公开(公告)号：US09196945B2

公开(公告)日：2015-11-24

申请号：US13904520

申请日：2013-05-29

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat ,  Marcus Granger-Jones ,  Ruediger Bauder

IPC分类号： H01P5/12 ,  H04B1/00 ,  H03H7/18

CPC分类号： H01P5/12 ,  H04B1/0057

摘要： 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).

摘要翻译： 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。

公开(公告)号：US20150207238A1

公开(公告)日：2015-07-23

申请号：US14600977

申请日：2015-01-20

申请人： RF Micro Devices, Inc.

发明人： Ruediger Bauder

IPC分类号： H01Q21/00

CPC分类号： H01Q9/42 ,  H01Q21/24 ,  H01Q21/28

摘要： RF communications circuitry, which includes a first RF antenna element, a second RF antenna element, a third RF antenna element, and a fourth RF antenna element is disclosed. The first RF antenna element is proximal to the second RF antenna element. The third RF antenna element is proximal to the fourth RF antenna element. A primary axis of the first RF antenna element is about perpendicular to a primary axis of one of the third RF antenna element and the fourth RF antenna element.

摘要翻译： 公开了包括第一RF天线元件，第二RF天线元件，第三RF天线元件和第四RF天线元件的RF通信电路。 第一RF天线元件靠近第二RF天线元件。 第三RF天线元件靠近第四RF天线元件。 第一RF天线元件的主轴大致垂直于第三RF天线元件和第四RF天线元件之一的主轴。

公开(公告)号：US09042275B2

公开(公告)日：2015-05-26

申请号：US13760159

申请日：2013-02-06

申请人： RF Micro Devices, Inc.

发明人： Ruediger Bauder ,  Marcus Granger-Jones ,  Nadim Khlat

IPC分类号： H04L5/14 ,  H03H7/48 ,  H04L25/03

CPC分类号： H04L5/14 ,  H03H7/48 ,  H04B1/44 ,  H04B1/525 ,  H04L25/03878

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20150054698A1

公开(公告)日：2015-02-26

申请号：US14465142

申请日：2014-08-21

申请人： RF Micro Devices, Inc.

发明人： Daniel Charles Kerr ,  Christian Rye Iversen ,  Eric K. Bolton ,  Ruediger Bauder ,  Nadim Khlat

IPC分类号： H01Q5/00

CPC分类号： H01Q5/328 ,  H01Q5/335

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08749305B2

公开(公告)日：2014-06-10

申请号：US13644089

申请日：2012-10-03

申请人： RF Micro Devices, Inc.

发明人： James M. Retz ,  Ruediger Bauder

IPC分类号： H03F1/14

CPC分类号： G05F3/02 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/24 ,  H03F3/72 ,  H03F2203/7215 ,  H03F2203/7221

摘要： The embodiments disclosed in the detailed description include a power amplifier having a low power mode amplifier, a medium power mode amplifier, and a high power mode amplifier in communication with a radio frequency (RF) output load. The exemplary embodiments of the power amplifier permit a wireless device to select the most power efficient means to transmit an RF signal based upon the desired output power level.

摘要翻译： 详细描述中公开的实施例包括具有低功率模式放大器，中功率模式放大器和与射频（RF）输出负载通信的高功率模式放大器的功率放大器。 功率放大器的示例性实施例允许无线设备基于期望的输出功率电平来选择用于发射RF信号的最高功率的装置。

公开(公告)号：US10528502B2

公开(公告)日：2020-01-07

申请号：US14659371

申请日：2015-03-16

申请人： RF Micro Devices, Inc.

发明人： Christopher Truong Ngo ,  Alexander Wayne Hietala ,  Christian Rye Iversen ,  Ruediger Bauder

IPC分类号： G06F13/364

摘要： Embodiments of bus interface systems are disclosed. In one embodiment, a bus interface system includes a master bus controller and a slave bus controller coupled along a bus line. The master bus controller is configured to generate an input data signal that is received by the slave bus controller along the bus line. The slave bus controller includes power conversion circuitry configured to convert the input data signal from the master bus controller into a supply voltage. By providing the power conversion circuitry, the slave bus controller is powered using the input data signal and without requiring an additional bus line to transfer a supply voltage to the slave bus controller.

公开(公告)号：US10185683B2

公开(公告)日：2019-01-22

申请号：US14575491

申请日：2014-12-18

申请人： RF Micro Devices, Inc.

发明人： Christopher Truong Ngo ,  Alexander Wayne Hietala ,  Christian Rye Iversen ,  Ruediger Bauder

IPC分类号： G06F13/00 ,  G06F13/362 ,  G06F13/42

摘要： A bus interface system is disclosed that includes a master bus controller and a slave bus controller that are coupled by a bus line. The slave bus controller includes a decoder that allows for data to be transmitted along just the bus line. The decoder includes an oscillator, a first counter, and a comparison circuit. The oscillator is configured to be enabled by data pulses defined by the input data signal and generate oscillation pulses while enabled. The first counts the oscillation pulses and indicates a number of the oscillation pulses generated during a time slot. The comparison circuit is configured to this number with a reference number and generate a data output that represents a first logical value in response to the number being greater than the reference parameter and represents a second logical value in response to the number being less than the reference parameter.

公开(公告)号：US20140028521A1

公开(公告)日：2014-01-30

申请号：US13851657

申请日：2013-03-27

申请人： RF MICRO DEVICES, INC.

发明人： Ruediger Bauder ,  Christian Rye Iversen

IPC分类号： H03H7/38 ,  H01Q1/50

CPC分类号： H03H7/38 ,  H01Q1/50 ,  H03H7/40

摘要： Adjustable impedance tuning circuitry includes a first impedance matching terminal, a second impedance matching terminal, and a plurality of passive components adapted to match the impedance of the first impedance matching terminal and the second impedance matching terminal. The plurality of passive components includes one or more tunable components adapted to adjust the impedance of the adjustable impedance tuning circuitry to maintain an impedance match between the first impedance matching terminal and the second impedance matching terminal over a variety of operating conditions. Each of the one or more tunable components includes one or more switches adapted to selectively alter the impedance of the tunable component. The one or more switches are integrated onto a single semiconductor die in order to facilitate the performance of the adjustable impedance tuning circuitry over a wide bandwidth.

摘要翻译： 可调阻抗调谐电路包括第一阻抗匹配端子，第二阻抗匹配端子和适于匹配第一阻抗匹配端子和第二阻抗匹配端子的阻抗的多个无源部件。 多个无源部件包括适于调节可调阻抗调谐电路的阻抗的一个或多个可调部件，以便在各种操作条件下保持第一阻抗匹配端子和第二阻抗匹配端子之间的阻抗匹配。 一个或多个可调组件中的每一个包括适于选择性地改变可调组件的阻抗的一个或多个开关。 一个或多个开关被集成到单个半导体管芯上，以便于在宽带宽上实现可调阻抗调谐电路的性能。

公开(公告)号：US20140016517A1

公开(公告)日：2014-01-16

申请号：US14029015

申请日：2013-09-17

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat ,  Ruediger Bauder ,  Andrew F. Folkmann

IPC分类号： H04L5/14

CPC分类号： H04L5/14 ,  H04B1/0483

摘要： 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.

摘要翻译： 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：US20130201882A1

公开(公告)日：2013-08-08

申请号：US13760240

申请日：2013-02-06

申请人： RF MICRO DEVICES, INC.

发明人： Ruediger Bauder ,  Marcus Granger-Jones ,  Nadim Khlat

IPC分类号： H04L25/03 ,  H03H7/48

CPC分类号： H04L5/14 ,  H03H7/48 ,  H04B1/44 ,  H04B1/525 ,  H04L25/03878

摘要： 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.

摘要翻译： 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。