公开(公告)号：WO2015017406A1

公开(公告)日：2015-02-05

申请号：PCT/US2014/048608

申请日：2014-07-29

Applicant: RF MICRO DEVICES, INC.

Inventor： LEIPOLD, Dirk, Robert, Walter ,  MAXIM, George ,  SCOTT, Baker

IPC: H03H7/01 ,  H01P1/208 ,  H03H7/09 ,  H03H7/00

CPC classification number: H03H7/09 ,  H01P1/208 ,  H03H7/004 ,  H03H7/1708 ,  H03H7/1741

Abstract: RF filter structures are disclosed that may have multiple filter paths, which are provided by weakly coupled resonators. The filter paths may be interconnected so that additional filter paths may be realized between input and output terminals of the RF filter structures. The weakly coupled resonators from the filter paths may be arranged in a matrix. In one embodiment, an RF filter structure includes a first filter path and a second filter path. The first filter path includes (at least) a first pair of weakly coupled resonators while a second filter path includes (at least) a second pair of weakly coupled resonators. To interconnect the first filter path and the second filter path, a cross-coupling capacitive structure is electrically connected between the first filter path and the second filter path. As such, an additional filtering path may be realized through the interconnection provided by the cross-coupling capacitive structure.

Abstract translation: 公开了可以具有由弱耦合谐振器提供的多个滤波器路径的RF滤波器结构。 滤波器路径可以互连，使得可以在RF滤波器结构的输入和输出端之间实现附加的滤波器路径。 来自滤波器路径的弱耦合谐振器可以被布置成矩阵。 在一个实施例中，RF滤波器结构包括第一滤波器路径和第二滤波器路径。 第一滤波器路径包括（至少）第一对弱耦合谐振器，而第二滤波器路径包括（至少）第二对弱耦合谐振器对。 为了互连第一滤波器路径和第二滤波器路径，交叉耦合电容结构电连接在第一滤波器路径和第二滤波器路径之间。 因此，可以通过由交叉耦合电容结构提供的互连来实现附加的滤波路径。

公开(公告)号：WO2014145422A2

公开(公告)日：2014-09-18

申请号：PCT/US2014/030188

申请日：2014-03-17

Applicant: RF MICRO DEVICES, INC.

Inventor： LEIPOLD, Dirk, Robert, Walter ,  CHANG, Danny, W. ,  MAXIM, George

IPC: H01F17/00

CPC classification number: H01F5/003 ,  H01F17/0013 ,  H01F2017/002 ,  H01F2017/0073

Abstract: The present disclosure provides a vertical inductor structure in which the magnetic field is closed such that the magnetic field of the vertical inductor structure is cancelled in the design direction outside the vertical inductor structure, yielding a small, or substantially zero, coupling factor of the vertical inductor structure. In one embodiment, several vertical inductor structures of the present disclosure can be placed in close proximity to create small resonant circuits and filter chains.

Abstract translation: 本公开提供了一种垂直电感器结构，其中磁场是闭合的，使得垂直电感器结构的磁场在垂直电感器结构外部的设计方向上被抵消，产生小的或 基本上为零，垂直电感器结构的耦合因子。 在一个实施例中，本公开的几个垂直电感器结构可以放置得非常接近以产生小的谐振电路和滤波器链。

公开(公告)号：WO2014145633A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/030431

申请日：2014-03-17

Applicant: RF MICRO DEVICES, INC.

Inventor： LEIPOLD, Dirk, Robert, Walter ,  MAXIM, George ,  SCOTT, Baker ,  CHANG, Danny, W.

IPC: H03H7/09 ,  H03H7/01

CPC classification number: H03F1/3241 ,  H01F27/28 ,  H01F27/385 ,  H03F1/22 ,  H03F1/32 ,  H03F1/34 ,  H03F3/19 ,  H03F3/195 ,  H03F3/211 ,  H03F3/213 ,  H03H7/09 ,  H03H7/1775

Abstract: Radio frequency (RF) filters configured to filter undesired signal components from RF signals are disclosed. In one embodiment, an RF filter (200) includes a first inductor coil (206) having a first winding (210) and a second inductor coil (208) having a second winding (212) and a third winding (214). The second winding (212) of the second inductor coil is configured to have a first mutual magnetic coupling Kl with the first winding (210), while the third winding (214) of the second inductor coil is configured to have a second mutual magnetic coupling K2 with the first winding (210). The second winding (212) is connected to the third winding (214) such that the first mutual magnetic coupling Kl and the second mutual magnetic coupling K2 are in opposition. In this manner, the first inductor coil and the second inductor coil may be provided in a compact arrangement while providing weak mutual magnetic coupling between the first inductor coil and the second inductor coil.

Abstract translation: 公开了用于从RF信号滤除不期望的信号分量的射频（RF）滤波器。 在一个实施例中，RF滤波器（200）包括具有第一绕组（210）的第一电感线圈（206）和具有第二绕组（212）和第三绕组（214）的第二电感线圈（208）。 第二电感线圈的第二绕组（212）被配置为具有与第一绕组（210）的第一互耦合K1，而第二电感线圈的第三绕组（214）构造成具有第二互耦合 K2与第一个绕组（210）。 第二绕组（212）连接到第三绕组（214），使得第一互磁耦合器K1和第二互磁耦合器K2相对。 以这种方式，第一电感线圈和第二电感线圈可以以紧凑的布置提供，同时在第一电感线圈和第二电感线圈之间提供弱的互耦合。

公开(公告)号：WO2014145623A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/030419

申请日：2014-03-17

Applicant: RF MICRO DEVICES, INC.

Inventor： MAXIM, George ,  SCOTT, Baker ,  TSAI, Ming ,  SHIRVANI, Alireza

IPC: H03F3/195 ,  H03F3/189 ,  H03F1/14 ,  H01L23/66 ,  H03F1/56 ,  H03F1/34

CPC classification number: H03F3/193 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/66 ,  H01L24/16 ,  H01L2223/6644 ,  H01L2224/16225 ,  H03F1/14 ,  H03F1/347 ,  H03F1/565 ,  H03F3/195 ,  H03F2200/451

Abstract: This disclosure relates generally to radio frequency (RF) amplification devices and methods of operating the same. In one embodiment, an RF amplification device includes an RF amplification circuit and a stabilizing transformer network. The RF amplification circuit defines an RF signal path and is configured to amplify an RF signal propagating in the RF signal path. The stabilizing transformer network is operably associated with the RF signal path defined by the RF amplification circuit. Furthermore, the stabilizing transformer network is configured to reduce parasitic coupling along the RF signal path of the RF amplification circuit as the RF signal propagates in the RF signal path. In this manner, the stabilizing transformer network allows for inexpensive components to be used to reduce parasitic coupling while allowing for smaller distances along the RF signal path.

Abstract translation: 本公开一般涉及射频（RF）放大装置及其操作方法。 在一个实施例中，RF放大装置包括RF放大电路和稳定变压器网络。 RF放大电路定义RF信号路径并且被配置为放大在RF信号路径中传播的RF信号。 稳定变压器网络与由RF放大电路限定的RF信号路径可操作地相关联。 此外，稳定变压器网络被配置为当RF信号在RF信号路径中传播时减小沿着RF放大电路的RF信号路径的寄生耦合。 以这种方式，稳定变压器网络允许使用便宜的部件来减少寄生耦合，同时允许沿着RF信号路径的较小的距离。