiator (DRAD) to the ground plane during operation. The present invention further concerns to a method to enhance the performance of the device.
    • 本发明涉及包括接地平面的移动通信设备,包括可以电磁耦合到接地平面的主辐射器(MRAD)和第一信号路径(SPm)的主天线,包括分集辐射器(DRAD)的分集天线 ),将分集辐射器(DRAD)耦合到接地平面和第二信号路径(SPd)的可重配置输入匹配电路,以及耦合到可重配置输入匹配电路的控制单元(CU),并且适于改变 分散散热器(DRAD)到地平面运行。 本发明还涉及一种增强设备性能的方法。
    • 12. 发明授权
    • Versatile antenna switch architecture
    • 多功能天线开关架构
    • US07187945B2
    • 2007-03-06
    • US10836124
    • 2004-04-30
    • Tero RantaJuha Ellä
    • Tero RantaJuha Ellä
    • H04M1/00
    • H04B1/48H03J5/244
    • A RF front-end having two antenna switches operatively connected to two separate antennas. The antenna switches can be used to route various transmit and receive paths to the antennas. In particular, one of the antenna switches has three switch position for use in selectively routing the 2 GHz receive paths, and another antenna switch has six switch positions for use in selectively routing the 2 GHz transmit paths and the 1 GHz signal paths. With the disclosed topology, the front-end can be used to support GSM and W-CDMA communications in many regional variants in the world. The supported variants include US1, US2, EU1, EU2 and EU/US modes. The same front-end can also be used in BT/WLAN connectivity. For MIMO purposes, one more antenna switch for the 2 GHz receive paths can be added to the same RF front-end.
    • 一个具有两个天线开关的射频前端,可操作地连接到两个单独的天线。 天线开关可用于将各种发送和接收路径路由到天线。 特别地,其中一个天线开关具有用于选择性地路由2GHz接收路径的三个开关位置,另一个天线开关具有用于选择性地路由2GHz发射路径和1GHz信号路径的六个开关位置。 利用所公开的拓扑结构,前端可用于支持世界上许多区域变体中的GSM和W-CDMA通信。 受支持的版本包括US1,US2,EU1,EU2和EU / US模式。 同样的前端也可以用于BT / WLAN连接。 对于MIMO目的,可以将另外一个用于2 GHz接收路径的天线开关添加到同一个RF前端。
    • 15. 发明授权
    • Dual-channel passband filtering system using acoustic resonators in lattice topology
    • 双通道通带滤波系统,在晶格拓扑中使用声谐振器
    • US07194247B2
    • 2007-03-20
    • US09965637
    • 2001-09-26
    • Pasi TikkaJuha Ellä
    • Pasi TikkaJuha Ellä
    • H04B1/16
    • H03H9/009H03H9/70
    • A dual-channel passband filtering system having a first, second and third balanced ports for connecting, respectively, to a first transceiver, an antenna and a second transceiver. A first lattice-type passband filter is connected between the first and the second port, and a second lattice-type passband filter is connected between the second and the third port. A phase shifter is used to match the first and second transceiver and the second port. A balun can be used for each port to convert the balanced port to a single-ended port. In each passband filter, two series resonators are use to provide two balanced ends, and two shunt resonators are connected to the series resonators in a crisscross fashion to form a differential or balanced topology. The first and second passband filters have different frequencies.
    • 一种具有用于分别连接到第一收发器,天线和第二收发器的第一,第二和第三平衡端口的双通道通带滤波系统。 第一格式通带滤波器连接在第一和第二端口之间,第二格式通带滤波器连接在第二和第三端口之间。 移相器用于匹配第一和第二收发器和第二端口。 每个端口可以使用平衡 - 不平衡变换器,将平衡端口转换为单端口。 在每个通带滤波器中,使用两个串联谐振器来提供两个平衡端,并且两个并联谐振器以十字形方式连接到串联谐振器,以形成差分或平衡拓扑。 第一和第二通带滤波器具有不同的频率。
    • 16. 发明授权
    • Mimo and diversity front-end arrangements for multiband multimode communication engines
    • 多频段多模通信引擎的Mimo和多样化前端布置
    • US07155252B2
    • 2006-12-26
    • US10688181
    • 2003-10-17
    • Nigel MartinJuha ElläJanne Kyläkoski
    • Nigel MartinJuha ElläJanne Kyläkoski
    • H04M1/00H04B1/18
    • H04B1/0057H04B1/005H04B1/406H04B1/48
    • A receive front-end module having one or more 2 GHz Rx paths and one or more W-CDMA Rx paths for use in a portable communication device, such as a mobile phone or a communicator device. The module comprises at least two feed points operatively connected to two electrically separate antennas for receiving communication signals. The module also comprises filters for filtering the communication signals in corresponding frequency band, and means for providing cross-band isolation. The cross-band isolation is achieved by using linear amplifiers in different signal paths, for example. Advantageously, the module comprising three signal paths so that one or more modules can be used together to achieve MIMO/diversity functionality.
    • 具有一个或多个2GHz Rx路径的接收前端模块和用于诸如移动电话或通信装置的便携式通信设备中的一个或多个W-CDMA Rx路径。 模块包括至少两个可操作地连接到两个用于接收通信信号的电分离天线的馈电点。 该模块还包括用于对相应频带中的通信信号进行滤波的滤波器以及用于提供跨频带隔离的装置。 例如,通过使用不同信号路径中的线性放大器来实现跨频带隔离。 有利地,模块包括三个信号路径,使得一个或多个模块可以一起使用以实现MIMO /分集功能。
    • 18. 发明授权
    • Method for adjusting the center frequency of a balanced filter and a plurality of balanced filters
    • 用于调整平衡滤波器的中心频率和多个平衡滤波器的方法
    • US06388544B1
    • 2002-05-14
    • US09718919
    • 2000-11-22
    • Juha Ellä
    • Juha Ellä
    • H03H954
    • H03H3/04H03H9/0095
    • Method (800) for adjusting the center frequency of a balanced filter comprising at least four resonators, comprises the following steps: specifying (801) a nominal center frequency for the balanced filter when connected to a circuitry having a certain nominal impedance; determining (802) the actual center frequency of the balanced filter when connected to a circuitry having a certain actual impedance, comparing (803, 804) the actual center frequency of the filter to the nominal one, and adjusting (805, 806) the impedance ratio between the circuitry and the balanced filter within certain limits based on the comparison. A plurality of balanced filters (1610, 1620, 1630) on a substrate (1600) is characterized in that the total area of bulk acoustic wave resonators in the balanced resonators depends on the position of the balanced filter on the substrate. Further, the balanced filters have substantially the same actual center frequency.
    • 用于调节包括​​至少四个谐振器的平衡滤波器的中心频率的方法(800)包括以下步骤:当连接到具有特定标称阻抗的电路时,指定(801)平衡滤波器的标称中心频率; 当连接到具有一定实际阻抗的电路时,确定(802)平衡滤波器的实际中心频率,将滤波器的实际中心频率与标称值进行比较(803,804),并调整(805,806)阻抗 基于比较,电路和平衡滤波器之间的比例在一定限度内。 在衬底(1600)上的多个平衡滤波器(1610,1620,1630)的特征在于,平衡谐振器中的体声波谐振器的总面积取决于平衡滤波器在衬底上的位置。 此外,平衡滤波器具有基本上相同的实际中心频率。
    • 20. 发明授权
    • Antenna arrangement
    • 天线布置
    • US07505006B2
    • 2009-03-17
    • US11450564
    • 2006-06-08
    • Jani OllikainenJuha ElläTero RantaAnping Zhao
    • Jani OllikainenJuha ElläTero RantaAnping Zhao
    • H01Q1/24
    • H01Q1/243H01Q1/48H01Q5/378H01Q9/38
    • An antenna arrangement including: a coupling element, a conductive element; an extension element for electrically extending the conductive element and a reactive element. A method of creating an antenna arrangement including an antenna element having a first resonant frequency and a first bandwidth, a conductive element, an extension element, for electrically extending the conductive element, having a size and an inductor having an inductance value wherein the extended conductive element has a resonant mode having a second resonant frequency and a second bandwidth, the method including: selecting the size of the extension element, the inductance value and a position of the inductor to tune the resonant mode of the extended conductive element so that the second bandwidth in the region of the first resonant frequency is larger than the first bandwidth in the region of the first resonant frequency.
    • 一种天线装置,包括:耦合元件,导电元件; 用于电气地延伸导电元件和电抗元件的延伸元件。 一种创建天线装置的方法,包括具有第一谐振频率和第一带宽的天线元件,导电元件,用于电延伸导电元件的延伸元件,具有电感值的尺寸和电感器,其中延伸导电 元件具有具有第二谐振频率和第二带宽的谐振模式,所述方法包括:选择扩展元件的尺寸,电感值和电感器的位置以调谐延伸导电元件的谐振模式,使得第二 第一谐振频率区域中的带宽大于第一谐振频率区域中的第一带宽。