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公开(公告)号：US09196945B2
公开(公告)日：2015-11-24
申请号：US13904520
申请日：2013-05-29
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Marcus Granger-Jones , Ruediger Bauder
CPC classification number: H01P5/12 , H04B1/0057
Abstract: The disclosure describes a dual hybrid duplexer including two hybrid couplers, two intra-filters, a tunable isolation load, and a phase shifter. The phase shifter may be located at the isolation port. The phase shifter may be located at the antenna port. In one embodiment, a dual hybrid duplexer includes two hybrid couplers, two intra-filters, a tunable isolation load, a first phase shifter located at the isolation port, and a second phase shifter located at the antenna port. The first and second phase shifters have a difference of 90 degrees (plus or minus 10 degrees).
Abstract translation: 本公开描述了一种双混合双工器，其包括两个混合耦合器，两个内部滤波器，可调谐隔离负载和移相器。 移相器可以位于隔离端口处。 移相器可以位于天线端口处。 在一个实施例中，双混合双工器包括两个混合耦合器，两个内部滤波器，可调谐隔离负载，位于隔离端口的第一移相器和位于天线端口处的第二移相器。 第一和第二移相器具有90度（正负10度）的差。
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112.发明授权Output impedance compensation of a pseudo-envelope follower power management system 有权伪包络跟随器电源管理系统的输出阻抗补偿公开(公告)号：US09099961B2
公开(公告)日：2015-08-04
申请号：US14022858
申请日：2013-09-10
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Nadim Khlat
IPC: H03G3/00 , H03F3/04 , H03F1/02 , H02M3/07 , H03F1/42 , H03F3/195 , H03F3/24 , H03F3/30 , H03F3/45 , H03F3/50 , H03F3/72
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。
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公开(公告)号：US09048805B2
公开(公告)日：2015-06-02
申请号：US13633459
申请日：2012-10-02
Applicant: RF Micro Devices, Inc.
Inventor： Marcus Granger-Jones , Nadim Khlat
CPC classification number: H03H7/01 , H01P1/211 , H01P1/2138 , H01P5/19 , H03H7/1758 , H03H7/1766 , H03H7/1775 , H03H7/463 , H04B1/525
Abstract: A tunable radio frequency (RF) duplexer and duplexing methods are disclosed. The tunable RF duplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit. The first hybrid coupler is operable to split the RF transmission input signal into first and second RF quadrature hybrid transmission signals (QHTSs). The second hybrid coupler is operable to split the RF receive input signal into first and second RF quadrature hybrid receive signals (QHRSs). The RF filter circuit is operable to pass the first and second RF QHTSs to the second hybrid coupler and to reflect the first and second RF QHRSs back to the second hybrid coupler. Additionally, the second hybrid coupler is configured to combine the first and second RF QHTSs into an RF transmission output signal and to combine the first and second RF QHRSs into an RF receive output signal.
Abstract translation: 公开了可调谐射频（RF）双工器和双工方法。 可调RF双工器包括第一混合耦合器，第二混合耦合器和RF滤波器电路。 第一混合耦合器可操作以将RF传输输入信号分成第一和第二RF正交混合传输信号（QHTS）。 第二混合耦合器可操作以将RF接收输入信号分成第一和第二RF正交混合接收信号（QHRS）。 RF滤波器电路可操作以将第一和第二RF QHTS传递到第二混合耦合器并将第一和第二RF QHRS反射回第二混合耦合器。 此外，第二混合耦合器被配置为将第一和第二RF QHTS组合成RF传输输出信号并且将第一和第二RF QHRS组合成RF接收输出信号。
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公开(公告)号：US09042275B2
公开(公告)日：2015-05-26
申请号：US13760159
申请日：2013-02-06
Applicant: RF Micro Devices, Inc.
Inventor： Ruediger Bauder , Marcus Granger-Jones , Nadim Khlat
CPC classification number: H04L5/14 , H03H7/48 , H04B1/44 , H04B1/525 , H04L25/03878
Abstract: A tunable radio frequency (RF) duplexer is disclosed. The tunable RF duplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit. The first hybrid coupler is operable to split an RF receive input signal into first and second RF quadrature hybrid receive signals (QHRSs). The first hybrid coupler is also operable to split an RF transmission input signal into first and second RF quadrature hybrid transmission signals (QHTSs). The RF filter circuit is operable to pass the first and second RF QHRSs to the second hybrid coupler and to reflect the first and second RF QHTSs back to the first hybrid coupler. Additionally, the second hybrid coupler is configured to combine the first and second RF QHRSs into an RF receive output signal, while the first hybrid coupler is configured to combine the first and second RF QHTSs into an RF transmission output signal.
Abstract translation: 公开了一种可调谐射频（RF）双工器。 可调RF双工器包括第一混合耦合器，第二混合耦合器和RF滤波器电路。 第一混合耦合器可操作以将RF接收输入信号分成第一和第二RF正交混合接收信号（QHRS）。 第一混合耦合器还可操作以将RF传输输入信号分成第一和第二RF正交混合传输信号（QHTS）。 RF滤波器电路可操作以将第一和第二RF QHRS传递到第二混合耦合器并将第一和第二RF QHTS反射回第一混合耦合器。 此外，第二混合耦合器被配置为将第一和第二RF QHRS组合成RF接收输出信号，而第一混合耦合器被配置为将第一和第二RF QHTS组合成RF发射输出信号。
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公开(公告)号：US09041365B2
公开(公告)日：2015-05-26
申请号：US13747694
申请日：2013-01-23
Applicant: RF Micro Devices, Inc.
Inventor： Michael R. Kay , Nadim Khlat
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
公开(公告)号：US09041364B2
公开(公告)日：2015-05-26
申请号：US13690187
申请日：2012-11-30
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
IPC: G05F1/00 , G05F1/59 , H02M1/10 , H02M1/14 , H03F1/02 , H03F1/26 , H03F3/24 , H04B15/00 , H02M1/00
CPC classification number: G05F1/59 , H02M1/10 , H02M1/14 , H02M2001/0067 , 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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公开(公告)号：US20150139359A1
公开(公告)日：2015-05-21
申请号：US14548129
申请日：2014-11-19
Applicant: RF Micro Devices, Inc.
Inventor： Andrew F. Folkmann , Nadim Khlat
CPC classification number: H04L25/08 , H03F1/0211 , H03F1/0261 , H03F1/0266 , H03F1/3247 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2201/3215 , H03F2201/3227
Abstract: A baseband PA predistortion module, which includes a baseband combiner, a baseband PA correction circuit, and a baseband filter, is disclosed. The baseband PA correction circuit replicates behavior of an RF PA by processing a modulation data signal to provide a predistortion data signal. The behavior of the RF PA includes distortion. The modulation data signal is representative of an RF input signal to an RF PA and the predistortion data signal is representative of a correction needed at an output of the RF PA. The baseband filter receives and filters the predistortion data signal to provide a reduced predistortion data signal, such that a low frequency content of the reduced predistortion data signal is less than a low frequency content of the predistortion data signal. The baseband combiner receives and combines the modulation data signal and the reduced predistortion data signal to provide a baseband transmit signal.
Abstract translation: 公开了一种基带PA预失真模块，其包括基带组合器，基带PA校正电路和基带滤波器。 基带PA校正电路通过处理调制数据信号来复制RF PA的行为以提供预失真数据信号。 RF PA的行为包括失真。 调制数据信号表示到RF PA的RF输入信号，并且预失真数据信号表示在RF PA的输出处所需的校正。 基带滤波器接收并过滤预失真数据信号以提供减少的预失真数据信号，使得减少的预失真数据信号的低频内容小于预失真数据信号的低频内容。 基带组合器接收并组合调制数据信号和减少的预失真数据信号以提供基带发射信号。
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公开(公告)号：US20150085708A1
公开(公告)日：2015-03-26
申请号：US14497919
申请日：2014-09-26
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H04B1/40 , H04B1/0057 , H04B7/0413 , H04B15/00 , H04L5/08 , H04L5/14
Abstract: RF front-end circuitry, which includes RF switching and duplexing circuitry, a first RF diplexer, and a second RF diplexer, is disclosed. The RF switching and duplexing circuitry operates in one of a group of RF transmit modes, such that the group of RF transmit modes includes at least one transmit uplink carrier aggregation mode. The RF switching and duplexing circuitry provides at least one RF transmit signal based on the one of the group of RF transmit modes. The first RF diplexer is coupled between the RF switching and duplexing circuitry and a primary RF antenna. The second RF diplexer is coupled between the RF switching and duplexing circuitry and an auxiliary RF antenna.
Abstract translation: 公开了包括RF切换和双工电路的RF前端电路，第一RF双工器和第二RF双工器。 RF切换和双工电路以一组RF发射模式中的一种工作，使得RF组的RF发射模式包括至少一个发射上行链路载波聚合模式。 RF切换和双工电路基于RF发射模式中的一个提供至少一个RF发射信号。 第一RF双工器耦合在RF开关和双工电路和主RF天线之间。 第二RF双工器耦合在RF开关和双工电路和辅助RF天线之间。
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公开(公告)号：US20150054698A1
公开(公告)日：2015-02-26
申请号：US14465142
申请日：2014-08-21
Applicant: RF Micro Devices, Inc.
Inventor： Daniel Charles Kerr , Christian Rye Iversen , Eric K. Bolton , Ruediger Bauder , Nadim Khlat
IPC: H01Q5/00
Abstract: Antenna tuning circuitry includes an antenna tuning node, an antenna tuning switch, and a resonant tuning circuit. The antenna tuning node is coupled to a resonant conduction element of an antenna. The antenna tuning switch and the resonant tuning circuit are coupled in series between the antenna tuning switch and the antenna tuning node, such that the resonant tuning circuit is between the antenna tuning node and the antenna tuning switch. The resonant tuning circuit is configured to resonate at one or more harmonic frequencies generated by the antenna tuning switch such that a high impedance path is formed between the antenna tuning switch and the antenna tuning node at harmonic frequencies generated by the antenna tuning switch. Accordingly, harmonic interference generated by the antenna tuning switch is prevented from reaching the antenna, while simultaneously allowing for tuning of the antenna.
Abstract translation: 天线调谐电路包括天线调谐节点，天线调谐开关和谐振调谐电路。 天线调谐节点耦合到天线的谐振传导元件。 天线调谐开关和谐振调谐电路串联在天线调谐开关和天线调谐节点之间，使得谐振调谐电路在天线调谐节点和天线调谐开关之间。 谐振调谐电路被配置为在由天线调谐开关产生的一个或多个谐波频率下谐振，使得在天线调谐开关和天线调谐节点之间以由天线调谐开关产生的谐波频率形成高阻抗路径。 因此，防止由天线调谐开关产生的谐波干扰到达天线，同时允许调谐天线。
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公开(公告)号：US20140307836A1
公开(公告)日：2014-10-16
申请号：US14230620
申请日：2014-03-31
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat
CPC classification number: H04L5/1461 , H04B1/006 , H04B1/0064 , H04B1/1027 , H04B2001/1072 , H04L5/08 , H04L5/14
Abstract: A tunable filter reduces the total number of filters used in TDD (Time-Division Duplex) communication circuitry. The communication circuitry may include a tunable filter and a first switch associated with the tunable filter. The tunable filter may include a tuning component and a filtering component. The tuning component may be located with the first switch on a first die. The filtering component may be located in a laminate underneath the first switch. Power amplifiers for amplifying transmission signals may be located on a second die, and the second die may be located on the laminate.
Abstract translation: 可调滤波器减少了TDD（时分双工）通信电路中使用的滤波器总数。 通信电路可以包括可调谐滤波器和与可调谐滤波器相关联的第一开关。 可调谐滤波器可以包括调谐部件和滤波部件。 调谐部件可以与第一开关位于第一管芯上。 过滤部件可以位于第一开关下方的层压板中。 用于放大传输信号的功率放大器可以位于第二模具上，并且第二模具可以位于层压板上。
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