公开(公告)号：US09559745B2

公开(公告)日：2017-01-31

申请号：US14171994

申请日：2014-02-04

Applicant: RF Micro Devices, Inc.

Inventor： Jeppe Korshøj Bendixen ,  Daniel Charles Kerr ,  Christian Rye Iversen

IPC: H04B1/44 ,  H01Q1/24

CPC classification number: H04B1/44 ,  H01Q1/242

Abstract: Antenna tuning switch circuitry includes an input port, a shunt switch, control circuitry, and an integrated ground. The shunt switch is coupled between the input port and the integrated ground. The control circuitry includes a control signal input port, a switch driver output port coupled to the shunt switch, and a ground connection port coupled to the integrated ground. The shunt switches, the RF input ports, the control circuitry, and the integrated ground are monolithically integrated on a single semiconductor die. The antenna tuning switch circuitry is adapted to selectively couple the input port to the integrated ground in order to alter one or more operating parameters of an attached antenna. By monolithically integrating the shunt switch together with the control circuitry and the integrated ground, the ON state impedance and the parasitic OFF state impedance of the antenna tuning switch circuitry can be significantly improved.

Abstract translation: 天线调谐开关电路包括输入端口，分流开关，控制电路和集成接地。 分流开关耦合在输入端口和集成接地之间。 控制电路包括控制信号输入端口，耦合到并联开关的开关驱动器输出端口以及耦合到集成接地的接地连接端口。 分流开关，RF输入端口，控制电路和集成接地单个集成在单个半导体管芯上。 天线调谐开关电路适于选择性地将输入端口耦合到集成地，以便改变连接的天线的一个或多个操作参数。 通过将分流开关与控制电路和集成接地单片集成，可以显着地改善天线调谐开关电路的导通状态阻抗和寄生OFF状态阻抗。

公开(公告)号：US20140220911A1

公开(公告)日：2014-08-07

申请号：US14171994

申请日：2014-02-04

Applicant: RF Micro Devices, Inc.

Inventor： Jeppe Korshøj Bendixen ,  Daniel Charles Kerr ,  Christian Rye Iversen

IPC: H01Q1/50 ,  H04B1/44

CPC classification number: H04B1/44 ,  H01Q1/242

Abstract: Antenna tuning switch circuitry includes an input port, a shunt switch, control circuitry, and an integrated ground. The shunt switch is coupled between the input port and the integrated ground. The control circuitry includes a control signal input port, a switch driver output port coupled to the shunt switch, and a ground connection port coupled to the integrated ground. The shunt switches, the RF input ports, the control circuitry, and the integrated ground are monolithically integrated on a single semiconductor die. The antenna tuning switch circuitry is adapted to selectively couple the input port to the integrated ground in order to alter one or more operating parameters of an attached antenna. By monolithically integrating the shunt switch together with the control circuitry and the integrated ground, the ON state impedance and the parasitic OFF state impedance of the antenna tuning switch circuitry can be significantly improved.

Abstract translation: 天线调谐开关电路包括输入端口，分流开关，控制电路和集成接地。 分流开关耦合在输入端口和集成接地之间。 控制电路包括控制信号输入端口，耦合到并联开关的开关驱动器输出端口以及耦合到集成接地的接地连接端口。 分流开关，RF输入端口，控制电路和集成接地单个集成在单个半导体管芯上。 天线调谐开关电路适于选择性地将输入端口耦合到集成地，以便改变连接的天线的一个或多个操作参数。 通过将分流开关与控制电路和集成接地单片集成，可以显着地改善天线调谐开关电路的导通状态阻抗和寄生OFF状态阻抗。

公开(公告)号：US09799444B2

公开(公告)日：2017-10-24

申请号：US14840216

申请日：2015-08-31

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones ,  John Robert Siomkos ,  Jeppe Korshøj Bendixen ,  John Avery Capwell ,  Jayanti Jaganatha Rao

IPC: H01P5/18 ,  H01F38/14 ,  H03H7/46 ,  H01P1/10 ,  H03H7/48 ,  H01F21/12

CPC classification number: H01F38/14 ,  H01F21/12 ,  H01F2038/146 ,  H03H7/465 ,  H03H7/48

Abstract: This disclosure relates generally to directional couplers. In one embodiment, a directional coupler includes a first port, a second port, a third port, a first inductive element, a second inductive element, a first switchable path, and a second switchable path. The first inductive element is coupled between the first port and the second port, while the second inductive element is mutually coupled to the first inductive element. The first switchable path is configured to be opened and closed, wherein the first switchable path is coupled between a first location of the second inductive element and the third port. The second switchable path is configured to be opened and closed, wherein the second switchable path is coupled between a second location of the second inductive element and the third port. In this manner, a directivity of the directional coupler can be switched between a forward direction and a reverse direction.

公开(公告)号：US20160065167A1

公开(公告)日：2016-03-03

申请号：US14840216

申请日：2015-08-31

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones ,  John Robert Siomkos ,  Jeppe Korshøj Bendixen ,  John Avery Capwell ,  Jayanti Jaganatha Rao

IPC: H03H7/46 ,  H01F38/14

CPC classification number: H01F38/14 ,  H01F21/12 ,  H01F2038/146 ,  H03H7/465 ,  H03H7/48

Abstract: This disclosure relates generally to directional couplers. In one embodiment, a directional coupler includes a first port, a second port, a third port, a first inductive element, a second inductive element, a first switchable path, and a second switchable path. The first inductive element is coupled between the first port and the second port, while the second inductive element is mutually coupled to the first inductive element. The first switchable path is configured to be opened and closed, wherein the first switchable path is coupled between a first location of the second inductive element and the third port. The second switchable path is configured to be opened and closed, wherein the second switchable path is coupled between a second location of the second inductive element and the third port. In this manner, a directivity of the directional coupler can be switched between a forward direction and a reverse direction.

Abstract translation: 本公开一般涉及定向耦合器。 在一个实施例中，定向耦合器包括第一端口，第二端口，第三端口，第一感应元件，第二感应元件，第一可切换路径和第二可切换路径。 第一电感元件耦合在第一端口和第二端口之间，而第二电感元件相互耦合到第一电感元件。 第一可切换路径被配置为打开和关闭，其中第一可切换路径耦合在第二电感元件的第一位置和第三端口之间。 第二可切换路径被配置为打开和关闭，其中第二可切换路径耦合在第二电感元件的第二位置和第三端口之间。 以这种方式，定向耦合器的方向性可以在正向和反向之间切换。