公开(公告)号：EP2013939A4

公开(公告)日：2012-12-26

申请号：EP07730685

申请日：2007-04-17

申请人： POWERWAVE COMTEK OY

发明人： NÄRHI HARRI

IPC分类号： H01P7/04 ,  H01L41/083

CPC分类号： H01P7/04 ,  H01L41/04 ,  H01L41/094

摘要： A resonator is provided with a tuning element based on piezoelectricity. The piezoelectric basic element includes at least one piezoelectric layer and a metal layer. Such a basic element is first coated with a thin insulating layer and then with a good conductor. The thickness of the conductive coating is greater than the skin depth of a field corresponding to the operating frequency of the structure in the conductor. The tuning element formed in this manner is fastened on, e.g., some inner surface of the resonator cavity and acts to change the natural frequency of the resonator by electric control. When using the tuning element, no mechanical arrangement is required for moving the tuning element. Furthermore, the tuning element does not cause considerable dielectric losses nor intermodulation when being in a radiofrequency electromagnetic field, because the field cannot significantly penetrate through said conductive coating into the piezoelectric material.

公开(公告)号：EP2151065A1

公开(公告)日：2010-02-10

申请号：EP08736851.0

申请日：2008-04-18

申请人： Powerwave Comtek Oy

发明人： NÄRHI, Harri

IPC分类号： H04B1/48

CPC分类号： H04B1/48 ,  H03F3/189 ,  H03F3/72 ,  H03F2200/294 ,  H03F2203/7239 ,  H04B1/18 ,  H04B1/745

摘要： An amplifier unit (600) to be placed in an antenna mast and being pursuant to a radio system, which uses time division duplex. It comprises a transmitting (621 ) and receiving (622) branch in parallel, and the transmitting branch is used as a bypass path for the LNA (613) in the receiving branch. The unit is set to the transmitting mode, receiving mode and bypass mode by means of pin diode switches (D1-D4, D7-D12). A passive bypass mode comes automatically into effect, if the unit loses its supply voltage. At least one pin switch (D7, D8, D9) is located transversely in the transmitting branch for switching it off, when the unit is set to the receiving mode. The structure comprises advantageously another, redundant, transmitting branch (622) with series switches (D10, D11, D12), which is used for improving on the characteristics of the transmission path of the transmitting signals, when the biasing of the pin switches is possible. The transmitting branches do not significantly degrade the received and amplified signal, because they are switched off when the unit is in the receiving mode, in which case the signals reflected from the lower end of the intermediate cable (CBL) can not propagate back to the input side of the LNA. The transmitting path and receiving path function, although the unit would loose its supply voltage.

摘要翻译： 放大器单元（600）放置在天线桅杆中并依照使用时分双工的无线电系统。 它包括并行的发送（621）和接收（622）分支，发送分支用作接收分支中的LNA（613）的旁路路径。 该单元通过引脚二极管开关（D1-D4，D7-D12）设置为发送模式，接收模式和旁路模式。 如果设备失去供电电压，无源旁路模式自动生效。 当本机设置为接收模式时，至少有一个针脚开关（D7，D8，D9）横向位于发送支路中以关闭它。 该结构有利地包括具有串联开关（D10，D11，D12）的另一个冗余的发送支路（622），其用于改善发送信号的传输路径的特性，当可以实现引脚开关的偏置时 。 发射支路不会显着降低接收和放大的信号，因为它们在单元处于接收模式时关闭，在这种情况下，从中间电缆（CBL）的下端反射的信号不能传播回到 LNA的输入端。 发送路径和接收路径功能，虽然该单元将失去其电源电压。

公开(公告)号：EP2013939A1

公开(公告)日：2009-01-14

申请号：EP07730685.0

申请日：2007-04-17

申请人： Powerwave Comtek Oy

发明人： NÄRHI, Harri

IPC分类号： H01P7/04 ,  H01L41/083

CPC分类号： H01P7/04 ,  H01L41/04 ,  H01L41/094

摘要： A resonator is provided with a tuning element based on piezoelectricity. The piezoelectric basic element includes at least one piezoelectric layer and a metal layer. Such a basic element is first coated with a thin insulating layer and then with a good conductor. The thickness of the conductive coating is greater than the skin depth of a field corresponding to the operating frequency of the structure in the conductor. The tuning element formed in this manner is fastened on, e.g., some inner surface of the resonator cavity and acts to change the natural frequency of the resonator by electric control. When using the tuning element, no mechanical arrangement is required for moving the tuning element. Furthermore, the tuning element does not cause considerable dielectric losses nor intermodulation when being in a radiofrequency electromagnetic field, because the field cannot significantly penetrate through said conductive coating into the piezoelectric material.

公开(公告)号：EP1886380A1

公开(公告)日：2008-02-13

申请号：EP06725956.4

申请日：2006-05-18

申请人： Powerwave Comtek Oy

发明人： STOYANOV, Vladimir

IPC分类号： H01Q3/26 ,  H01Q21/29 ,  H01Q3/32 ,  H01Q3/36 ,  H01P1/18

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.

公开(公告)号：EP1989754B1

公开(公告)日：2012-09-26

申请号：EP07704849.4

申请日：2007-02-14

申请人： Powerwave Comtek Oy

发明人： TERVO, Matti

IPC分类号： H01P5/18

CPC分类号： H01P5/183 ,  H01P5/185

公开(公告)号：EP1817846A1

公开(公告)日：2007-08-15

申请号：EP05803809.2

申请日：2005-11-07

申请人： Powerwave Comtek Oy

发明人： ALA-KOJOLA, Jouni ,  NIIRANEN, Erkki

IPC分类号： H04B1/04 ,  H04B7/02 ,  H01P7/04

CPC分类号： H04B7/0854 ,  H01P1/2053 ,  H04B1/44

摘要： An arrangement for filtering the transmitting signals in a radio device using frequency division duplex. In a radio transmitter, in which the transmitting signal is divided to a plurality of antennas (ANT1 , ANT2, ANT3) radiating to different sectors, the filtering required in transmitting is mostly carried out by a shared transmitting filter (240) before the transmitting signal is divided. The rest of the filtering is carried out separately on each partial transmitting signal (T1; T2; T3) in the reduced transmitting side (TXF1 ; TXF2; TXF3) of the duplex filter. The filters and the divider (250) preferably form an integrated filter unit, in which they are connected to each other by simple coupling elements. The space required by the filters of the antenna end of the radio device is significantly reduced, and the material and assembly costs of the antenna end in production are reduced.

公开(公告)号：EP1886380B1

公开(公告)日：2010-08-18

申请号：EP06725956.4

申请日：2006-05-18

申请人： Powerwave Comtek Oy

发明人： STOYANOV, Vladimir

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

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

公开(公告)号：EP2022130A4

公开(公告)日：2009-05-13

申请号：EP07730703

申请日：2007-04-23

申请人： POWERWAVE COMTEK OY

发明人： NIIRANEN ERKKI

IPC分类号： H01P5/18

CPC分类号： H01P5/185 ,  H01P5/187

摘要： A directional coupler (500), which comprises a dielectric substrate (501) on top of a metal plate (510), is functioning as a ground plane. The transmission path is a suspended stripling so that there is a recess on the ground plane below the transmission conductor (520) being on the surface of the substrate. The sensing conductor (530) is a very small-sized conductive strip on the surface of the substrate. It has been connected from its head end to the measurement port (P3) and from its tail end via a termination resistor (550) to a small ground strip (515). The ground strip is next to the sensing conductor on the side of the output port (P2) of the directional coupler. With such an asymmetric structure, some directivity is obtained despite the small size of the sensing conductor. Also below the sensing conductor (530) there is a recess (506) on the ground plane, which joins the recess below the transmission conductor (520). By dimensioning the recess below the sensing conductor suitably, the velocities of the even and odd waveform occurring in the line constituted by it and the ground plane are obtained the same and thus directivity can be improved. The directional coupler is very space saving on the circuit board. As the substrate, an ordinary circuit board material can be used, whereby the board can have in addition to the directional coupler also other parts of radio-frequency circuits. The directional coupler does not require tuning in production.

摘要翻译： 在金属板（510）的顶部上包​​括电介质基板（501）的定向耦合器（500）用作接地平面。 传输路径是悬垂条纹，使得在基板的表面上的传输导体（520）下方的接地平面上存在凹部。 感测导体（530）是在衬底的表面上的非常小尺寸的导电条。 已经从其头端连接到测量端口（P3），并且通过终端电阻（550）从其尾端连接到小接地片（515）。 接地条位于定向耦合器的输出端口（P2）一侧的传感导体旁边。 利用这种不对称结构，尽管感测导体的尺寸小，但是获得了一些方向性。 在感测导体（530）的下方，在接地平面上还有一个凹槽（506），它与传输导体（520）下面的凹槽连接。 通过适当地将传感导体下方的凹部尺寸确定，得到由其构成的线和接地平面中出现的偶数和奇数波形的速度相同，从而可以提高方向性。 定向耦合器在电路板上节省空间。 作为基板，可以使用普通的电路板材料，由此除了定向耦合器之外，板还可以具有射频电路的其它部分。 定向耦合器在生产中不需要调谐。

公开(公告)号：EP2022130A1

公开(公告)日：2009-02-11

申请号：EP07730703.1

申请日：2007-04-23

申请人： Powerwave Comtek Oy

发明人： NIIRANEN, Erkki

IPC分类号： H01P5/18

CPC分类号： H01P5/185 ,  H01P5/187

摘要： A directional coupler (500), which comprises a dielectric substrate (501) on top of a metal plate (510), is functioning as a ground plane. The transmission path is a suspended stripling so that there is a recess on the ground plane below the transmission conductor (520) being on the surface of the substrate. The sensing conductor (530) is a very small-sized conductive strip on the surface of the substrate. It has been connected from its head end to the measurement port (P3) and from its tail end via a termination resistor (550) to a small ground strip (515). The ground strip is next to the sensing conductor on the side of the output port (P2) of the directional coupler. With such an asymmetric structure, some directivity is obtained despite the small size of the sensing conductor. Also below the sensing conductor (530) there is a recess (506) on the ground plane, which joins the recess below the transmission conductor (520). By dimensioning the recess below the sensing conductor suitably, the velocities of the even and odd waveform occurring in the line constituted by it and the ground plane are obtained the same and thus directivity can be improved. The directional coupler is very space saving on the circuit board. As the substrate, an ordinary circuit board material can be used, whereby the board can have in addition to the directional coupler also other parts of radio-frequency circuits. The directional coupler does not require tuning in production.

摘要翻译： 包括在金属板（510）顶部上的电介质衬底（501）的定向耦合器（500）用作接地平面。 传输路径是悬置的条纹，使得在传输导体（520）下方的接地平面上存在位于衬底表面上的凹陷。 感测导体（530）是衬底表面上的非常小尺寸的导电条。 它已经从其首端连接到测量端口（P3），并从其尾端经由终端电阻器（550）连接到小型接地带（515）。 接地条位于定向耦合器输出端口（P2）侧的感应导体旁边。 采用这种不对称结构，尽管感应导体尺寸较小，但仍可获得一些指向性。 同样在传感导体（530）的下方，在接地平面上有一个凹槽（506），它与传输导体（520）下方的凹槽相连。 通过适当地确定传感导体下面的凹槽的尺寸，可以获得由它构成的直线和接地平面中出现的偶数和奇数波形的速度相同，因此可以提高方向性。 定向耦合器在电路板上非常节省空间。 作为衬底，可以使用普通的电路板材料，由此电路板除了定向耦合器之外还可以具有射频电路的其他部分。 定向耦合器不需要调整生产。

公开(公告)号：EP1889373A1

公开(公告)日：2008-02-20

申请号：EP06725961.4

申请日：2006-05-22

申请人： Powerwave Comtek Oy

发明人： NIEMI, Mika

IPC分类号： H04B1/18 ,  H03F3/68

CPC分类号： H03F1/52 ,  H03F1/26 ,  H03F3/191 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/7239 ,  H04B1/18

摘要： The invention relates to an arrangement for bypassing a low noise amplifier unit in the front stage of a radio receiver, especially intended for the base stations of mobile communication networks. The front stage includes, in succession, a divider (420), an amplifier unit (430) comprising two parallel, low noise amplifier branches, and a first combiner (450). The by-pass arrangement includes a second combiner (443), by which the halves (E11, E12) of the received signal are combined immediately after the divider before the amplification. A change-over switch (SW) is then used to select either the signal that has propagated through the amplifier unit and then combined (G-Ε1) or the signal (E1’) that has been directly combined as the output signal of the front stage. Due to the invention, the noise figure of the front stage is improved and the integration of its structure is facilitated.