公开(公告)号：US20140266531A1

公开(公告)日：2014-09-18

申请号：US14215800

申请日：2014-03-17

Applicant: RF Micro Devices, Inc.

Inventor： Dirk Robert Walter Leipold ,  George Maxim ,  Baker Scott ,  Danny W. Chang

IPC: H01F27/38 ,  H01F27/28

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 (e.g., noise and harmonics) from RF signals are disclosed. In one embodiment, an RF filter includes a first inductor coil having a first winding and a second inductor coil having a second winding and a third winding. The second winding of the second inductor coil is configured to have a first mutual magnetic coupling with the first winding, while the third winding of the second inductor coil is configured to have a second mutual magnetic coupling with the first winding. The second winding is connected to the third winding such that the first mutual magnetic coupling and the second mutual magnetic coupling 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信号滤波不期望的信号分量（例如，噪声和谐波）的射频（RF）滤波器。 在一个实施例中，RF滤波器包括具有第一绕组的第一电感线圈和具有第二绕组和第三绕组的第二电感线圈。 第二电感线圈的第二绕组被配置为具有与第一绕组的第一互耦合，而第二电感线圈的第三绕组被配置为具有与第一绕组的第二互耦合耦合。 第二绕组连接到第三绕组，使得第一互磁耦合和第二互磁耦合相对。 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：US20140266415A1

公开(公告)日：2014-09-18

申请号：US14212831

申请日：2014-03-14

Applicant: RF Micro Devices, Inc.

Inventor： Daniel Charles Kerr ,  Eric K. Bolton ,  Robert Andrew Phelps

IPC: H03H11/04

CPC classification number: H03H11/1213 ,  H01P1/15 ,  H03K17/102 ,  H03K17/687 ,  H03K17/693

Abstract: Disclosed is a harmonic cancellation circuit for an RF switch branch having a first transistor with a first gate terminal and a first body terminal, a second transistor having a second gate terminal coupled to the first body terminal, and having a second body terminal coupled to the first gate terminal. Also included is a first resistor coupled between a first coupling node and the second body terminal, and a second resistor coupled between a second coupling node and the first body terminal, wherein the first transistor and second transistor are adapted to generate an inverse phase third harmonic signal relative to a third harmonic signal generated by the RF switch branch, such that the inverse phase third harmonic signal is output through the first resistor and the second resistor to the RF switch branch to reduce the third harmonic signal.

Abstract translation: 公开了一种用于RF开关分支的谐波消除电路，具有具有第一栅极端子和第一主体端子的第一晶体管，第二晶体管具有耦合到第一主体端子的第二栅极端子，并且具有耦合到第一主体端子的第二主体端子 第一门终端。 还包括耦合在第一耦合节点和第二主体端子之间的第一电阻器和耦合在第二耦合节点和第一主体端子之间的第二电阻器，其中第一晶体管和第二晶体管适于产生反相三次谐波 信号相对于由RF开关分支产生的三次谐波信号，使得反相三次谐波信号通过第一电阻器和第二电阻器输出到RF开关分支以减少三次谐波信号。

公开(公告)号：US08831544B2

公开(公告)日：2014-09-09

申请号：US13288273

申请日：2011-11-03

Applicant: Gregg A. Walker ,  David E. Jones ,  Chris Levesque ,  William David Southcombe ,  Scott Yoder ,  Terry J. Stockert

Inventor： Gregg A. Walker ,  David E. Jones ,  Chris Levesque ,  William David Southcombe ,  Scott Yoder ,  Terry J. Stockert

IPC: H01Q11/12 ,  H04B1/04

CPC classification number: H03F3/19 ,  H03F1/0261 ,  H03F3/245 ,  H03F3/68 ,  H03F2200/111 ,  H03F2200/18 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2200/537 ,  H04B2001/0416

Abstract: An in-phase radio frequency (RF) power amplifier (PA) stage and a quadrature-phase RF PA stage are disclosed. The in-phase RF PA stage includes a first group of arrays of amplifying transistor elements and the quadrature-phase RF PA stage includes a second group of arrays of amplifying transistor elements. A group of array bias signals is based on a selected one of a group of DDS operating modes. Each of the group of array bias signals is a current signal. The in-phase RF PA stage biases at least one of the first group of arrays of amplifying transistor elements based on the group of array bias signals. Similarly, the quadrature-phase RF PA stage biases at least one of the second group of arrays of amplifying transistor elements based on the group of array bias signals.

Abstract translation: 公开了一种同相射频（RF）功率放大器（PA）级和正交RF PA级。 同相RF PA级包括放大晶体管元件的第一组阵列，并且正交RF PA级包括放大晶体管元件的第二组阵列。 一组阵列偏置信号基于一组DDS操作模式中的所选择的一个。 阵列偏置信号组中的每一个是电流信号。 同相RF PA级基于阵列偏置信号组偏置放大晶体管元件的第一组阵列中的至少一个。 类似地，正交相位RF PA级基于阵列偏置信号组偏置放大晶体管元件的第二组阵列中的至少一个。

公开(公告)号：US08823455B2

公开(公告)日：2014-09-02

申请号：US13605134

申请日：2012-09-06

Applicant: Kevin W. Kobayashi

Inventor： Kevin W. Kobayashi

IPC: H03F3/60

CPC classification number: H03F3/189 ,  H03F3/245 ,  H03F3/605

Abstract: Disclosed is a matrix distributed amplifier (DA) having an input transmission line, an intermediate transmission line, and an output transmission line. A first plurality of amplifiers has inputs coupled to and spaced along the input transmission line and has outputs coupled to and spaced along the intermediate transmission line. A second plurality of amplifiers has inputs coupled to and spaced along the intermediate transmission line and has outputs coupled to and spaced along the output transmission line. A termination amplifier has an input coupled to the input transmission line and an output coupled to the intermediate transmission line. In at least one embodiment, a second termination amplifier has an input coupled to the intermediate transmission line and an output coupled to the output transmission line.

Abstract translation: 公开了具有输入传输线，中间传输线和输出传输线的矩阵分布式放大器（DA）。 第一组多个放大器具有耦合到输入传输线并沿着输入传输线间隔开的输入，并且具有耦合到中间传输线并与之隔开的输出。 第二组多个放大器具有耦合到中间传输线并沿着中间传输线间隔的输入，并且具有耦合到输出传输线并沿输出传输线间隔开的输出。 终端放大器具有耦合到输入传输线的输入和耦合到中间传输线的输出。 在至少一个实施例中，第二终端放大器具有耦合到中间传输线的输入和耦合到输出传输线的输出。

公开(公告)号：US08792840B2

公开(公告)日：2014-07-29

申请号：US13550049

申请日：2012-07-16

Applicant: Nadim Khlat ,  Michael R. Kay

Inventor： Nadim Khlat ,  Michael R. Kay

IPC: H04B1/04 ,  H03F1/02 ,  H03F1/30

CPC classification number: H04B1/0475 ,  H03F1/0227 ,  H03F1/305

Abstract: Radio frequency (RF) transmitter circuitry, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple. Further, the envelope tracking power supply operates in either a normal switching ripple mode or a modified switching ripple mode, such that during the normal switching ripple mode, the envelope power supply signal has normal switching ripple, and during the modified switching ripple mode, the envelope power supply signal has modified switching ripple. When the modified switching ripple is required, the envelope tracking power supply operates in the modified switching ripple mode.

Abstract translation: 公开了包括RF功率放大器（PA）和包络跟踪电源的射频（RF）发射机电路。 RFPA接收并放大RF输入信号，以使用包络电源信号提供RF发射信号。 信封跟踪电源提供具有开关纹波的信封电源信号。 此外，包络跟踪电源以正常开关纹波模式或修改的开关纹波模式工作，使得在正常开关纹波模式期间，包络电源信号具有正常的开关纹波，并且在修改的开关纹波模式期间， 信号电源信号改变了开关纹波。 当需要修改的开关纹波时，包络跟踪电源以修改的开关纹波模式运行。

公开(公告)号：US08774065B2

公开(公告)日：2014-07-08

申请号：US13460861

申请日：2012-05-01

Applicant: Nadim Khlat ,  Alexander Wayne Hietala

Inventor： Nadim Khlat ,  Alexander Wayne Hietala

IPC: H04B7/00

CPC classification number: H04B1/0067 ,  H03F1/02 ,  H03F1/0227 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H03F2203/7209 ,  H03F2203/7221 ,  H04B2001/045 ,  H04L5/001

Abstract: A front end radio architecture (FERA) with power management is disclosed. The FERA includes a first power amplifier (PA) block having a first-first PA and a first-second PA, and a second PA block having a second-first PA and a second-second PA. First and second modulated switchers are adapted to selectively supply power to the first-first PA and the second-first PA, and to supply power to the first-second PA and the second-second PA, respectively. The first and second modulated switchers have a modulation bandwidth of at least 20 MHz and are both suitable for envelope tracking modulation. A control system is adapted to selectively enable and disable the first-first PA, first-second PA, the second-first PA, and the second-second PA. First and second switches are responsive to control signals to route carriers and received signals between first and second antennas depending upon a selectable mode of operation such as intra-band or inter-band operation.

Abstract translation: 公开了具有电源管理的前端无线电架构（FERA）。 FERA包括具有第一第一PA和第一秒PA的第一功率放大器（PA）块和具有第二第一PA和第二秒PA的第二PA块。 第一和第二调制切换器适于选择性地向第一优先PA和第二第一PA供电，并分别向第一秒PA和第二秒PA供电。 第一和第二调制切换器具有至少20MHz的调制带宽，并且都适用于包络跟踪调制。 控制系统适于选择性地启用和禁用第一优先PA，第一秒PA，第二优先PA和第二秒PA。 第一和第二开关响应于控制信号以根据诸如带内或频带间操作的可选择的操作模式在第一和第二天线之间路由载波和接收信号。

公开(公告)号：US20140152284A1

公开(公告)日：2014-06-05

申请号：US14096545

申请日：2013-12-04

Applicant: RF Micro Devices, Inc.

Inventor： Ashraf Rozek

IPC: H02M3/156

CPC classification number: H02M3/156

Abstract: A regulated switching converter having improved closed loop settling time is disclosed. An error amplifier having a voltage reference input, a feedback input, and an error output is included. An output filter having a voltage output terminal coupled to the feedback input provides an output voltage sample to the error amplifier. A compensation network coupled between the feedback input and the error output of the error amplifier includes at least one capacitor and at least one switch that is communicatively coupled across the at least one capacitor. A controller is adapted to monitor current flowing through the switching output terminal. The controller has at least one switch control output coupled to a control input of the at least one switch to allow the controller to momentarily close the at least one switch to substantially discharge the at least one capacitor when a predetermined high current state is reached.

Abstract translation: 公开了一种具有改进的闭环稳定时间的稳压开关转换器。 包括具有电压基准输入，反馈输入和误差输出的误差放大器。 具有耦合到反馈输入的电压输出端的输出滤波器向误差放大器提供输出电压采样。 耦合在误差放大器的反馈输入和误差输出之间的补偿网络包括至少一个电容器和至少一个通信地耦合在至少一个电容器上的开关。 控制器适于监测流过开关输出端的电流。 所述控制器具有耦合到所述至少一个开关的控制输入的至少一个开关控制输出，以允许所述控制器在达到预定的高电流状态时暂时关闭所述至少一个开关以基本上放电所述至少一个电容器。

公开(公告)号：US20140139199A1

公开(公告)日：2014-05-22

申请号：US14082629

申请日：2013-11-18

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Michael R. Kay

IPC: H02M3/158

CPC classification number: H02M3/1582 ,  H02M2001/0045 ,  H02M2001/007

Abstract: The present disclosure provides a modulated power supply system having a switching converter with an output terminal for supplying modulated power to a load. The modulated power supply system also includes a controller adapted to transition the switching converter between a buck mode and a boost mode in response to a detection of at least one predetermined condition associated with the output terminal.

Abstract translation: 本公开提供了一种具有开关转换器的调制电源系统，其具有用于向负载提供调制电力的输出端子。 调制电源系统还包括控制器，其适于响应于检测到与输出端子相关联的至少一个预定条件而在降压模式和升压模式之间转换开关转换器。

公开(公告)号：US08731498B2

公开(公告)日：2014-05-20

申请号：US13304735

申请日：2011-11-28

Applicant: William David Southcombe ,  Brian Baxter ,  David E. Jones ,  Chris Levesque ,  Scott Yoder ,  Terry J. Stockert

Inventor： William David Southcombe ,  Brian Baxter ,  David E. Jones ,  Chris Levesque ,  Scott Yoder ,  Terry J. Stockert

IPC: H01Q11/12 ,  H04B1/04

CPC classification number: H03F1/0227 ,  H03F1/0261 ,  H03F1/0277 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/602 ,  H03F3/72 ,  H03F2200/171 ,  H03F2200/222 ,  H03F2200/27 ,  H03F2200/318 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/414 ,  H03F2200/417 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21106 ,  H03F2203/21142 ,  H03F2203/21157

Abstract: A direct current (DC)-DC converter and radio frequency (RF) power amplifier (PA) circuitry are disclosed. The DC-DC converter provides an envelope power supply signal to the RF PA circuitry based on a first power supply output control signal. As a temperature of the RF PA circuitry changes, the envelope power supply signal may need to be adjusted to meet temperature compensation requirements of the RF PA circuitry. With adequate thermal coupling between the DC-DC converter and the RF PA circuitry, adjustments to the envelope power supply signal may be based on temperature measurements of the DC-DC converter. A desired correction of the first power supply output control signal is determined based on a measured temperature of the DC-DC converter and the temperature compensation requirements of the RF PA circuitry. The first power supply output control signal is adjusted based on the desired correction.

Abstract translation: 公开了直流（DC）-DC转换器和射频（RF）功率放大器（PA）电路。 DC-DC转换器基于第一电源输出控制信号向RF PA电路提供包络电源信号。 随着RF PA电路的温度变化，可能需要调整信封电源信号以满足RF PA电路的温度补偿要求。 在DC-DC转换器和RF PA电路之间具有足够的热耦合，对包络电源信号的调整可以基于DC-DC转换器的温度测量。 基于DC-DC转换器的测量温度和RF PA电路的温度补偿要求来确定第一电源输出控制信号的期望校正。 基于期望的校正来调整第一电源输出控制信号。

公开(公告)号：US08729963B2

公开(公告)日：2014-05-20

申请号：US13247085

申请日：2011-09-28

Applicant: Jeppe Korshøj Bendixen ,  Ruediger Bauder

Inventor： Jeppe Korshøj Bendixen ,  Ruediger Bauder

IPC: H03F1/00

CPC classification number: H03F3/24 ,  H03F3/195 ,  H03F3/211 ,  H03F3/68 ,  H03F2200/111 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541

Abstract: An asymmetrical transformer output demultiplexing (ATODEM) circuit is disclosed. The ATODEM circuit of the present disclosure includes N input windings, wherein N is a natural number. Each of the N input windings have input terminals that couple to output terminals of N PAs. The ATODEM further includes M output ports wherein M is a natural number, each of the M output ports having N series coupled windings coupled between a load terminal and a return terminal. The physical attributes of the N input windings, and the N series coupled windings of the M output ports are asymmetrical such that in an Nth operation mode an Nth PA first-load line impedance matches an output impedance of an Nth PA coupled to the input terminals.

Abstract translation: 公开了一种非对称变压器输出解复用（ATODEM）电路。 本公开的ATODEM电路包括N个输入绕组，其中N是自然数。 N个输入绕组中的每一个具有耦合到N个PA的输出端子的输入端子。 ATODEM还包括M个输出端口，其中M是自然数，M个输出端口中的每一个具有耦合在负载端子和返回端子之间的N个串联耦合绕组。 N个输入绕组的物理属性和M个输出端口的N个串联耦合绕组是不对称的，使得在第N个操作模式中，第N个PA第一负载线路阻抗匹配耦合到输入端子的第N个PA的输出阻抗 。