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：US08947161B2

公开(公告)日：2015-02-03

申请号：US13692084

申请日：2012-12-03

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Philippe Gorisse

IPC: H03G3/20 ,  H03F1/02 ,  H03F3/24

CPC classification number: H03F1/0211 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/459 ,  H03F2200/511

Abstract: Circuitry, which includes a linear amplifier and a linear amplifier power supply, is disclosed. The linear amplifier at least partially provides an envelope power supply signal to a radio frequency (RF) power amplifier (PA) using a selected one of a group of linear amplifier supply voltages. The linear amplifier power supply provides at least one of the group of linear amplifier supply voltages. Selection of the selected one of the group of linear amplifier supply voltages is based on a desired voltage of the envelope power supply signal.

Abstract translation: 公开了包括线性放大器和线性放大器电源的电路。 线性放大器至少部分地使用一组线性放大器电源电压中的所选择的一个向射频（RF）功率放大器（PA）提供包络电源信号。 线性放大器电源提供至少一组线性放大器电源电压。 所选择的一组线性放大器电源电压的选择是基于包络电源信号的期望电压。

公开(公告)号：US20140342678A1

公开(公告)日：2014-11-20

申请号：US14282393

申请日：2014-05-20

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat

IPC: H04B1/44

CPC classification number: H04B1/44 ,  H04B1/0064 ,  H04L5/001

Abstract: Front end circuitry for a mobile terminal includes separate receive paths and filtering elements for different portions of each operating band. Accordingly, the filtering elements for each receive path can be designed with a smaller pass-band, thereby reducing the complexity of filtering circuitry in the front end circuitry and improving the efficiency thereof.

Abstract translation: 用于移动终端的前端电路包括用于每个工作频带的不同部分的单独的接收路径和滤波元件。 因此，用于每个接收路径的滤波元件可以设计成具有较小的通带，从而降低前端电路中的滤波电路的复杂性并提高其效率。

公开(公告)号：US20140328220A1

公开(公告)日：2014-11-06

申请号：US14267095

申请日：2014-05-01

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Marcus Granger-Jones

IPC: H04L5/14 ,  H04L5/08 ,  H04B1/52

CPC classification number: H04B1/0064 ,  H04L5/001 ,  H04L5/0041

Abstract: Front end circuitry for a wireless communication system includes a first antenna node, a second antenna node, a first triplexer, a second triplexer, and front end switching circuitry coupled between the first triplexer, the second triplexer, the first antenna node, and the second antenna node. The front end switching circuitry is configured to selectively couple the first triplexer to one of the first antenna node and the second antenna node and couple the second triplexer to a different one of the first antenna node and the second antenna node. By using a first triplexer and a second triplexer in the mobile front end circuitry, the mobile front end circuitry may operate in one or more carrier aggregation configurations while reducing the maximum load presented to the first antenna node and the second antenna node, thereby improving the performance of the front end circuitry.

Abstract translation: 用于无线通信系统的前端电路包括耦合在第一三工器，第二三工器，第一天线节点和第二天线节点之间的第一天线节点，第二天线节点，第一三工器，第二三工器和前端开关电路 天线节点。 前端开关电路被配置为选择性地将第一三工器耦合到第一天线节点和第二天线节点之一，并将第二三工器耦合到第一天线节点和第二天线节点中的不同的天线节点。 通过在移动前端电路中使用第一三工器和第二三工器，移动前端电路可以在一个或多个载波聚合配置中操作，同时减少呈现给第一天线节点和第二天线节点的最大负载，从而改善 前端电路的性能。

公开(公告)号：US08878606B2

公开(公告)日：2014-11-04

申请号：US13661552

申请日：2012-10-26

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Michael R. Kay ,  Philippe Gorisse

IPC: H03G3/20 ,  H02M3/156 ,  H02M1/15 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M1/15 ,  H02M2001/0045 ,  H02M2001/0048 ,  H03F1/0216 ,  H03F3/2171 ,  Y02B70/1491

Abstract: A direct current (DC)-DC converter, which includes a parallel amplifier and a switching supply, is disclosed. The switching supply includes switching circuitry, a first inductive element, and a second inductive element. The parallel amplifier has a feedback input and a parallel amplifier output. The switching circuitry has a switching circuitry output. The first inductive element is coupled between the switching circuitry output and the feedback input. The second inductive element is coupled between the feedback input and the parallel amplifier output.

Abstract translation: 公开了一种包括并联放大器和开关电源的直流（DC）-DC转换器。 开关电源包括开关电路，第一电感元件和第二电感元件。 并联放大器具有反馈输入和并行放大器输出。 开关电路具有开关电路输出。 第一电感元件耦合在开关电路输出和反馈输入之间。 第二电感元件耦合在反馈输入端和并行放大器输出端之间。

公开(公告)号：US20140266428A1

公开(公告)日：2014-09-18

申请号：US14212199

申请日：2014-03-14

Applicant: RF Micro Devices, Inc.

Inventor： Jean-Frederic Chiron ,  Nadim Khlat

IPC: H03F1/02 ,  H03F3/20 ,  H03F3/189

CPC classification number: H03F1/02 ,  H03F1/0222 ,  H03F3/189 ,  H03F3/20

Abstract: A radio frequency (RF) system includes an RF power amplifier (PA), which uses an envelope tracking power supply voltage to provide an RF transmit signal, which has an RF envelope; and further includes an envelope tracking power supply, which provides the envelope tracking power supply voltage based on a setpoint. RF transceiver circuitry, which includes envelope control circuitry and an RF modulator is disclosed. The envelope control circuitry provides the setpoint, such that the envelope tracking power supply voltage is clipped to form clipped regions and substantially tracks the RF envelope between the clipped regions, wherein a dynamic range of the envelope tracking power supply voltage is limited. The RF modulator provides an RF input signal to the RF PA, which receives and amplifies the RF input signal to provide the RF transmit signal.

Abstract translation: 射频（RF）系统包括RF功率放大器（PA），其使用包络跟踪电源电压来提供具有RF包络的RF发射信号; 并且还包括一个包络跟踪电源，它根据设定点提供包络跟踪电源电压。 公开了包括封装控制电路和RF调制器的RF收发器电路。 包络控制电路提供设定点，使得包络跟踪电源电压被限幅以形成限幅区域，并且基本上跟踪限幅区域之间的RF包络，其中包络跟踪电源电压的动态范围受到限制。 RF调制器向RF PA提供RF输入信号，RF PA接收并放大RF输入信号以提供RF发射信号。

公开(公告)号：US20140225674A1

公开(公告)日：2014-08-14

申请号：US14176611

申请日：2014-02-10

Applicant: RF Micro Devices, Inc.

Inventor： Andrew F. Folkmann ,  Nadim Khlat ,  Michael R. Kay

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

CPC classification number: H03F1/0222 ,  H03F1/0227 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: Circuitry, which includes a linear amplifier, is disclosed. The linear amplifier has a linear amplifier output and includes an input amplifier stage and an output amplifier stage. The output amplifier stage at least partially provides an envelope power supply voltage to a radio frequency (RF) power amplifier (PA) via an envelope power supply output using a selected one of a group of linear amplifier power supply signals. The group of linear amplifier power supply signals includes at least a first bi-directional power supply signal. The input amplifier stage selects the one of the group of linear amplifier power supply signals based on the envelope power supply voltage and a setpoint of the envelope power supply voltage.

Abstract translation: 公开了包括线性放大器的电路。 线性放大器具有线性放大器输出，并包括输入放大级和输出放大级。 输出放大器级至少部分地通过使用一组线性放大器电源信号中选定的一个的包络电源输出向射频（RF）功率放大器（PA）提供包络电源电压。 线性放大器电源信号组至少包括第一双向电源信号。 输入放大器级基于包络电源电压和包络电源电压的设定点来选择一组线性放大器电源信号。

公开(公告)号：US20140203869A1

公开(公告)日：2014-07-24

申请号：US14163256

申请日：2014-01-24

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Michael R. Kay ,  Manbir Singh Nag

IPC: H03F3/189

CPC classification number: H03F1/0227 ,  H02M2001/0045 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/375 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/471 ,  H03F2200/555

Abstract: A parallel amplifier and an offset capacitance voltage control loop are disclosed. The parallel amplifier has a parallel amplifier output, which is coupled to an envelope tracking power supply output via an offset capacitive element. The offset capacitive element has an offset capacitive voltage. The offset capacitance voltage control loop regulates the offset capacitive voltage, which is adjustable on a communications slot-to-communications slot basis.

Abstract translation: 公开了并联放大器和偏移电容电压控制回路。 并联放大器具有并联放大器输出，其通过偏移电容元件耦合到包络跟踪电源输出。 偏移电容元件具有偏移电容电压。 偏移电容电压控制回路调节偏移电容电压，其可以在通信插槽到通信插槽的基础上进行调整。

公开(公告)号：US20140169243A1

公开(公告)日：2014-06-19

申请号：US14133024

申请日：2013-12-18

Applicant: RF MICRO DEVICES, INC.

Inventor： Nadim Khlat ,  Marcus Granger-Jones

IPC: H04L5/08

CPC classification number: H04B7/0602 ,  H04B7/0802 ,  H04L5/001

Abstract: Communication circuitry is disclosed that is capable of switching between three or more antennas while providing low harmonic interference during carrier aggregation. In one embodiment, a communication system includes a first switch with two poles and four throws, a second switch with two poles and four throws, and four diplexers associated with four antennas. In a second embodiment, the communication system includes a first switch with three poles and three throws, a second switch with three poles and three throws, and three diplexers associated with three antennas. In the second embodiment, the second switch may have a third pole associated with non-cellular signals such as GPS and WiFi, and one or more of the diplexers may be tunable, for example to efficiently pass 1.575 GHz for GPS signals.

Abstract translation: 公开了能够在载波聚合期间提供低谐波干扰的三个或更多个天线之间切换的通信电路。 在一个实施例中，通信系统包括具有两极和四掷的第一开关，具有两极和四掷的第二开关以及与四个天线相关联的四个双工器。 在第二实施例中，通信系统包括具有三极和三掷的第一开关，具有三极和三掷的第二开关，以及与三个天线相关联的三个双工器。 在第二实施例中，第二开关可以具有与诸如GPS和WiFi之类的非蜂窝信号相关联的第三极，并且一个或多个双工器可以是可调谐的，例如可有效地通过1.575GHz的GPS信号。