公开(公告)号：US20150222026A1

公开(公告)日：2015-08-06

申请号：US14613105

申请日：2015-02-03

Applicant: RF Micro Devices, Inc.

Inventor： Ali Tombak ,  Marcus Granger-Jones

IPC: H01Q21/28 ,  H01Q1/52

CPC classification number: H01Q21/28 ,  H01Q1/523

Abstract: RF circuitry, which includes a first main RF switching circuit and a second main RF switching circuit, is disclosed. The first main RF switching circuit is capable of providing an RF signal path between a first main RF port and a first selected one of a first RF antenna and a second RF antenna. The second main RF switching circuit is capable of providing an RF signal path between a second main RF port and a second selected one of the first RF antenna and the second RF antenna. The first main RF switching circuit includes a first pair of RF switches coupled in series between the first RF antenna and the first main RF port; a second pair of RF switches coupled in series between the second RF antenna and the first main RF port; a first shunt RF switch; and a second shunt RF switch.

Abstract translation: RF电路，其包括第一主RF切换电路和第二主RF切换电路。 第一主RF切换电路能够在第一主RF端口和第一RF天线和第二RF天线中的第一选定的一个之间提供RF信号路径。 第二主RF切换电路能够在第二主RF端口和第一RF天线和第二RF天线中的第二选定的一个之间提供RF信号路径。 第一主RF切换电路包括串联耦合在第一RF天线和第一主RF端口之间的第一对RF开关; 在所述第二RF天线和所述第一主RF端口之间串联耦合的第二对RF开关; 第一个并联RF开关; 和第二并联RF开关。

公开(公告)号：US09071430B2

公开(公告)日：2015-06-30

申请号：US13760201

申请日：2013-02-06

Applicant: RF Micro Devices, Inc.

Inventor： Ruediger Bauder ,  Marcus Granger-Jones ,  Nadim Khlat

IPC: H04B1/56 ,  H04L5/14 ,  H03H7/48 ,  H04L25/03 ,  H04B1/525 ,  H04B1/44

CPC classification number: H04L5/14 ,  H03H7/48 ,  H04B1/44 ,  H04B1/525 ,  H04L25/03878

Abstract: This disclosure includes embodiments of a radio frequency (RF) transceiver having a distributed duplex filtering topology. The RF transceiver includes a power amplifier and a tunable RF duplexer. The tunable RF duplexer is configured to input an RF transmission input signal from the power amplifier, generate an RF transmission output signal that operates within an RF transmission band in response to the RF transmission input signal from the power amplifier, and simultaneously output the RF transmission output signal to an antenna and input an RF receive input signal that operates within an RF receive band from the antenna. The power amplifier includes a plurality of RF amplifier stages coupled in cascode and an RF filter coupled between a first one of the RF amplifier stages and a second one of the RF amplifier stages. Accordingly, the RF filter is configured to provide tuning within the RF receive band.

Abstract translation: 本公开包括具有分布式双工滤波拓扑的射频（RF）收发器的实施例。 RF收发器包括功率放大器和可调谐RF双工器。 可调RF双工器被配置为从功率放大器输入RF传输输入信号，响应于来自功率放大器的RF传输输入信号产生在RF传输频带内操作的RF传输输出信号，并且同时输出RF传输 输出信号到天线，并输入在RF接收频带内工作的RF接收输入信号。 功率放大器包括耦合在共射共同转换中的多个RF放大器级和耦合在第一个RF放大器级之间的RF滤波器和RF放大器级中的第二个放大器级。 因此，RF滤波器被配置为在RF接收频带内提供调谐。

公开(公告)号：US20130336181A1

公开(公告)日：2013-12-19

申请号：US13852527

申请日：2013-03-28

Applicant: RF MICRO DEVICES, INC.

Inventor： Nadim Khlat ,  Marcus Granger-Jones

IPC: H04L5/06

CPC classification number: H04L5/06 ,  H04B1/0057 ,  H04L5/001 ,  H04L5/12 ,  H04L27/0002

Abstract: 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.

Abstract translation: 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：US20130321097A1

公开(公告)日：2013-12-05

申请号：US13904520

申请日：2013-05-29

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Marcus Granger-Jones ,  Ruediger Bauder

IPC: H01P5/12 ,  H01P1/213

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。

公开(公告)号：US20130249619A1

公开(公告)日：2013-09-26

申请号：US13892992

申请日：2013-05-13

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones

IPC: H03K17/04

CPC classification number: H03K17/04 ,  H03K17/04123 ,  H03K17/102 ,  H03K2217/0018

Abstract: The described FET switch topology greatly reduces the off state loading experienced by the gate biasing resistors in a stacked FET structure. The FET switch topology evenly distributes the voltage across the FET switch topology which reduces the voltage across the gate biasing resistors when the stacked FET structure is in an off state. Because the off state loading is reduced, there is a corresponding reduction of the current through bias resistors, which permits a reduction in the size of the bias resistors. This permits a substantial reduction in the area attributed to the bias resistors in an integrated solution.

Abstract translation: 所描述的FET开关拓扑大大减少了堆叠FET结构中的栅极偏置电阻所经历的关断状态负载。 FET开关拓扑结构在FET开关拓扑结构中均匀分布电压，当堆叠FET结构处于关闭状态时，降低栅极偏置电阻两端的电压。 由于关闭状态负载减小，所以通过偏置电阻器的电流相应地减小，这允许减小偏置电阻器的尺寸。 这允许在集成解决方案中归因于偏置电阻器的面积的显着减少。

公开(公告)号：US20130201881A1

公开(公告)日：2013-08-08

申请号：US13760201

申请日：2013-02-06

Applicant: RF MICRO DEVICES, INC.

Inventor： Ruediger Bauder ,  Marcus Granger-Jones ,  Nadim Khlat

IPC: H04L5/14

CPC classification number: H04L5/14 ,  H03H7/48 ,  H04B1/44 ,  H04B1/525 ,  H04L25/03878

Abstract: This disclosure includes embodiments of a radio frequency (RF) transceiver having a distributed duplex filtering topology. The RF transceiver includes a power amplifier and a tunable RF duplexer. The tunable RF duplexer is configured to input an RF transmission input signal from the power amplifier, generate an RF transmission output signal that operates within an RF transmission band in response to the RF transmission input signal from the power amplifier, and simultaneously output the RF transmission output signal to an antenna and input an RF receive input signal that operates within an RF receive band from the antenna. The power amplifier includes a plurality of RF amplifier stages coupled in cascode and an RF filter coupled between a first one of the RF amplifier stages and a second one of the RF amplifier stages. Accordingly, the RF filter is configured to provide tuning within the RF receive band.

Abstract translation: 本公开包括具有分布式双工滤波拓扑的射频（RF）收发器的实施例。 RF收发器包括功率放大器和可调谐RF双工器。 可调RF双工器被配置为从功率放大器输入RF传输输入信号，响应于来自功率放大器的RF传输输入信号产生在RF传输频带内操作的RF传输输出信号，并且同时输出RF传输 输出信号到天线，并输入在RF接收频带内工作的RF接收输入信号。 功率放大器包括耦合在共射共同转换中的多个RF放大器级和耦合在第一个RF放大器级之间的RF滤波器和RF放大器级中的第二个放大器级。 因此，RF滤波器被配置为在RF接收频带内提供调谐。

公开(公告)号：US20130127513A1

公开(公告)日：2013-05-23

申请号：US13748119

申请日：2013-01-23

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones ,  Brad Nelson ,  Ed Franzwa

IPC: H03L5/00

CPC classification number: H03L5/00 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/0603 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/49112 ,  H01L2224/49113 ,  H01L2924/181 ,  H03H11/245 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: In one embodiment, a temperature compensating attenuator is disclosed having an attenuation circuit and a control circuit. The temperature compensating attenuator circuit may include a first series connected attenuation circuit segment and a shunt connected attenuation circuit segment, as well as additional attenuation circuit segments. Each attenuation circuit segment includes a stack of transistors that are coupled to provide the attenuation circuit segment with an impedance attenuation level having a continuous impedance range. The control circuit may be operably associated with the stack of transistors in each attenuation circuit segment to control the attenuation level of the attenuation circuit. The temperature compensating attenuator includes a temperature compensating circuit that compensates for variations in operation of the attenuation circuit due to a temperature change.

Abstract translation: 在一个实施例中，公开了具有衰减电路和控制电路的温度补偿衰减器。 温度补偿衰减器电路可以包括第一串联连接的衰减电路段和分流连接的衰减电路段，以及附加的衰减电路段。 每个衰减电路段包括一堆晶体管，其被耦合以向衰减电路段提供具有连续阻抗范围的阻抗衰减电平。 控制电路可以可操作地与每个衰减电路段中的晶体管堆叠相关联，以控制衰减电路的衰减电平。 温度补偿衰减器包括温度补偿电路，其补偿由于温度变化引起的衰减电路的工作变化。

公开(公告)号：US20130113300A1

公开(公告)日：2013-05-09

申请号：US13668743

申请日：2012-11-05

Applicant: RF MICRO DEVICES, INC.

Inventor： Michael F. Zybura ,  Marcus Granger-Jones

IPC: H02J1/02

CPC classification number: H03H7/42 ,  H03H7/0115 ,  H03H7/09 ,  H03H7/1775

Abstract: In one embodiment, a balanced to unbalanced transformer utilizes a crossover configuration such that some portion of the secondary coil (inductor) is shared between two resonators (capacitors). Adding a first capacitor in parallel with a portion of the secondary inductor creates a first harmonic trap (filter), and also efficiently uses the secondary coil (inductor) as a resonating element.Adding a second capacitor which shares (crossover configuration) a portion of the secondary inductor with the first capacitor creates a second harmonic trap (filter), which may be tuned to the same harmonic as the first harmonic trap, or may be tuned to a different harmonic.

Abstract translation: 在一个实施例中，平衡到不平衡变压器利用交叉配置，使得次级线圈（电感器）的某些部分在两个谐振器（电容器）之间共享。 添加与次级电感器的一部分并联的第一电容器产生第一谐波陷波器（滤波器），并且还有效地使用次级线圈（电感器）作为谐振元件。 使用第一电容器添加共享（交叉配置）次级电感器的一部分的第二电容器产生二次谐波陷波器（滤波器），其可以调谐到与第一谐波陷波器相同的谐波，或者可以被调谐到不同的 谐波。