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    Dual antenna integrated carrier aggregation front end solution
    61.
    发明授权
    Dual antenna integrated carrier aggregation front end solution 有权
    双天线集成前端解决方案

    公开(公告)号：US09219594B2

    公开(公告)日：2015-12-22

    申请号：US13852527

    申请日：2013-03-28

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Marcus Granger-Jones

    IPC: H04L5/06 ,  H04L5/12

    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。

    RF TRIPLEXER ARCHITECTURE
    63.
    发明申请
    RF TRIPLEXER ARCHITECTURE 有权
    RF TRIPLEXER架构

    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

    IPC: H01P5/12 ,  H03H7/01

    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。

    TUNABLE DIPLEXER FOR CARRIER AGGREGATION APPLICATIONS
    64.
    发明申请
    TUNABLE DIPLEXER FOR CARRIER AGGREGATION APPLICATIONS 有权
    用于载体聚集应用的TUNABLE DIPLEXER

    公开(公告)号：US20140092795A1

    公开(公告)日：2014-04-03

    申请号：US13852309

    申请日：2013-03-28

    Applicant: RF MICRO DEVICES, INC.

    Inventor： Marcus Granger-Jones

    IPC: H04L5/08

    CPC classification number: H04L5/08 ,  H04B1/0057 ,  H04L5/0005

    Abstract: A tunable diplexer includes a high pass filter, a low pass filter, a high band port, a low band port, and an antenna port. The high pass filter is adapted to pass high band signals falling within a high pass band between the high band port and the antenna port, while attenuating signals outside of the high pass band. The low pass filter is adapted to pass low band signals falling within a low pass band between the low band port and the antenna port, while attenuating signals outside of the low pass band. The low pass filter includes a low stop band zero, which is adapted to attenuate signals within a low stop band. The low stop band zero is tunable, such that the low stop band can be adjusted to selectively attenuate signals within a given frequency band in the low pass band.

    Abstract translation: 可调谐双工器包括高通滤波器，低通滤波器，高频带端口，低频带端口和天线端口。 高通滤波器适于在高频带端口和天线端口之间通过落在高通带内的高频带信号，同时衰减高通频带外的信号。 低通滤波器适于在低频带和天线端口之间传递落在低通频带内的低频信号，同时衰减低通带外的信号。 低通滤波器包括低阻带0，其适于衰减低阻带内的信号。 低阻带零是可调谐的，使得可以调节低阻带以选择性地衰减低通带内的给定频带内的信号。

    TUNABLE HYBRID COUPLER
    65.
    发明申请
    TUNABLE HYBRID COUPLER 有权
    TUNABLE混合耦合器

    公开(公告)号：US20130201882A1

    公开(公告)日：2013-08-08

    申请号：US13760240

    申请日：2013-02-06

    Applicant: RF MICRO DEVICES, INC.

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

    IPC: H04L25/03 ,  H03H7/48

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

    Abstract: 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.

    Abstract translation: 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。

    RF filtering circuitry
    66.
    发明授权
    RF filtering circuitry 有权

    公开(公告)号：US10298196B2

    公开(公告)日：2019-05-21

    申请号：US15141283

    申请日：2016-04-28

    Applicant: RF Micro Devices, Inc.

    Inventor： Dirk Robert Walter Leipold ,  George Maxim ,  Marcus Granger-Jones ,  Baker Scott

    IPC: H03H7/01 ,  H03H7/09

    Abstract: Embodiments of radio frequency (RF) filtering circuitry are disclosed. In one embodiment, the RF filtering circuitry includes a first port, a second port, a first RF filter path, and a second RF filter path. The first RF filter path is connected between the first port and the second port and includes at least a pair of weakly coupled resonators. The weakly coupled resonators are configured such that a first transfer response between the first port and the second port defines a first passband. The second RF filter path is coupled to the first RF filter path and is configured such that the first transfer response between the first port and the second port defines a stopband adjacent to the first passband without substantially increasing ripple variation of the first passband defined by the first transfer response.

    Switch topology for switching filters multiplexers
    68.
    发明授权
    Switch topology for switching filters multiplexers 有权

    公开(公告)号：US09973173B2

    公开(公告)日：2018-05-15

    申请号：US15010829

    申请日：2016-01-29

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Marcus Granger-Jones

    IPC: H01P1/10 ,  H01P1/213 ,  H03H19/00 ,  H04B1/00 ,  H04B1/44 ,  H03H7/46

    CPC classification number: H03H19/002 ,  H03H7/465 ,  H03H2250/00 ,  H04B1/006

    Abstract: This disclosure relates to radio frequency (RF) front end circuitry used to route RF signals. In one embodiment, the RF front end circuitry has a filter circuit and a switch device. The switch device includes a common port, an RF port, and switchable path connected in series between the common port and the RF port. The switch device is configured to present approximately the filter capacitance of the filter circuit at the common port when the switchable path is closed. However, when the switchable path is open, the switch device is configured to present a device capacitance at the common port that is approximately equal to the filter capacitance of the filter circuit. In this manner, if the common port is connected to an antenna, the capacitance seen by the antenna from the common port remains substantially unchanged regardless of which of the switchable path is opened or closed.

    High isolation dual antenna RF switch architectures
    69.
    发明授权
    High isolation dual antenna RF switch architectures 有权

    公开(公告)号：US09966671B2

    公开(公告)日：2018-05-08

    申请号：US14613105

    申请日：2015-02-03

    Applicant: RF Micro Devices, Inc.

    Inventor： Ali Tombak ,  Marcus Granger-Jones

    IPC: H01Q3/24 ,  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.

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