公开(公告)号：US20160142198A1

公开(公告)日：2016-05-19

申请号：US15006877

申请日：2016-01-26

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat

IPC分类号： H04L5/14

CPC分类号： H04B1/44 ,  H04B1/525 ,  H04L5/1461

摘要： Radio frequency (RF) duplexing devices and methods of operating the same are disclosed. In one embodiment, an RF duplexing device includes a transmission port, a receive port, a first duplexer, and a second duplexer. The first duplexer is coupled to the transmission port and the receive port, and is configured to provide a first phase shift from the transmission port to the receive port. The second duplexer is also coupled to the transmission port and the receive port. However, the second duplexer is configured to provide a second phase shift that is differential to the first phase shift from the transmission port to the receive port. By providing the second phase shift so that the second phase shift is differential to the first phase shift, the RF duplexing device can provide isolation through cancellation without needing to introduce significant insertion losses.

公开(公告)号：US20160119003A1

公开(公告)日：2016-04-28

申请号：US14611850

申请日：2015-02-02

申请人： RF Micro Devices, Inc.

发明人： Marcus Granger-Jones ,  Nadim Khlat

IPC分类号： H04B1/00 ,  H04L5/14

CPC分类号： H04B1/0057 ,  H04B1/006 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/14

摘要： RF front end circuitry includes mid/high-band switching circuitry and a carrier-aggregation diplexer. The mid/high-band switching circuitry is configured to receive and selectively route mid-band and high-band signals between a mid/high-band output port and a number of mid/high-band transceiver ports. The carrier-aggregation diplexer is coupled to a first one of the mid/high-band transceiver ports. Further, the carrier-aggregation diplexer is configured to pass mid-band signals between a mid-band diplexer port and the first one of the mid/high-band transceiver ports while attenuating other signals, and pass high-band signals between a high-band diplexer port and the first one of the mid/high-band transceiver ports while attenuating other signals.

摘要翻译： RF前端电路包括中/高带开关电路和载波聚合双工器。 中/高频带切换电路被配置为在中/高带输出端口和多个中/高带收发器端口之间接收和选择性地路由中频带和高频带信号。 载波聚合双工器耦合到中/高带收发器端口中的第一个。 此外，载波聚合双工器被配置为在中频双工器端口和中/高带收发器端口中的第一个之间通过中频带信号，同时衰减其他信号，并且在高频带收发器端口之间传递高频带信号， 频段双工器端口和第一个中/高带收发器端口，同时衰减其他信号。

公开(公告)号：US09270302B2

公开(公告)日：2016-02-23

申请号：US14302500

申请日：2014-06-12

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat

IPC分类号： H04L5/14 ,  H04L5/00 ,  H04W4/00 ,  H04L12/66 ,  H04B1/00

CPC分类号： H04B1/0064 ,  H04L5/001

摘要： 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.

摘要翻译： 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：US20160049965A1

公开(公告)日：2016-02-18

申请号：US14922803

申请日：2015-10-26

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat

IPC分类号： H04B1/00

CPC分类号： H04B1/0057 ,  H04B1/0064

摘要： A tunable RF transmit/receive (TX/RX) multiplexer, which includes a tunable RF TX/RX diplexing circuit and a first group of RF RX bandpass filters, is disclosed. The tunable RF TX/RX diplexing circuit has a first RX connection node and a first antenna port, which is coupled to a first RF antenna. Each of the first group of RF RX bandpass filters is coupled to the first RX connection node. At least two of the first group of RF RX bandpass filters simultaneously receive and filter respective RF input signals via the first RX connection node to provide respective filtered RF input signals.

摘要翻译： 公开了一种可调RF发射/接收（TX / RX）多路复用器，其包括可调谐RF TX / RX双工电路和第一组RF RX带通滤波器。 可调谐RF TX / RX双工电路具有第一RX连接节点和耦合到第一RF天线的第一天线端口。 第一组RF RX带通滤波器中的每一个耦合到第一RX连接节点。 第一组RF RX带通滤波器中的至少两个同时通过第一RX连接节点接收和滤除相应的RF输入信号，以提供相应的滤波的RF输入信号。

公开(公告)号：US20160020637A1

公开(公告)日：2016-01-21

申请号：US14792912

申请日：2015-07-07

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat

IPC分类号： H02J7/02 ,  H02J7/04

摘要： A wireless charging circuit is disclosed. In this regard, a wireless charging circuit is configured to charge a battery by harvesting radio frequency (RF) power from a wireless RF charging signal provided by a wireless charging station. The wireless charging circuit monitors an effective charging power provided to the battery and sends a battery charging signal indication (BCSI) to the wireless charging station to reduce the effective charging power if the effective charging power is greater than a target charging power. In another aspect, the wireless charging circuit sends the BCSI to increase the effective charging power if the effective charging power is less than the target charging power. By dynamically adjusting the effective charging power based on the charging profile of the battery, it is possible to provide fast charging to the battery while protecting the battery from overcharging damage.

摘要翻译： 公开了一种无线充电电路。 在这方面，无线充电电路被配置为通过从由无线充电站提供的无线RF充电信号获取射频（RF）功率来对电池充电。 无线充电电路监视提供给电池的有效充电电力，并向无线充电站发送电池充电信号指示（BCSI），以在有效充电功率大于目标充电功率时降低有效充电功率。 另一方面，如果有效充电功率小于目标充电功率，则无线充电电路发送BCSI以增加有效充电功率。 通过基于电池的充电曲线来动态地调整有效充电功率，可以对电池进行快速充电，同时保护电池免受过度充电损坏。

公开(公告)号：US09225231B2

公开(公告)日：2015-12-29

申请号：US14027416

申请日：2013-09-16

申请人： RF Micro Devices, Inc.

发明人： Philippe Gorisse ,  Nadim Khlat ,  Christopher Truong Ngo

IPC分类号： H02M1/14 ,  H02M1/15 ,  H03F1/02 ,  H02M1/00

CPC分类号： H02M1/14 ,  H02M1/15 ,  H02M2001/0045 ,  H03F1/0211 ,  H03F1/0261

摘要： A direct current (DC)-DC converter, which includes an open loop ripple cancellation circuit, a switching supply, and a parallel amplifier, is disclosed. During a calibration mode, the parallel amplifier provides a parallel amplifier output current to regulate a power supply output voltage based on a calibration setpoint. The switching supply drives the parallel amplifier output current toward zero using a switching control signal, such that during the calibration mode, an estimate of a current gain is based on the switching control signal. Further, during the calibration mode, the open loop ripple cancellation circuit is disabled. During a normal operation mode, the open loop ripple cancellation circuit provides a ripple cancellation current, which is based on the estimate of the current gain.

摘要翻译： 公开了一种直流（DC）-DC转换器，其包括开环纹波消除电路，开关电源和并联放大器。 在校准模式期间，并行放大器提供并行放大器输出电流，以调节基于校准设定值的电源输出电压。 开关电源使用开关控制信号将平行放大器输出电流驱动到零，使得在校准模式期间，电流增益的估计基于开关控制信号。 此外，在校准模式期间，开环纹波消除电路被禁用。 在正常工作模式下，开环纹波消除电路提供纹波消除电流，其基于当前增益的估计。

公开(公告)号：US09220067B2

公开(公告)日：2015-12-22

申请号：US14051601

申请日：2013-10-11

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat ,  Alexander Wayne Hietala

IPC分类号： H04B7/00 ,  H04W52/02 ,  H03F1/02 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H04B1/00 ,  H04L5/00 ,  H04B1/04

CPC分类号： H04W52/0251 ,  H03F1/02 ,  H03F1/0227 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H03F2203/7209 ,  H03F2203/7221 ,  H04B1/0067 ,  H04B2001/045 ,  H04L5/001

摘要： 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 for amplifying first-first signals and a first-second PA for amplifying first-second signals. Also included is a second PA block having a second-first PA for amplifying second-first signals and a second-second PA for amplifying second-second signals. At least one power supply is adapted to selectively supply power to the first-first PA and the second-second PA through a first path. The power supply is also adapted to selectively supply power to the first-second PA and the second-first PA through a second path. A control system is adapted to selectively enable and disable the first-first PA, the first-second PA, the second-first PA, and the second-second PA.

摘要翻译： 公开了具有电源管理的前端无线电架构（FERA）。 FERA包括具有用于放大第一信号的第一第一PA和用于放大第一秒信号的第一秒PA的第一功率放大器（PA）模块。 还包括具有用于放大第二第一信号的第二第一PA和用于放大第二秒信号的第二秒PA的第二PA块。 至少一个电源适于通过第一路径选择性地向第一首PA和第二秒PA供电。 电源还适于通过第二路径选择性地向第一和第二PA供电。 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。

公开(公告)号：US09219594B2

公开(公告)日：2015-12-22

申请号：US13852527

申请日：2013-03-28

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat ,  Marcus Granger-Jones

IPC分类号： H04L5/06 ,  H04L5/12

CPC分类号： H04L5/06 ,  H04B1/0057 ,  H04L5/001 ,  H04L5/12 ,  H04L27/0002

摘要： Radio frequency front end circuitry comprises a first antenna port, a second antenna port, antenna switching circuitry, a first diplexer, and a second diplexer. The antenna switching circuitry is coupled to each of the first antenna port and the second antenna port through the first diplexer and the second diplexer, respectively. The antenna switching circuitry is adapted to selectively couple one or more of a plurality of transmit and receive ports to the first antenna port and the second antenna port.

摘要翻译： 射频前端电路包括第一天线端口，第二天线端口，天线切换电路，第一双工器和第二双工器。 天线切换电路分别通过第一双工器和第二双工器耦合到第一天线端口和第二天线端口中的每一个。 天线切换电路适于选择性地将多个发射和接收端口中的一个或多个耦合到第一天线端口和第二天线端口。

公开(公告)号：US09207692B2

公开(公告)日：2015-12-08

申请号：US14056292

申请日：2013-10-17

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat ,  Michael R. Kay ,  Mohammad Ahsanul Adeeb

IPC分类号： H04B1/04 ,  G05F1/46 ,  H03F1/02 ,  H03F3/189 ,  H03F3/24

CPC分类号： G05F1/46 ,  H03F1/0211 ,  H03F1/0227 ,  H03F1/3223 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/432 ,  H04B2001/0441

摘要： An envelope tracking power supply and an offset capacitive element are disclosed. The offset capacitive element is coupled between a switching output and an analog output of the envelope tracking power supply, which operates in one of an envelope tracking mode, a transition mode, and an average power tracking mode. During the envelope tracking mode, the envelope tracking power supply provides an envelope power supply signal using both the switching output and the analog output. During the transition mode, the envelope tracking power supply drives a voltage across the offset capacitive element from a first voltage to a second voltage, such that during a transition from the envelope tracking mode to the transition mode, the offset capacitive element has the first voltage, and during a transition from the transition mode to the average power tracking mode, the offset capacitive element has the second voltage.

摘要翻译： 公开了一种包络跟踪电源和偏移电容元件。 偏移电容元件耦合在包络跟踪电源的开关输出和模拟输出之间，其以包络跟踪模式，转换模式和平均功率跟踪模式之一工作。 在包络跟踪模式期间，包络跟踪电源使用开关输出和模拟输出两者提供包络电源信号。 在转换模式期间，包络跟踪电源将偏移电容元件上的电压从第一电压驱动到第二电压，使得在从包络跟踪模式转换到转换模式期间，偏移电容元件具有第一电压 ，并且在从转换模式到平均功率跟踪模式的转变期间，偏移电容元件具有第二电压。

公开(公告)号：US09197256B2

公开(公告)日：2015-11-24

申请号：US14048109

申请日：2013-10-08

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat

IPC分类号： H04B1/04 ,  H03F1/32 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H03C1/62

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

摘要： 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.

摘要翻译： 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。