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41.发明申请公开(公告)号：US20160308576A1
公开(公告)日：2016-10-20
申请号：US15062693
申请日：2016-03-07
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Marcus Granger-Jones
IPC: H04B1/48 , H04L5/14 , H04B1/3827
CPC classification number: H04B1/18 , H03F3/24 , H03F2200/294 , H03F2200/451 , H04B1/0458 , H04B2001/0408 , H04L5/1469
Abstract: This disclosure relates to radio frequency (RF) front end circuitry for portable communication devices. In one embodiment, the RF front end circuitry includes an antenna, a switchable receive path configured to be opened and to be closed, a coaxial cable, and a low noise amplifier (LNA). The LNA is coupled so as to drive the coaxial cable. Thus, when the switchable receive path is closed, an RF receive signal received by the antenna can propagate through the switchable receive path to the LNA. Since the LNA is driving the coaxial cable, the RF receive signal can propagate through the coaxial cable without being excessively degraded. In this manner, embodiments of the RF front end circuitry can be utilized to provide antenna swapping and RF transceiver circuitry coupled to the coaxial cable can receive the RF receive signal from the coaxial cable without excessive degradation.
Abstract translation: 本公开涉及用于便携式通信设备的射频（RF）前端电路。 在一个实施例中，RF前端电路包括天线，被配置为打开和关闭的可切换接收路径，同轴电缆和低噪声放大器（LNA）。 LNA耦合以驱动同轴电缆。 因此，当可切换接收路径闭合时，由天线接收的RF接收信号可以通过可切换的接收路径传播到LNA。 由于LNA驱动同轴电缆，RF接收信号可以通过同轴电缆传播而不会过度劣化。 以这种方式，可以利用RF前端电路的实施例来提供天线交换，耦合到同轴电缆的RF收发器电路可以从同轴电缆接收RF接收信号而不会过度降级。
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公开(公告)号：US20160126929A1
公开(公告)日：2016-05-05
申请号：US14931165
申请日：2015-11-03
Applicant: RF Micro Devices, Inc.
Inventor： Dirk Robert Walter Leipold , George Maxim , Marcus Granger-Jones , Nadim Khlat , Baker Scott
IPC: H03H7/46
CPC classification number: H03H7/463 , H01F17/0006
Abstract: RF multiplexer circuitry includes a first signal path coupled between a first intermediate node and a common node, a second signal path coupled between a second intermediate node and the common node, first resonator circuitry coupled between the first signal path and ground, and second resonator circuitry coupled between the second signal path and ground. The first resonator circuitry is configured to allow signals within a first frequency pass band to pass between the first intermediate node and the common node, while attenuating signals outside of the first frequency pass band. The first resonator circuitry includes a first LC resonator. The second resonator circuitry is configured to allow signals within a second frequency pass band to pass between the second intermediate node and the common node, while attenuating signals outside of the second frequency pass band.
Abstract translation: RF多路复用器电路包括耦合在第一中间节点和公共节点之间的第一信号路径，耦合在第二中间节点和公共节点之间的第二信号路径，耦合在第一信号路径和地之间的第一谐振器电路和第二谐振器电路 耦合在第二信号路径和地之间。 第一谐振器电路被配置为允许在第一频率通带内的信号在第一中间节点和公共节点之间通过，同时衰减第一频率通带之外的信号。 第一谐振器电路包括第一LC谐振器。 第二谐振器电路被配置为允许在第二频带内的信号在第二中间节点和公共节点之间通过，同时衰减第二频带之外的信号。
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公开(公告)号：US20160126623A1
公开(公告)日：2016-05-05
申请号：US14931720
申请日：2015-11-03
Applicant: RF Micro Devices, Inc.
Inventor： George Maxim , Dirk Robert Walter Leipold , Marcus Granger-Jones , Baker Scott
IPC: H01Q1/50
CPC classification number: H01L23/315 , H01L21/02266 , H01L21/02282 , H01L21/304 , H01L21/30604 , H01L21/565 , H01L21/6835 , H01L23/20 , H01L23/291 , H01L23/293 , H01L23/3121 , H01L23/3135 , H01L23/36 , H01L23/367 , H01L23/3731 , H01L23/3737 , H01L23/5223 , H01L23/5227 , H01L23/5228 , H01L23/562 , H01L24/17 , H01L28/10 , H01L28/20 , H01L28/40 , H01L2221/68327 , H01L2221/6834 , H01L2221/68381 , H01L2224/131 , H01L2224/13147 , H01L2224/16225 , H01L2224/16227 , H01L2224/73204 , H01L2224/92125 , H01L2924/0002 , H01L2924/19011 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01Q1/50 , H05K1/0203 , H05K1/181 , H01L2924/00 , H01L2924/014 , H01L2924/00014
Abstract: Antenna aperture tuning circuitry includes a first signal path and a second signal path coupled in parallel between an antenna radiating element and ground. A first LC resonator and a second LC resonator are each coupled between the first signal path and ground. The first LC resonator and the second LC resonator are electromagnetically coupled such that a coupling factor between the first LC resonator and the second LC resonator is between about 1.0% and 40.0%. A third LC resonator and a fourth LC resonator are each coupled between the second signal path and ground. The third LC resonator and the fourth LC resonator are electromagnetically coupled such that a coupling factor between the third LC resonator and the fourth LC resonator is between about 1.0% and 40.0%.
Abstract translation: 天线孔径调谐电路包括在天线辐射元件和地之间并联耦合的第一信号路径和第二信号路径。 第一LC谐振器和第二LC谐振器各自耦合在第一信号路径和地之间。 第一LC谐振器和第二LC谐振器被电磁耦合，使得第一LC谐振器和第二LC谐振器之间的耦合因子在约1.0％和40.0％之间。 第三LC谐振器和第四LC谐振器各自耦合在第二信号路径和地之间。 第三LC谐振器和第四LC谐振器被电磁耦合，使得第三LC谐振器和第四LC谐振器之间的耦合因子在约1.0％和40.0％之间。
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公开(公告)号：US09236957B2
公开(公告)日：2016-01-12
申请号：US14271921
申请日：2014-05-07
Applicant: RF Micro Devices, Inc.
Inventor： Eric K. Bolton , Daniel Charles Kerr , Marcus Granger-Jones
CPC classification number: H04B15/02
Abstract: RF switching circuitry includes an RF switch coupled between an input node and an output node. Distortion compensation circuitry is coupled in parallel with the RF switch between the input node and the output node. The RF switch is configured to selectively pass an RF signal from the input node to the output node based on a first switching control signal. The distortion compensation circuitry is configured to boost a portion of the RF signal that is being compressed by the RF switch when the amplitude of the RF signal is above a predetermined threshold by selectively injecting current into one of the input node or the output node. Boosting a portion of the RF signal that is being compressed by the RF switch allows a signal passing through the RF switch to remain substantially linear, thereby improving the performance of the RF switching circuitry.
Abstract translation: RF切换电路包括耦合在输入节点和输出节点之间的RF开关。 失真补偿电路与输入节点和输出节点之间的RF开关并联耦合。 RF开关被配置为基于第一开关控制信号选择性地将RF信号从输入节点传递到输出节点。 失真补偿电路被配置为通过选择性地将电流注入到输入节点或输出节点之一时，通过RF信号的幅度高于预定阈值来升高被RF开关压缩的RF信号的一部分。 升高由RF开关压缩的RF信号的一部分允许通过RF开关的信号保持基本上线性，从而提高RF开关电路的性能。
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公开(公告)号：US09214922B2
公开(公告)日：2015-12-15
申请号：US13935842
申请日：2013-07-05
Applicant: RF Micro Devices, Inc.
Inventor： Marcus Granger-Jones
CPC classification number: H03J5/246 , H01G4/38 , H01G4/40 , H01G7/00 , H03J2200/10
Abstract: A tunable series resonant circuit includes a voltage source, a source impedance, a variable capacitor, a series inductor, and a load impedance. The variable capacitor includes a sPAC (series programmable array of capacitors) having desirable characteristics for a tunable series resonant circuit. The sPAC may be a binary weighted sPAC, a thermometer coded sPAC, or some other sPAC.
Abstract translation: 可调谐串联谐振电路包括电压源，源阻抗，可变电容器，串联电感器和负载阻抗。 可变电容器包括具有用于可调谐串联谐振电路的期望特性的sPAC（串联可编程电容器阵列）。 sPAC可以是二进制加权sPAC，温度计编码sPAC或其他一些sPAC。
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Patent Agency Ranking
46.发明申请RF FRONT-END CIRCUITRY WITH TRANSISTOR AND MICROELECTROMECHANICAL MULTIPLE THROW SWITCHES 有权具有晶体管和微电子多功能开关的RF前端电路公开(公告)号：US20150303976A1
公开(公告)日：2015-10-22
申请号：US14011802
申请日：2013-08-28
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Jonathan Hale Hammond , Marcus Granger-Jones
IPC: H04B1/44
Abstract: This disclosure relates generally to radio frequency (RF) front-end circuitry for routing RF signals to and/or from one or more antennas. Exemplary RF front-end circuitry includes a multiple throw solid-state transistor switch (MTSTS) and a multiple throw microelectromechanical switch (MTMEMS). The MTSTS may be configured to selectively couple a first pole port to any one of a first set of throw ports. The MTMEMS is configured to selectively couple a second pole port to any one of a second set of throw ports. The second pole port of the MTMEMS is coupled to a first throw port in the first set of throw ports of the MTSTS. The MTSTS helps prevent hot switching in the MTMEMS since the first throw port of the MTSTS may be decoupled from the second pole port of the MTMEMS before decoupling the second pole port from a selectively coupled throw port of the MTMEMS.
Abstract translation: 本公开一般涉及用于将RF信号路由到和/或来自一个或多个天线的射频（RF）前端电路。 示例性RF前端电路包括多掷固态晶体管开关（MTSTS）和多掷微机电开关（MTMEMS）。 MTSTS可以被配置为选择性地将第一极端口耦合到第一组投掷端口中的任何一个。 MTMEMS被配置为选择性地将第二极端口耦合到第二组投掷端口中的任何一个。 MTMEMS的第二个极端口连接到MTSTS的第一组丢弃端口中的第一个端口。 MTSTS有助于防止MTMEMS中的热切换，因为在将第二个极端口与MTMEMS的选择性耦合的投掷端口分离之前，MTSTS的第一个端口可以与MTMEMS的第二个极端口分离。
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公开(公告)号：US20150263831A1
公开(公告)日：2015-09-17
申请号：US14659314
申请日：2015-03-16
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Marcus Granger-Jones
CPC classification number: H04B1/525
Abstract: RF circuitry, which includes a first hybrid RF coupler, a second hybrid RF coupler, and a third hybrid RF coupler, is disclosed. The first hybrid RF coupler is coupled to a first RF antenna. The second hybrid RF coupler is configured to receive a first lowband RF receive signal via the first RF antenna. The first hybrid RF coupler is configured to receive one of a first midband RF receive signal and a first highband RF receive signal via the first RF antenna. The third hybrid RF coupler configured to receive another of the first midband RF receive signal and the first highband RF receive signal via the first RF antenna.
Abstract translation: RF电路，其包括第一混合RF耦合器，第二混合RF耦合器和第三混合RF耦合器。 第一混合RF耦合器耦合到第一RF天线。 第二混合RF耦合器经配置以经由第一RF天线接收第一低频RF接收信号。 第一混合RF耦合器经配置以经由第一RF天线接收第一中频带RF接收信号和第一高频RF接收信号中的一个。 第三混合RF耦合器被配置为经由第一RF天线接收另一个第一中频带RF接收信号和第一高频RF接收信号。
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公开(公告)号：US20150117280A1
公开(公告)日：2015-04-30
申请号：US14523065
申请日：2014-10-24
Applicant: RF Micro Devices, Inc.
Inventor： Nadim Khlat , Marcus Granger-Jones
CPC classification number: H04B1/50 , H04B1/0057 , H04B10/556 , H04L5/08 , H04L27/2085
Abstract: Embodiments of a tunable radio frequency (RF) diplexer and methods of duplexing transmission and receive signals are disclosed. In one embodiment, the RF diplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit, and a phase inversion component. Both the RF filter circuit and the phase inversion component are connected between the first hybrid coupler and the second hybrid coupler. In some embodiments, the phase inversion component is provided by the RF filter circuit, while in other embodiments, the phase inversion component is provided separately. The phase inversion component is configured to provide a differential phase shift. The benefit of introducing the differential phase shift is that it provides increased isolation and broadband isolation between the different frequency bands being diplexed by the RF diplexer.
Abstract translation: 公开了可调谐射频（RF）双工器的实施例和双工传输和接收信号的方法。 在一个实施例中，RF双工器包括第一混合耦合器，第二混合耦合器和RF滤波器电路以及相位转换部件。 RF滤波器电路和相位反转分量都连接在第一混合耦合器和第二混合耦合器之间。 在一些实施例中，相位反转分量由RF滤波器电路提供，而在其它实施例中，分相提供相位反转分量。 相位分量被配置为提供差分相移。 引入差分相移的好处是它提供了由RF双工器双工的不同频带之间增加的隔离和宽带隔离。
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公开(公告)号：US08988127B2
公开(公告)日：2015-03-24
申请号：US13748119
申请日：2013-01-23
Applicant: RF Micro Devices, Inc.
Inventor： Marcus Granger-Jones , Brad Nelson , Ed Franzwa
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。
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公开(公告)号：US20140334362A1
公开(公告)日：2014-11-13
申请号：US14444128
申请日：2014-07-28
Applicant: RF Micro Devices, Inc.
Inventor： Marcus Granger-Jones
CPC classification number: H04L5/08 , H03J3/20 , H03J2200/10 , H04L5/001 , H04L5/0023 , H04L5/14
Abstract: A tunable diplexer includes a high band port, a low band port, an antenna port, a high pass filter, and a low pass filter. The high pass filter is coupled between the high band port and the antenna port, and is configured to pass signals within a high pass band between the high band port and the antenna port. The high pass filter includes a high band path stop band zero, which is configured to selectively attenuate signals within a high band path stop band. The low pass filter is coupled between the low band port and the antenna port, and is configured to pass signals within a low pass band between the low band port and the antenna port. The low pass filter includes a low band path stop band zero, which is configured to selectively attenuate signals within a low band path stop band.
Abstract translation: 可调谐双工器包括高带端口，低带端口，天线端口，高通滤波器和低通滤波器。 高通滤波器耦合在高频带端口和天线端口之间，并被配置为在高频带端口和天线端口之间的高通频带内传递信号。 高通滤波器包括高带路径阻带零点，其被配置为选择性地衰减高频带路径阻带内的信号。 低通滤波器耦合在低频带端口和天线端口之间，并且被配置为在低频带端口和天线端口之间传递低通频带内的信号。 低通滤波器包括低带路径阻带零点，其被配置为选择性地衰减低频带路径阻带内的信号。
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