公开(公告)号：US09698751B2

公开(公告)日：2017-07-04

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 ,  H01F17/00

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.

公开(公告)号：US20170033760A1

公开(公告)日：2017-02-02

申请号：US15141283

申请日：2016-04-28

Applicant: RF Micro Devices, Inc.

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

IPC: H03H7/46 ,  H03H7/01

CPC classification number: H03H7/1775 ,  H03H7/0115 ,  H03H7/0161 ,  H03H7/09 ,  H03H2007/013

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.

Abstract translation: 公开了射频（RF）滤波电路的实施例。 在一个实施例中，RF滤波电路包括第一端口，第二端口，第一RF滤波器路径和第二RF滤波器路径。 第一RF滤波器路径连接在第一端口和第二端口之间，并且包括至少一对弱耦合谐振器。 弱耦合谐振器被配置为使得第一端口和第二端口之间的第一传输响应限定第一通带。 第二RF滤波器路径被耦合到第一RF滤波器路径并且被配置为使得第一端口和第二端口之间的第一传输响应限定与第一通带相邻的阻带，而基本上不增加由第一通带限定的第一通带的纹波变化 第一传递响应。

公开(公告)号：US20160191012A1

公开(公告)日：2016-06-30

申请号：US15004084

申请日：2016-01-22

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Andrew F. Folkmann ,  Robert Aigner ,  Marcus Granger-Jones

IPC: H03H9/58 ,  H03H9/205

CPC classification number: H03H9/542 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/6489

Abstract: An RF ladder filter having a parallel capacitance compensation circuit is disclosed. The parallel capacitance compensation circuit is made up of a first inductive element with a first T-terminal and a first end coupled to a first ladder terminal and a second inductive element with a second T-terminal that is coupled to the first T-terminal of the first inductive element and a second end coupled to a second ladder terminal. Further included is a compensating acoustic RF resonator (ARFR) having a fixed node terminal and a third T-terminal that is coupled to the first T-terminal of the first inductive element and the second T-terminal of the second inductive element, and a finite number of series-coupled ladder ARFRs, wherein the parallel capacitance compensation circuit is coupled across one of the finite number of series-coupled ARFRs by way of the first ladder terminal and the second ladder terminal.

Abstract translation: 公开了一种具有并联电容补偿电路的RF梯形滤波器。 并联电容补偿电路由具有第一T端和第一端耦合到第一梯形终端的第一电感元件和与第二电感元件耦合的第二电感元件组成，第二电感元件连接到第一T端的第一T端 第一电感元件和耦合到第二梯形终端的第二端。 还包括具有固定节点终端的补偿声RF谐振器（ARFR）和耦合到第一电感元件的第一T端和第二电感元件的第二T端的第三T端，以及 有限数量的串联耦合梯形ARFR，其中并联电容补偿电路通过第一梯形终端和第二梯形终端耦合在有限数量的串联耦合ARFR之一上。

公开(公告)号：US20160127063A1

公开(公告)日：2016-05-05

申请号：US14927565

申请日：2015-10-30

Applicant: RF Micro Devices, Inc.

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

IPC: H04J1/08 ,  H04B1/40

CPC classification number: H01F27/2804 ,  H01F2027/2809 ,  H03H7/38 ,  H03H7/463 ,  H04B1/40 ,  H04J1/08

Abstract: Multiplexing circuitry is disclosed that includes filtering circuitry, which provides a first transfer function between a common port and a first port and a second transfer function between the common port and a second port. The first transfer function and second transfer function provide a first passband and a second passband, respectively. The first transfer function also has a stopband provided within the second passband of the second transfer function because the filtering circuitry includes a first filter path and a second filter path, wherein the second filter path has a first and second parallel resonant circuit provided in shunt with respect to the second filter path and weakly coupled to one another. The weak coupling between the first parallel resonant circuit and the second parallel resonant circuit naturally provides the stopband in the first transfer function within the second passband of the second transfer function.

Abstract translation: 公开了包括滤波电路的多路复用电路，该滤波电路在公共端口和第一端口之间提供第一传输功能，以及在公共端口和第二端口之间提供第二传输功能。 第一传递函数和第二传递函数分别提供第一通带和第二通带。 第一传递函数还具有设置在第二传递函数的第二通带内的阻带，因为滤波电路包括第一滤波器路径和第二滤波器路径，其中第二滤波器路径具有第一和第二并联谐振电路， 相对于第二过滤器路径并且彼此弱耦合。 第一并联谐振电路和第二并联谐振电路之间的弱耦合自然地在第二传递函数的第二通带内的第一传递函数中提供阻带。

公开(公告)号：US20160126609A1

公开(公告)日：2016-05-05

申请号：US14931541

申请日：2015-11-03

Applicant: RF Micro Devices, Inc.

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

IPC: H01P9/00

CPC classification number: H01P1/20381 ,  H01P3/085 ,  H01P5/028 ,  H01P9/006

Abstract: The present disclosure relates to coupled slow-wave transmission lines. In this regard, a transmission line structure is provided. The transmission line structure includes a first undulating signal path formed from first loop structures. The transmission line structure also includes a second undulating signal path formed from second loop structures. The second undulating signal path is disposed alongside of the first undulating signal path. Further, a first ground structure is disposed above or below either one or both of the first undulating signal path and the second undulating signal path.

Abstract translation: 本公开涉及耦合的慢波传输线。 在这方面，提供传输线结构。 传输线结构包括由第一环结构形成的第一起伏信号路径。 传输线结构还包括由第二环结构形成的第二起伏信号路径。 第二起伏信号路径被布置在第一起伏信号路径的旁边。 此外，第一接地结构设置在第一起伏信号路径和第二起伏信号路径中的任一个或两个之上或之下。

公开(公告)号：US09203596B2

公开(公告)日：2015-12-01

申请号：US13852309

申请日：2013-03-28

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones

IPC: H04L5/00 ,  H04L5/08 ,  H04B1/00

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。

公开(公告)号：US20150341058A1

公开(公告)日：2015-11-26

申请号：US14820006

申请日：2015-08-06

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Marcus Granger-Jones

IPC: H04B1/00

CPC classification number: H04B7/01 ,  H04B1/0057 ,  H04B1/18 ,  H04B1/58 ,  H04B7/0837

Abstract: A reconfigurable RF receive diplexer, which includes a first hybrid RF coupler, a second hybrid RF coupler, and reconfigurable RF filter circuitry, is disclosed. The reconfigurable RF receive diplexer receives a first adjunct RF antenna receive signal via a first isolation port to provide a first adjunct RF receive signal via a second main port. The reconfigurable RF receive diplexer further receives a first RF transmit signal via a first main port to provide a first RF antenna transmit signal via the first isolation port. The reconfigurable RF receive diplexer operates in each of a group of operating modes, such that during a first operating mode, a carrier frequency of the first adjunct RF antenna receive signal is within a first RF communications band; and during a second operating mode, a carrier frequency of the first adjunct RF antenna receive signal is within a second RF communications band.

Abstract translation: 公开了一种可重构RF接收双工器，其包括第一混合RF耦合器，第二混合RF耦合器和可重新配置的RF滤波器电路。 可重新配置的RF接收双工器经由第一隔离端口接收第一附加RF天线接收信号，以经由第二主端口提供第一附加RF接收信号。 可重构RF接收双工器还经由第一主端口接收第一RF发射信号，以经由第一隔离端口提供第一RF天线发射信号。 可重构RF接收双工器在一组操作模式中的每一个中操作，使得在第一操作模式期间，第一附属RF天线接收信号的载波频率在第一RF通信频带内; 并且在第二操作模式期间，第一附加RF天线接收信号的载波频率在第二RF通信频带内。

公开(公告)号：US09190979B2

公开(公告)日：2015-11-17

申请号：US13925891

申请日：2013-06-25

Applicant: RF Micro Devices, Inc.

Inventor： Marcus Granger-Jones ,  Michael F. Zybura ,  Ruediger Bauder

IPC: H01P5/18 ,  H03H7/48 ,  H04L5/14 ,  H01P5/12 ,  H03H1/00 ,  H04L25/02

CPC classification number: H03H7/48 ,  H03H2001/0085 ,  H03H2001/0092 ,  H04L5/143 ,  H04L25/0278

Abstract: This disclosure relates to hybrid couplers for radio frequency (RF) signals. The hybrid coupler includes a first port, a second port, a third port, a fourth port, a first inductive element connected from the first port to the third port, and a second inductive element connected from the second port to the fourth port. The hybrid coupler further includes a first capacitive element and a second capacitive element. The first capacitive element is connected between an intermediary node of the first inductive element and either the first port or the third port, while the second capacitive element is coupled between an intermediary node of the second inductive element and either the second port or the fourth port. Accordingly, the first capacitive element and a portion of the first inductive element and the second capacitive element and a portion of the second capacitive element each form a harmonic trap.

Abstract translation: 本公开涉及用于射频（RF）信号的混合耦合器。 混合耦合器包括从第一端口连接到第三端口的第一端口，第二端口，第三端口，第四端口，第一感性元件以及从第二端口连接到第四端口的第二感应元件。 混合耦合器还包括第一电容元件和第二电容元件。 第一电容元件连接在第一电感元件的中间节点与第一端口或第三端口之间，而第二电容元件耦合在第二电感元件的中间节点与第二端口或第四端口 。 因此，第一电容元件和第一电感元件和第二电容元件的一部分和第二电容元件的一部分各自形成谐波陷阱。

公开(公告)号：US20150288389A1

公开(公告)日：2015-10-08

申请号：US14681725

申请日：2015-04-08

Applicant: RF Micro Devices, Inc.

Inventor： Nadim Khlat ,  Marcus Granger-Jones

IPC: H04B1/00 ,  H04B7/01

CPC classification number: H04B1/0057 ,  H04B1/18 ,  H04B7/01 ,  H04B7/0837

Abstract: A first RF receive diplexer, which includes a first hybrid RF coupler, a second hybrid RF coupler, and RF filter circuitry, is disclosed. The first hybrid RF coupler has a first main port, a first pair of quadrature ports, and a first isolation port, which is coupled to an RF antenna. The second hybrid RF coupler has a second main port and a second pair of quadrature ports. The RF filter circuitry is coupled between the first pair of quadrature ports and the second pair of quadrature ports. The first RF receive diplexer receives a first adjunct RF antenna receive signal via the first isolation port to provide a first adjunct RF receive signal via the second main port. The first RF receive diplexer receives a first RF transmit signal via the first main port to provide a first RF antenna transmit signal via the first isolation port.

Abstract translation: 公开了一种第一RF接收双工器，其包括第一混合RF耦合器，第二混合RF耦合器和RF滤波器电路。 第一混合RF耦合器具有第​​一主端口，第一对正交端口和耦合到RF天线的第一隔离端口。 第二混合RF耦合器具有第​​二主端口和第二对正交端口。 RF滤波器电路耦合在第一对正交端口与第二对正交端口之间。 第一RF接收双工器经由第一隔离端口接收第一附加RF天线接收信号，以经由第二主端口提供第一附加RF接收信号。 第一RF接收双工器经由第一主端口接收第一RF发射信号，以经由第一隔离端口提供第一RF天线发射信号。

公开(公告)号：US09118376B2

公开(公告)日：2015-08-25

申请号：US13848393

申请日：2013-03-21

Applicant: RF Micro Devices, Inc.

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

IPC: H04B1/10 ,  H04L27/00 ,  H03H7/46 ,  H03H7/01

CPC classification number: H04B1/10 ,  H03H7/465 ,  H03H2007/013 ,  H03H2210/025 ,  H03H2210/033 ,  H03H2210/036 ,  H04L27/0002

Abstract: Radio frequency (RF) front end circuitry includes a notch diplexer. The notch diplexer includes a high pass filter coupled between a high band port and an antenna port, and a low pass notch filter coupled between a low band port and the antenna port. The high pass filter is adapted to receive a high band receive signal having a high band carrier frequency at the antenna port, and pass the high band receive signal to the high band port. The low pass notch filter is adapted to receive a low band transmit signal having a low band carrier frequency at the low band port, and attenuate distortion in the low band transmit signal about a notch stop band before passing the low band transmit signal to the antenna port. According to one embodiment, the notch stop band includes the high band carrier frequency.

Abstract translation: 射频（RF）前端电路包括一个切口双工器。 陷波分波器包括耦合在高频带端口和天线端口之间的高通滤波器以及耦合在低频带端口和天线端口之间的低通陷波滤波器。 高通滤波器适于在天线端口处接收具有高频带载波频率的高频带接收信号，并将高频带接收信号传送到高频带端口。 低通陷波滤波器适于在低频带端口接收具有低频带载波频率的低频带发射信号，并且在通过低频带发射信号到天线之前衰减低频带发射信号关于陷波阻挡带的失真 港口。 根据一个实施例，陷波阻挡带包括高频带载波频率。