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公开(公告)号：US09178472B2
公开(公告)日：2015-11-03
申请号：US14176611
申请日：2014-02-10
Applicant: RF Micro Devices, Inc.
Inventor： Andrew F. Folkmann , Nadim Khlat , Michael R. Kay
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。
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公开(公告)号：US09172441B2
公开(公告)日：2015-10-27
申请号：US13929987
申请日：2013-06-28
Applicant: RF Micro Devices, Inc.
Inventor： Marcus Granger-Jones , Nadim Khlat
CPC classification number: H04B7/0404 , H01Q1/242 , H01Q21/28 , H04B1/006 , H04B1/0064 , H04B1/3816 , H04B7/0691
Abstract: Radio frequency (RF) front end circuitry includes one or more antenna ports, one or more RF switching ports, and an RF switch matrix coupled between the antenna ports and the RF front end ports. The RF switch matrix comprises a dual 4×4 multiplexer, and is adapted to selectively couple any one of the antennas to any one of the plurality of RF switching ports.
Abstract translation: 射频（RF）前端电路包括一个或多个天线端口，一个或多个RF交换端口以及耦合在天线端口与RF前端端口之间的RF开关矩阵。 RF开关矩阵包括双重4×4多路复用器，并且适于将任何一个天线选择性地耦合到多个RF交换端口中的任何一个。
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33.发明授权公开(公告)号：US09143208B2
公开(公告)日：2015-09-22
申请号：US13942778
申请日：2013-07-16
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H04B7/0404 , H04B1/006 , H04B7/0602 , H04B7/0802
Abstract: A radio front end that includes a diversity switch module adapted to route diversity receive (RX) signals to transceiver circuitry from diversity antenna switch circuitry coupled to at least one diversity antenna port is disclosed. The radio front end further includes ultrahigh band (UHB) switch circuitry adapted to route UHB transmit (TX) signals from power amplifier and switch circuitry to a UHB antenna port and/or to at least one diversity antenna port. The UHB switch circuitry is also adapted to route UHB RX signals from the UHB antenna port and/or to at least one antenna port to the transceiver circuitry, wherein the UHB RX signals include band 7 (B7) wherein linearity of the UHB switch circuitry is greater than linearity of the diversity switch module.
Abstract translation: 公开了一种无线电前端，其包括适于将分集接收（RX）信号从耦合到至少一个分集天线端口的分集天线切换电路的收发器电路路由到分集交换模块。 无线电前端还包括适于将UHB发射（TX）信号从功率放大器和开关电路路由到UHB天线端口和/或至少一个分集天线端口的超高频（UHB）开关电路。 UHB开关电路还适于将UHB RX信号从UHB天线端口和/或至少一个天线端口路由到收发器电路，其中UHB RX信号包括带7（B7），其中UHB开关电路的线性度为 大于分集开关模块的线性度。
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公开(公告)号：US20150263405A1
公开(公告)日：2015-09-17
申请号：US14673192
申请日：2015-03-30
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Marcus Granger-Jones
CPC classification number: H03H7/46 , H01P5/22 , H01P5/227 , H03H7/0138 , H03H7/463 , H03H9/706 , H03H9/725 , H04B1/525 , H04B1/58
Abstract: RF circuitry, which includes a first hybrid RF coupler, a second hybrid RF coupler, a third hybrid RF coupler, and RF filter circuitry, is disclosed. The first hybrid RF coupler provides a first main port, a first pair of quadrature ports, and an isolation port. The second hybrid RF coupler provides a second main port and a second pair of quadrature ports. The third hybrid RF coupler provides a third main port and a third pair of quadrature ports. RF filter circuitry is coupled to the first pair of quadrature ports, the second pair of quadrature ports, and the third pair of quadrature ports. The first main port, the second main port, and the third main port provide main ports of the RF triplexer. The isolation port is a common port of the RF triplexer for coupling to an RF antenna.
Abstract translation: 公开了RF电路，其包括第一混合RF耦合器，第二混合RF耦合器，第三混合RF耦合器和RF滤波器电路。 第一混合RF耦合器提供第一主端口，第一对正交端口和隔离端口。 第二混合RF耦合器提供第二主端口和第二对正交端口。 第三混合RF耦合器提供第三主端口和第三对正交端口。 RF滤波器电路耦合到第一对正交端口，第二对正交端口和第三对正交端口。 第一主端口，第二主端口和第三主端口提供RF三工器的主端口。 隔离端口是用于耦合到RF天线的RF三工器的公共端口。
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公开(公告)号：US20150234402A1
公开(公告)日：2015-08-20
申请号：US14702192
申请日：2015-05-01
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Nadim Khlat
IPC: G05F1/46
CPC classification number: G05F1/468 , H02M1/10 , H02M2001/0067 , H03F1/0211 , H03F1/0227 , H03F1/26 , H03F3/24 , H03F2200/351 , H03F2200/451 , H03F2200/504 , H04B15/005
Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.
Abstract translation: 本公开涉及射频（RF）功率转换器及其操作方法。 在一个实施例中，RF功率转换器包括RF开关转换器，低压降（LDO）调节电路和RF滤波器。 RF滤波器被耦合以接收来自RF开关转换器的脉冲输出电压和来自LDO调节电路的电源电压。 RF滤波器可操作以在第一RF滤波器拓扑和第二RF滤波器拓扑之间交替。 在第一RF滤波器拓扑中，RF滤波器被配置为将来自开关电路的脉冲输出电压转换成电源电压。 第二RF滤波器拓扑中的RF滤波器被配置为对来自LDO调节电路的电源电压进行滤波，以减少电源电压的电源电压电平中的纹波变化。 因此，RF滤波器提供更大的通用性。
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Patent Agency Ranking
36.发明授权公开(公告)号：US09078211B2
公开(公告)日：2015-07-07
申请号：US14052221
申请日：2013-10-11
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
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。
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公开(公告)号：US09071210B2
公开(公告)日：2015-06-30
申请号：US14056135
申请日：2013-10-17
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Alexander Wayne Hietala
CPC classification number: H03F1/56 , H03F3/20 , H03F3/24 , H03F3/68 , H03F2200/387 , H03F2200/537 , H03F2200/541
Abstract: An efficient power transfer power amplifier (PA) architecture is disclosed that includes a first PA, a first impedance transformation network (ITN) coupled to the first PA, a second PA, and a second ITN coupled to the second PA. A switching network having a plurality of load outputs along with a first switch input coupled to a first impedance output of the first ITN and a second switch input coupled to a second impedance output of the first ITN, a third switch input coupled to a third impedance output of the second ITN, and a fourth switch input coupled to a fourth impedance output of the second ITN. A control system is adapted to control the switching network to switch signals at the first, second, third, and fourth switch inputs such that select ones of the signals travel paths having matching impedances to loads coupled to the plurality of load outputs.
Abstract translation: 公开了一种有效的功率传输功率放大器（PA）架构，其包括第一PA，耦合到第一PA的第一阻抗变换网络（ITN），第二PA和耦合到第二PA的第二ITN。 一种具有多个负载输出以及耦合到第一ITN的第一阻抗输出的第一开关输入和耦合到第一ITN的第二阻抗输出的第二开关输入的开关网络，耦合到第三阻抗的第三开关输入 第二ITN的输出和耦合到第二ITN的第四阻抗输出的第四开关输入。 控制系统适于控制开关网络以在第一，第二，第三和第四开关输入端切换信号，使得信号中的选择信号将具有匹配阻抗的路径传递到耦合到多个负载输出的负载。
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公开(公告)号：US08975959B2
公开(公告)日：2015-03-10
申请号：US13684826
申请日：2012-11-26
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H03G1/04 , H03F1/0227 , H03F1/3247
Abstract: Circuitry, which includes data memory and processing circuitry, is disclosed. The data memory is used to store look-up table (LUT)-based radio frequency (RF) power amplifier (PA) calibration data. The processing circuitry converts at least a portion of the LUT-based RF PA calibration data to provide monotonic response curve-based data. As such, a magnitude of an envelope power supply control signal is determined based on a magnitude of an RF input signal using the monotonic response curve-based data.
Abstract translation: 公开了包括数据存储器和处理电路的电路。 数据存储器用于存储基于查找表（LUT）的射频（RF）功率放大器（PA）校准数据。 处理电路将基于LUT的RF PA校准数据的至少一部分转换为提供基于单调响应曲线的数据。 因此，使用基于单调响应曲线的数据，基于RF输入信号的大小来确定包络电源控制信号的幅度。
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公开(公告)号：US20150035617A1
公开(公告)日：2015-02-05
申请号：US14449913
申请日：2014-08-01
Applicant: RF Micro Devices, Inc.
Inventor： Dirk Robert Walter Leipold , George Maxim , Baker Scott , Nadim Khlat , Jayanti Jaganatha Rao
IPC: H03H7/46
CPC classification number: H03H7/465 , H03F1/565 , H03F3/193 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/267 , H03F2200/391 , H03F2200/451 , H03F2203/7209 , H03H7/0115 , H03H7/09 , H03H7/1775 , H03H2210/012 , H03H2210/025 , H03H2210/04
Abstract: RF communications circuitry, which includes a first tunable RF filter and a second tunable RF filter, is disclosed. The first tunable RF filter is coupled to the second tunable RF filter. The RF communications circuitry operates in one of a first operating mode and a second operating mode. During the first operating mode, the second tunable RF filter receives and filters an upstream RF signal to provide a filtered RF signal. Further, during the first operating mode, the first tunable RF filter augments a frequency response of the second tunable RF filter.
Abstract translation: 公开了包括第一可调谐RF滤波器和第二可调谐RF滤波器的RF通信电路。 第一可调谐RF滤波器耦合到第二可调谐RF滤波器。 RF通信电路以第一操作模式和第二操作模式中的一种操作。 在第一操作模式期间，第二可调谐RF滤波器接收并过滤上行RF信号以提供经滤波的RF信号。 此外，在第一操作模式期间，第一可调谐RF滤波器增加了第二可调谐RF滤波器的频率响应。
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公开(公告)号：US20150016313A1
公开(公告)日：2015-01-15
申请号：US14329493
申请日：2014-07-11
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Jayanti Jaganatha Rao
CPC classification number: H04B1/525 , H03H7/0153 , H03H7/463 , H04L5/14 , H04L5/1415 , H04L5/1469 , H04L5/16
Abstract: RF duplexing and methods of operating the same are described herein. In one embodiment, an RF duplexing system may include a control circuit and a duplexer with a first tunable RF filter and second tunable RF filter. The control circuit is operable in a full duplexing transmission mode and a half duplexing transmission mode. The control circuit tunes the first tunable RF filter in the full duplexing transmission mode so that the first tunable RF filter defines a transmission passband and tune the second tunable RF filter so that the second tunable RF filter defines a receive passband. Also, the control circuit tunes one of the tunable RF filters so that the tunable RF filter defines the passband while the other tunable RF filter enhances the passband. In this manner, the tunable RF filters in the duplexer are both utilized to get better performance during the half duplexing mode.
Abstract translation: RF双工及其操作方法在此描述。 在一个实施例中，RF双工系统可以包括具有第一可调谐RF滤波器和第二可调谐RF滤波器的控制电路和双工器。 控制电路可在全双工传输模式和半双工传输模式下工作。 控制电路以全双工传输模式调谐第一可调谐RF滤波器，使得第一可调谐RF滤波器定义传输通带并调谐第二可调谐RF滤波器，使得第二可调谐RF滤波器限定接收通带。 此外，控制电路调谐一个可调谐RF滤波器，使得可调谐RF滤波器限定通带，而另一个可调谐RF滤波器增强通带。 以这种方式，双工器中的可调谐RF滤波器都用于在半双工模式期间获得更好的性能。
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