公开(公告)号：US20140376417A1

公开(公告)日：2014-12-25

申请号：US14302500

申请日：2014-06-12

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04B1/40 ,  H04L5/14 ,  H04B1/44

CPC classification number: H04B1/0064 ,  H04L5/001

Abstract: Front end circuitry includes at least three antenna nodes, a first duplexer, a second duplexer, a first diplexer, transceiver circuitry, and front end switching circuitry. The transceiver circuitry is coupled to the first duplexer, the second duplexer, and the first diplexer. The front end switching circuitry is coupled between the antenna nodes, the first duplexer, the second duplexer, and the first diplexer and configured to selectively couple the first duplexer to a first one of the antenna nodes, selectively couple the second duplexer to a second one of the antenna nodes, and selectively couple the first diplexer to a third one of the antenna nodes.

Abstract translation: 前端电路包括至少三个天线节点，第一双工器，第二双工器，第一双工器，收发器电路和前端开关电路。 收发器电路耦合到第一双工器，第二双工器和第一双工器。 前端切换电路耦合在天线节点，第一双工器，第二双工器和第一双工器之间，并且被配置为选择性地将第一双工器耦合到天线节点中的第一个，选择性地将第二双工器耦合到第二双工器 的天线节点，并且选择性地将第一双工器耦合到天线节点中的第三天线节点。

公开(公告)号：US20140307592A1

公开(公告)日：2014-10-16

申请号：US14254343

申请日：2014-04-16

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04L5/14 ,  H04L5/08 ,  H04B7/26

CPC classification number: H04L5/1461 ,  H04B1/006 ,  H04B1/0064 ,  H04B1/1027 ,  H04B2001/1072 ,  H04L5/08 ,  H04L5/14

Abstract: The disclosure includes communication circuitry with a tunable filter configured to tunably filter in a split band. In a first embodiment, communication circuitry includes a tunable filter and a first additional filter. The communication circuitry is configured to communicate within a low target band and within a high target band, wherein an exclusion band is located between the low target band and the high target band. The tunable filter is configured to filter within a low tunable band when tuned within the low tunable band, and configured to filter within a high tunable band when tuned within the high tunable band. The first additional filter is configured to filter in a first additional filter band located in an upper edge of the low target band.

Abstract translation: 本公开包括具有被配置为在分离频带中可调谐地滤波的可调谐滤波器的通信电路。 在第一实施例中，通信电路包括可调谐滤波器和第一附加滤波器。 通信电路被配置为在低目标频带内和高目标频带内通信，其中排除频带位于低目标频带和高目标频带之间。 可调谐滤波器被配置为在低可调谐带内调谐时在低可调谐频带内进行滤波，并且被配置为在高可调谐频带内调谐时在高可调谐频带内进行滤波。 第一附加滤波器被配置为在位于低目标频带的上边缘中的第一附加滤波器频带中进行滤波。

公开(公告)号：US20140106693A1

公开(公告)日：2014-04-17

申请号：US14052221

申请日：2013-10-11

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  H03F3/24 ,  H03F3/72 ,  H04B1/006 ,  H04B7/0413 ,  Y02D70/40 ,  Y02D70/444

Abstract: A communication device is disclosed that efficiently manages power. In one embodiment, this communication device includes a first (main) transmitter including a first low band amplifier and a first high band amplifier; a second (MIMO) transmitter including a second low band amplifier and a second high band amplifier; a first power manager in communication with the first low band amplifier and with the second high band amplifier; a second power manager in communication with the first high band amplifier and with the second low band amplifier; and a control system in communication with the first transmitter, the second transmitter, the first power manager, and the second power manager.

Abstract translation: 公开了一种有效管理电力的通信设备。 在一个实施例中，该通信设备包括：第一（主）发射机，包括第一低频带放大器和第一高频带放大器; 第二（MIMO）发射机，包括第二低频带放大器和第二高频带放大器; 与第一低频放大器和第二高频放大器通信的第一电源管理器; 与第一高频带放大器和第二低频带放大器通信的第二功率管理器; 以及与第一发射机，第二发射机，第一功率管理器和第二功率管理器通信的控制系统。

公开(公告)号：US20140099906A1

公开(公告)日：2014-04-10

申请号：US14048109

申请日：2013-10-08

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04B1/04 ,  H03F1/32

CPC classification number: H04B1/0475 ,  H03F1/0227 ,  H03F1/0266 ,  H03F1/3223 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/336 ,  H04B2001/0441

Abstract: A radio frequency (RF) power amplifier (PA) and an envelope tracking power supply are disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal, which at least partially envelope tracks the RF transmit signal, such that the RF input signal has an RF mixer-based artifact. The envelope tracking power supply provides the envelope power supply signal, which includes mixer-based artifact pre-distortion to at least partially remove effects of the RF mixer-based artifact from the RF transmit signal.

Abstract translation: 公开了射频（RF）功率放大器（PA）和包络跟踪电源。 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，该包络电源信号至少部分地包围跟踪RF发射信号，使得RF输入信号具有基于RF混频器的伪影。 信封跟踪电源提供包络电源信号，其包括基于混频器的伪像预失真，以至少部分地从RF发射信号中去除基于RF混频器的伪像的影响。

公开(公告)号：US20140055197A1

公开(公告)日：2014-02-27

申请号：US14072140

申请日：2013-11-05

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Michael R. Kay ,  Phillippe Gorisse ,  Christopher Truong Ngo

IPC: H03G3/30

CPC classification number: H03G3/3042 ,  H02M3/07 ,  H02M3/158 ,  H02M2001/0032 ,  H03F1/0227 ,  H03F3/24 ,  H03F3/45663 ,  Y02B70/16

Abstract: A power management system, which includes a parallel amplifier circuit and a switch mode power supply converter, is disclosed. The switch mode power supply converter cooperatively operates with the parallel amplifier circuit to form the power management system. The power management system operates in one of a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode. Further, during the high power modulation mode and the medium power modulation mode, the power management system controls a power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking. During the low power average power tracking mode, the power management system controls the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking.

Abstract translation: 公开了一种电源管理系统，其包括并联放大器电路和开关模式电源转换器。 开关模式电源转换器与并行放大器电路协同工作，形成电源管理系统。 电源管理系统以高功率调制模式，中等功率调制模式和低功率平均功率跟踪模式之一工作。 此外，在高功率调制模式和中等功率调制模式期间，电力管理系统控制向射频功率放大器的功率放大器电源电压以提供包络跟踪。 在低功率平均功率跟踪模式下，电源管理系统控制功率放大器对射频功率放大器的电源电压，以提供平均功率跟踪。

公开(公告)号：US20140016517A1

公开(公告)日：2014-01-16

申请号：US14029015

申请日：2013-09-17

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Ruediger Bauder ,  Andrew F. Folkmann

IPC: H04L5/14

CPC classification number: H04L5/14 ,  H04B1/0483

Abstract: The present disclosure relates to de-multiplexing at least one RF input signal feeding RF power amplifier circuitry to create multiple de-multiplexed RF output signals, which may be used to provide RF transmit signals in an RF communications system. Output transformer circuitry is coupled to outputs from the RF power amplifier circuitry to provide the de-multiplexed RF output signals, which may support multiple modes, multiple frequency bands, or both. The de-multiplexed RF output signals may be used in place of RF switching elements in certain embodiments. As a result, RF front-end switching circuitry in the RF communications system may be simplified, thereby reducing insertion losses, reducing costs, reducing size, or any combination thereof. Additionally, the output transformer circuitry may provide load line transformation, output transistor biasing, or both to the RF power amplifier circuitry.

Abstract translation: 本公开涉及对至少一个馈送RF功率放大器电路的RF输入信号进行解复用以创建多个解复用RF输出信号，其可用于在RF通信系统中提供RF发射信号。 输出变压器电路耦合到来自RF功率放大器电路的输出，以提供解复用的RF输出信号，其可以支持多种模式，多个频带或两者。 在某些实施例中，解复用的RF输出信号可以用于代替RF开关元件。 结果，可以简化RF通信系统中的RF前端切换电路，从而减少插入损耗，降低成本，减小尺寸或其任何组合。 此外，输出变压器电路可以向RF功率放大器电路提供负载线变换，输出晶体管偏置或两者。

公开(公告)号：US20140015731A1

公开(公告)日：2014-01-16

申请号：US13939941

申请日：2013-07-11

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Jonathan Hale Hammond

IPC: H01H1/00 ,  H01Q1/50 ,  H01H9/54

CPC classification number: H01H9/548 ,  H01H1/0036 ,  H01Q1/50 ,  H01Q21/0006 ,  H04B1/44 ,  Y10T307/747

Abstract: The disclosure is directed to optimized switching circuitry utilizing MEMS (Microelectromechanical Systems) circuitry in series with solid state circuitry. Specifically, the MEMS circuitry includes a first MEMS circuit in parallel with (and separate from) a second MEMS circuit. A paired signal is defined as a transmit signal and a receive signal (in a single band) that are transmitted or received on separate paths or on separate nodes. The transmit signal is associated with the first MEMS circuit, and the receive signal is associated with the second MEMS circuit. The solid state circuitry switches between the first MEMS circuit and second MEMS circuit without requiring any switching in the first or second MEMS circuits.

Abstract translation: 本公开涉及利用与固态电路串联的MEMS（微机电系统）电路的优化开关电路。 具体地，MEMS电路包括与第二MEMS电路并联（并且与第二MEMS电路分离）的第一MEMS电路。 配对信号被定义为在单独的路径上或在单独的节点上发送或接收的发送信号和接收信号（在单个频带中）。 发射信号与第一MEMS电路相关联，并且接收信号与第二MEMS电路相关联。 固态电路在第一MEMS电路和第二MEMS电路之间切换，而不需要在第一或第二MEMS电路中进行任何切换。

公开(公告)号：US20140009227A1

公开(公告)日：2014-01-09

申请号：US14022858

申请日：2013-09-10

Applicant: RF Micro Devices, Inc.

Inventor： Michael R. Kay ,  Nadim Khlat

IPC: H03F1/02

CPC classification number: H03F1/02 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

Abstract: A switch mode power supply converter, a parallel amplifier, and a parallel amplifier output impedance compensation circuit are disclosed. The switch mode power supply converter provides a switching voltage and generates an estimated switching voltage output, which is indicative of the switching voltage. The parallel amplifier generates a power amplifier supply voltage at a power amplifier supply output based on a compensated VRAMP signal. The parallel amplifier output impedance compensation circuit provides the compensated VRAMP signal based on a combination of a VRAMP signal and a high frequency ripple compensation signal. The high frequency ripple compensation signal is based on a difference between the VRAMP signal and the estimated switching voltage output.

Abstract translation: 公开了开关模式电源转换器，并联放大器和并联放大器输出阻抗补偿电路。 开关模式电源转换器提供开关电压并产生表示开关电压的估计开关电压输出。 并联放大器基于经补偿的VRAMP信号在功率放大器电源输出端产生功率放大器电源电压。 并联放大器输出阻抗补偿电路根据VRAMP信号和高频纹波补偿信号的组合提供经补偿的VRAMP信号。 高频纹波补偿信号基于VRAMP信号与估计的开关电压输出之间的差值。

公开(公告)号：US20130337754A1

公开(公告)日：2013-12-19

申请号：US13953808

申请日：2013-07-30

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04B1/44

CPC classification number: H04B1/44 ,  B81B7/02 ,  H01P1/15

Abstract: This disclosure relates generally to radio frequency (RF) front-end circuitry for different types of carrier aggregation, along with methods of operating the same. In one embodiment, the RF front-end circuitry includes a first diplexer, a second diplexer, first antenna selection circuitry, and second antenna selection circuitry. In order to maintain adequate isolation between high bands and low bands but provide carrier aggregation, the first antenna selection circuitry is configured to selectively couple each of a first plurality of RF ports to any one of a first low band port in the first diplexer and a second low band port in the second diplexer, while the second antenna selection circuitry is configured to selectively couple each of the second plurality of RF ports to any one of a first high band port in the first diplexer and a second high band port in the second diplexer.

Abstract translation: 本公开一般涉及用于不同类型的载波聚合的射频（RF）前端电路，以及其操作方法。 在一个实施例中，RF前端电路包括第一双工器，第二双工器，第一天线选择电路和第二天线选择电路。 为了在高频带和低频带之间保持足够的隔离，但提供载波聚合，第一天线选择电路被配置为选择性地将第一多个RF端口中的每一个耦合到第一双工器中的第一低频带端口中的任一个，以及 第二双工器中的第二低频带端口，而第二天线选择电路被配置为选择性地将第二多个RF端口中的每一个耦合到第一双工器中的第一高频带端口和第二双频带端口中的第二高频带端口 双工器。

公开(公告)号：US20130201882A1

公开(公告)日：2013-08-08

申请号：US13760240

申请日：2013-02-06

Applicant: RF MICRO DEVICES, INC.

Inventor： Ruediger Bauder ,  Marcus Granger-Jones ,  Nadim Khlat

IPC: H04L25/03 ,  H03H7/48

CPC classification number: H04L5/14 ,  H03H7/48 ,  H04B1/44 ,  H04B1/525 ,  H04L25/03878

Abstract: This disclosure includes embodiments of a tunable hybrid coupler. The tunable hybrid coupler includes a first inductive element having a first inductance, a second inductive element having a second inductance and mutually coupled to the first inductive element, a first variable capacitive element having a first variable capacitance, and a second variable capacitance having a second variable capacitance. The first variable capacitive element is coupled between a first port and a second port. The second variable capacitive element is coupled between a third port and a fourth port. The first inductive element is coupled from the first port to the third port, while the second inductive element is coupled from the second port to the fourth port. Accordingly, the tunable hybrid coupler may form an impedance matching network that is tunable to different RF communication bands. The tunable hybrid coupler may thus be included in a tunable RF duplexer.

Abstract translation: 本公开包括可调混合耦合器的实施例。 可调混合耦合器包括具有第一电感的第一电感元件，具有第二电感并且相互耦合到第一电感元件的第二电感元件，具有第一可变电容的第一可变电容元件和具有第二可变电容的第二可变电容 可变电容。 第一可变电容元件耦合在第一端口和第二端口之间。 第二可变电容元件耦合在第三端口和第四端口之间。 第一电感元件从第一端口耦合到第三端口，而第二电感元件从第二端口耦合到第四端口。 因此，可调混合耦合器可以形成可调谐到不同RF通信频带的阻抗匹配网络。 因此，可调混合耦合器可以包括在可调谐RF双工器中。