公开(公告)号：US20150091653A1

公开(公告)日：2015-04-02

申请号：US14501453

申请日：2014-09-30

Applicant: RF Micro Devices, Inc.

Inventor： Kevin Wesley Kobayashi ,  Hamhee Jeon

IPC: H03F3/21 ,  H03F1/02 ,  H03F3/19

CPC classification number: H03F1/0288 ,  H03F1/0233 ,  H03F1/3247 ,  H03F1/56 ,  H03F3/19 ,  H03F3/193 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/192 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/451

Abstract: A reconfigurable load modulation amplifier having a carrier amplifier and a peak amplifier that are coupled in parallel is disclosed. The peak amplifier provides additional power amplification when the carrier amplifier is driven into saturation. A quadrature coupler coupled between the carrier amplifier and the peak amplifier is configured to combine power from both the carrier amplifier and the peak amplifier for output through an output load terminal. The reconfigurable load modulation amplifier further includes control circuitry coupled to an isolation port of the quadrature coupler and configured to provide adjustable impedance at the isolation port of the quadrature coupler. As such, impedance at the isolation port of the quadrature coupler is tunable such that at least a carrier or peak amplifier is presented with a quadrature coupler load impedance that ranges from around about half an output load termination impedance to around about twice the output load termination impedance.

Abstract translation: 公开了具有并联耦合的载波放大器和峰值放大器的可重构负载调制放大器。 当载波放大器被驱动到饱和时，峰值放大器提供额外的功率放大。 耦合在载波放大器和峰值放大器之间的正交耦合器被配置为组合来自载波放大器和峰值放大器的功率，用于通过输出负载端子输出。 可重构负载调制放大器还包括耦合到正交耦合器的隔离端口并被配置为在正交耦合器的隔离端口处提供可调阻抗的控制电路。 因此，正交耦合器的隔离端口处的阻抗是可调谐的，使得至少一个载波或峰值放大器呈现正交耦合器负载阻抗，该阻抗的大约约一半的输出负载终端阻抗到大约两倍的输出负载终端 阻抗。

公开(公告)号：US20150087246A1

公开(公告)日：2015-03-26

申请号：US14498991

申请日：2014-09-26

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04B1/00

CPC classification number: H04B1/40 ,  H04B1/0057 ,  H04B7/0413 ,  H04B15/00 ,  H04L5/08 ,  H04L5/14

Abstract: A first RF diplexer, which includes a first RF highpass with tunable notch filter and a first RF lowpass with tunable notch filter, is disclosed. The first RF diplexer has a first main port, a second main port, and a first common port. The first RF highpass with tunable notch filter is coupled between the first main port and the first common port. The first RF lowpass with tunable notch filter is coupled between the second main port and the first common port. The first RF highpass with tunable notch filter has a first highpass notch frequency, which is tunable. The first RF lowpass with tunable notch filter has a first lowpass notch frequency, which is tunable.

Abstract translation: 公开了一种第一RF双工器，其包括具有可调陷波滤波器的第一RF高通和具有可调陷波滤波器的第一RF低通。 第一RF双工器具有第一主端口，第二主端口和第一公共端口。 具有可调陷波滤波器的第一RF高通耦合在第一主端口和第一公共端口之间。 具有可调陷波滤波器的第一RF低通耦合在第二主端口和第一公共端口之间。 具有可调陷波滤波器的第一个高频通道具有可调谐的第一高通陷波频率。 具有可调陷波滤波器的第一个RF低通滤波器具有可调谐的第一低通陷波频率。

公开(公告)号：US20150085724A1

公开(公告)日：2015-03-26

申请号：US14498746

申请日：2014-09-26

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04B1/00 ,  H04L5/08 ,  H04B7/04 ,  H04B15/00 ,  H04B1/40

CPC classification number: H04B1/40 ,  H04B1/0057 ,  H04B7/0413 ,  H04B15/00 ,  H04L5/08 ,  H04L5/14

Abstract: A first RF diplexer, which includes a first hybrid RF coupler, a second hybrid RF coupler, a first RF filter, and a second RF filter, is disclosed. The first hybrid RF coupler has a first main port, a first in-phase port, a first quadrature-phase port, and a first isolation port, which is coupled to a primary RF antenna. The second hybrid RF coupler has a second main port, a second in-phase port, and a second quadrature-phase port. The first RF filter is coupled between the first in-phase port and the second in-phase port. The second RF filter is coupled between the first quadrature-phase port and the second quadrature-phase port.

Abstract translation: 公开了一种第一RF双工器，其包括第一混合RF耦合器，第二混合RF耦合器，第一RF滤波器和第二RF滤波器。 第一混合RF耦合器具有耦合到主RF天线的第一主端口，第一同相端口，第一正交相位端口和第一隔离端口。 第二混合RF耦合器具有第​​二主端口，第二同相端口和第二正交端口。 第一RF滤波器耦合在第一同相端口和第二同相端口之间。 第二RF滤波器耦合在第一正交相位端口和第二正交相位端口之间。

公开(公告)号：US20150084715A1

公开(公告)日：2015-03-26

申请号：US14497471

申请日：2014-09-26

Applicant: RF Micro Devices, Inc.

Inventor： David E. Jones

IPC: H01P5/18

CPC classification number: H03H7/40 ,  H03F1/565 ,  H03F3/189 ,  H03F3/195 ,  H03F2200/387 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2200/541

Abstract: A directional coupler that provides directional coupling and an impedance transformation is disclosed. In one embodiment, the directional coupler includes a low pass filter having a filter inductor that is coupled between an input port and an output port and a filter capacitor coupled between the output port and ground. The directional coupler also includes detector circuitry wherein the filter inductor is magnetically coupled to a detector inductor in the detector circuitry such that current passing through the filter inductor generates a detector current through the detector inductor. Furthermore, the low pass filter and the detector circuitry cooperate to transform a first impedance presented at the output port to a second impedance presented at the input port. Accordingly, the filter inductor is used in the low pass filter to provide an impedance transformation so as to operate with the detector circuitry to provide a detector current for directional coupling.

Abstract translation: 公开了一种提供定向耦合和阻抗变换的定向耦合器。 在一个实施例中，定向耦合器包括低通滤波器，其具有耦合在输入端口和输出端口之间的滤波电感器以及耦合在输出端口和地之间的滤波电容器。 定向耦合器还包括检测器电路，其中滤波电感器磁耦合到检测器电路中的检测器电感器，使得通过滤波电感器的电流产生通过检测器电感器的检测器电流。 此外，低通滤波器和检测器电路协作以将在输出端口处呈现的第一阻抗变换为在输入端口处呈现的第二阻抗。 因此，滤波电感器用于低通滤波器以提供阻抗变换，以便与检测器电路一起工作以提供用于定向耦合的检测器电流。

公开(公告)号：US08981839B2

公开(公告)日：2015-03-17

申请号：US13914888

申请日：2013-06-11

Applicant: RF Micro Devices, Inc.

Inventor： Michael R. Kay ,  Manbir Singh Nag ,  Philippe Gorisse

IPC: G05F1/10 ,  H03K17/687

CPC classification number: H03K17/687 ,  G06F1/263 ,  Y10T307/50

Abstract: Circuitry, which includes a first switching transistor element having a first gate, a second switching transistor element having a second gate, a third switching transistor element having a third gate, and a fourth switching transistor element having a fourth gate, is disclosed. The first switching transistor element and the third switching transistor element are coupled in series between a first power source and a first downstream circuit. The second switching transistor element and the fourth switching transistor element are coupled in series between a second power source and the first downstream circuit. A voltage swing at the first gate and a voltage swing at the second gate are both about equal to a first voltage magnitude. A voltage swing at the third gate and a voltage swing at the fourth gate are both about equal to a second voltage magnitude.

Abstract translation: 公开了一种电路，其包括具有第一栅极的第一开关晶体管元件，具有第二栅极的第二开关晶体管元件，具有第三栅极的第三开关晶体管元件和具有第四栅极的第四开关晶体管元件。 第一开关晶体管元件和第三开关晶体管元件串联在第一电源和第一下游电路之间。 第二开关晶体管元件和第四开关晶体管元件串联耦合在第二电源和第一下游电路之间。 第一栅极处的电压摆动和第二栅极处的电压摆动都大致等于第一电压幅度。 第三栅极处的电压摆动和第四栅极处的电压摆动大约等于第二电压幅度。

公开(公告)号：US20150065070A1

公开(公告)日：2015-03-05

申请号：US14450204

申请日：2014-08-01

Applicant: RF Micro Devices, Inc.

Inventor： George Maxim ,  Dirk Robert Walter Leipold ,  Baker Scott

IPC: H04B1/04 ,  H04B1/034

CPC classification number: H04B1/0475 ,  H03F1/565 ,  H03F3/193 ,  H03F3/245 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/267 ,  H03F2200/451 ,  H03F2203/7209 ,  H03H7/09 ,  H03H7/1775 ,  H03H2210/025 ,  H04B1/0458

Abstract: RF communications circuitry, which includes a first tunable RF filter and an RF power amplifier (PA), is disclosed. The first tunable RF filter includes a pair of weakly coupled resonators, and receives and filters a first upstream RF signal to provide a first filtered RF signal. The RF PA is coupled to the first tunable RF filter, and receives and amplifies an RF input signal to provide an RF output signal.

Abstract translation: 公开了包括第一可调谐RF滤波器和RF功率放大器（PA）的RF通信电路。 第一可调谐RF滤波器包括一对弱耦合谐振器，并且接收和滤波第一上行RF信号以提供第一滤波RF信号。 RF PA耦合到第一可调谐RF滤波器，并且接收和放大RF输入信号以提供RF输出信号。

公开(公告)号：US20150048891A1

公开(公告)日：2015-02-19

申请号：US14458341

申请日：2014-08-13

Applicant: RF Micro Devices, Inc.

Inventor： Ashraf Rozek ,  Michael R. Kay

IPC: H02M3/158 ,  H03F3/19 ,  H03F3/21 ,  H03F1/02

CPC classification number: H02M3/158 ,  H02M3/07 ,  H02M2001/007 ,  H03F1/0227 ,  H03F3/005 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: A DC-DC converter, which provides a converter output voltage using a DC source voltage, is disclosed. The DC-DC converter includes converter control circuitry and a boosting charge pump. The converter control circuitry selects one of a first boost operating mode, a second boost operating mode, and a boost disabled mode based on the DC source voltage. During the boost disabled mode, the boosting charge pump presents a high impedance at a charge pump output of the boosting charge pump. Otherwise, the boosting charge pump provides a charge pump output voltage. During the first boost operating mode, a nominal value of the charge pump output voltage is equal to about one and one-half times the DC source voltage. During the second boost operating mode, a nominal value of the charge pump output voltage is equal to about two times the DC source voltage.

Abstract translation: 公开了一种使用DC源电压提供转换器输出电压的DC-DC转换器。 DC-DC转换器包括转换器控制电路和升压电荷泵。 转换器控制电路基于直流电源电压选择第一升压操作模式，第二升压操作模式和升压禁止模式中的一个。 在升压禁用模式期间，升压电荷泵在增压电荷泵的电荷泵输出处呈现高阻抗。 否则，升压电荷泵提供电荷泵输出电压。 在第一升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约一倍。 在第二升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约两倍。

公开(公告)号：US20150038101A1

公开(公告)日：2015-02-05

申请号：US14450199

申请日：2014-08-01

Applicant: RF Micro Devices, Inc.

Inventor： George Maxim ,  Dirk Robert Walter Leipold ,  Baker Scott

IPC: H03J3/06

CPC classification number: H03F3/193 ,  H03F1/56 ,  H03F1/565 ,  H03F3/245 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/165 ,  H03F2200/222 ,  H03F2200/267 ,  H03F2200/294 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2203/7209 ,  H03H7/09 ,  H03H7/1775 ,  H03H7/38 ,  H03H2210/012 ,  H03H2210/025 ,  H03H2210/04 ,  H03J3/06 ,  H03J5/242 ,  H04B1/04

Abstract: RF communications circuitry, which includes a first tunable RF filter and a first RF low noise amplifier (LNA) is disclosed. The first tunable RF filter includes a pair of weakly coupled resonators, and receives and filters a first upstream RF signal to provide a first filtered RF signal. The first RF LNA is coupled to the first tunable RF filter, and receives and amplifies an RF input signal to provide an RF output signal.

Abstract translation: 公开了包括第一可调谐RF滤波器和第一RF低噪声放大器（LNA）的RF通信电路。 第一可调谐RF滤波器包括一对弱耦合谐振器，并且接收和滤波第一上行RF信号以提供第一滤波RF信号。 第一RF LNA耦合到第一可调谐RF滤波器，并且接收和放大RF输入信号以提供RF输出信号。

公开(公告)号：US20150038094A1

公开(公告)日：2015-02-05

申请号：US14450028

申请日：2014-08-01

Applicant: RF Micro Devices, Inc.

Inventor： George Maxim ,  Dirk Robert Walter Leipold ,  Baker Scott

IPC: H04B1/44 ,  H04B1/40

CPC classification number: H04B1/0458 ,  H03F1/565 ,  H03F3/193 ,  H03F3/245 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/267 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2203/7209 ,  H03H7/09 ,  H03H7/1775 ,  H03H2210/012 ,  H03H2210/025 ,  H03H2210/04

Abstract: Embodiments of radio frequency (RF) filter front-end circuitry are disclosed that include a tunable RF filter structure having weakly coupled resonators and a Voltage Standing Wave Ratio (VSWR) control circuit. The VSWR control circuit is configured to detect a VSWR at a terminal of the tunable RF filter structure and to dynamically tune the tunable RF filter structure based on the VSWR. In this manner, the VSWR control circuit tunes the tunable RF filter structure to improve performance of tunable RF filter structure over variations in the VSWR.

Abstract translation: 公开了射频（RF）滤波器前端电路的实施例，其包括具有弱耦合谐振器和电压驻波比（VSWR）控制电路的可调RF滤波器结构。 VSWR控制电路被配置为检测可调谐RF滤波器结构的终端处的VSWR，并且基于VSWR动态地调谐可调谐RF滤波器结构。 以这种方式，VSWR控制电路调谐可调谐RF滤波器结构，以改善可变RF滤波器结构的性能，而不是VSWR的变化。

公开(公告)号：US20150035637A1

公开(公告)日：2015-02-05

申请号：US14450156

申请日：2014-08-01

Applicant: RF Micro Devices, Inc.

Inventor： George Maxim ,  Dirk Robert Walter Leipold ,  Baker Scott

IPC: H01F27/29 ,  H01F17/02

CPC classification number: H01F17/0013 ,  H03F1/565 ,  H03F3/193 ,  H03F3/245 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/267 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2203/7209 ,  H03H7/09 ,  H03H7/1775 ,  H03H2210/012 ,  H03H2210/025 ,  H03H2210/04 ,  H04B1/525

Abstract: Embodiments of an apparatus that includes a substrate and an inductor residing in the substrate are disclosed. In one embodiment, the inductor is formed as a conductive path that extends from a first terminal to a second terminal. The conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume. Since the shape of the conductive path corresponds to the 2D lobe laid over a 3D volume, the magnetic field generated by the inductor has magnetic field lines that are predominately destructive outside the inductor and magnetic field lines that are predominately constructive inside the inductor. In this manner, the inductor can maintain a high quality (Q) factor while being placed close to other components.

Abstract translation: 公开了包括衬底和驻留在衬底中的电感器的装置的实施例。 在一个实施例中，电感器形成为从第一端子延伸到第二端子的导电路径。 导电路径具有对应于放置在三维（3D）体积上的二维（2D）波瓣的形状。 由于导电路径的形状对应于放置在3D体积上的2D波瓣，由电感器产生的磁场具有在电感器外部主要破坏的磁场线和在电感器内主要构造的磁场线。 以这种方式，电感器可以在靠近其他部件放置的同时保持高品质（Q）因子。