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公开(公告)号：US20190245506A1
公开(公告)日：2019-08-08
申请号：US16390099
申请日：2019-04-22
发明人： Hiroshi Masuda
CPC分类号： H03H7/09 , H01F17/00 , H01F17/0013 , H01F27/00 , H01F2017/0026 , H03H7/1741 , H03H2001/0085
摘要： A multilayer body includes a first inductor and a second inductor provided in a first planar region, and a third inductor and a fourth inductor provided in a second planar region when viewed in a lamination direction of dielectric layers of the multilayer body. When the multilayer body is viewed in a direction perpendicular or substantially perpendicular to the lamination direction of the dielectric layers, the first inductor L1 and the fourth inductor are provided in a first thickness region, and the second inductor and the third inductor are provided in a second thickness region
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公开(公告)号：US20190245505A1
公开(公告)日：2019-08-08
申请号：US16386967
申请日：2019-04-17
发明人： Xiaoyang CHENG , Gang WEI , Haitao YU
IPC分类号： H03H7/09 , H01L21/67 , H01L21/683 , H05B6/36
CPC分类号： H03H7/09 , H01L21/67098 , H01L21/6833 , H02J3/01 , H02M3/335 , H02M7/5387 , H05B6/02 , H05B6/36
摘要： A filter circuit is connected between a heating source and a load for filtering the load, and includes an inductor branch and a capacitor branch connected in parallel. The inductor branch includes a one-piece structured integrated component, and the integrated component is configured with a transformer function member and an inductor function member. The inductor function member is connected in series between the heating source and the transformer function member for filtering the load. The transformer function member is connected in parallel with the load for transmitting a heating electric signal output by the heating source to the load.
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公开(公告)号：US20190238110A1
公开(公告)日：2019-08-01
申请号：US16258883
申请日：2019-01-28
发明人： Joel CONCORD
CPC分类号： H03H7/427 , H01P1/2007 , H01P1/203 , H01P1/20381 , H01P1/2039 , H03H7/09 , H03H7/17
摘要： A filtering circuit includes at least two common-mode filters that are electrically coupled in series and magnetically coupled. The first common-mode filter includes first and second spiral inductors that are positively magnetically coupled and electrically isolated from each other. The second common-mode filter includes third and fourth spiral inductors that are positively magnetically coupled and electrically isolated from each other. The first and third spiral inductors are electrically connected in series and negatively magnetically coupled. Likewise, the second and fourth spiral inductors are electrically connected in series and negatively magnetically coupled.
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公开(公告)号：US20190068166A1
公开(公告)日：2019-02-28
申请号：US16179004
申请日：2018-11-02
发明人： Kenichi ISHIZUKA
CPC分类号： H03H9/72 , H03H7/09 , H03H7/1758 , H03H7/1775 , H03H7/21 , H03H9/6416 , H03H9/6489 , H03H9/725 , H03H2001/0085 , H04B1/40 , H04B1/405
摘要： A phase shifter module includes a base material, a common terminal, and individual terminals, the common terminal and the individual terminals being provided at the base material. Inside the base material, phase shifters that are connected between the individual terminals and the common terminal, respectively, are provided. The phase shifters each include a primary coil and a secondary coil that is coupled to the primary coil by magnetic field coupling and define a transformer phase shifter. With this configuration, a phase shifter module for use with SAW filters while reducing or preventing interference among the SAW filters, a multiplexer/demultiplexer that includes the phase shifter module, and a communication apparatus that includes the phase shifter module, are obtained.
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公开(公告)号：US20180367115A1
公开(公告)日：2018-12-20
申请号：US16062043
申请日：2017-06-15
CPC分类号： H03H7/427 , H01F17/0013 , H01F17/04 , H01F27/292 , H01F2017/004 , H01F2017/0066 , H01F2017/0093 , H03H7/09 , H03H2001/0035 , H03H2001/0057 , H03H2001/0078 , H03H2001/0085
摘要： A common mode noise filter includes a laminated body having insulator layers therein and first and second spiral conductors provided on layer planes different from each other. The first spiral conductor includes a first spiral conductor line, a first pad provided at an outer end of the first spiral conductor line, and a second pad provided at an inner end of the first spiral conductor line. The second spiral conductor includes a second spiral conductor line, a third pad provided at an outer end of the second spiral conductor line, and a fourth pad provided at an inner end of the second spiral conductor line. The first spiral conductor line faces the second spiral conductor line. Each of the second pad and the sixth pad overlaps none of the fourth pad and the eighth pad viewing from above.
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公开(公告)号：US20180316321A1
公开(公告)日：2018-11-01
申请号：US15961299
申请日：2018-04-24
申请人： Qorvo US, Inc.
CPC分类号： H03F3/193 , H03F1/56 , H03F1/565 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/165 , H03F2200/222 , H03F2200/267 , H03F2200/294 , H03F2200/391 , H03F2200/451 , H03F2203/7209 , H03H7/09 , H03H7/1775 , H03H7/38 , H03H2210/012 , H03H2210/025 , H03H2210/04 , H03J3/06 , H03J5/242 , H04B1/04
摘要： RF communications circuitry, which includes a first tunable RF filter and a first RF low noise amplifier (LNA) is disclosed. The first tunable RF filter includes a pair of weakly coupled resonators, and receives and filters a first upstream RF signal to provide a first filtered RF signal. The first RF LNA is coupled to the first tunable RF filter, and receives and amplifies an RF input signal to provide an RF output signal.
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7.发明申请公开(公告)号：US20180254755A1
公开(公告)日：2018-09-06
申请号：US15972917
申请日：2018-05-07
申请人： Qorvo US, Inc.
IPC分类号： H03F1/32 , H03H7/01 , H03H7/09 , H03F3/213 , H03F3/21 , H03F3/195 , H01F27/28 , H03F3/19 , H01F27/38 , H03F1/22 , H03F1/34
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： Radio frequency (RF) filters configured to filter undesired signal components (e.g., noise and harmonics) from RF signals are disclosed. In one embodiment, an RF filter includes a first inductor coil having a first winding and a second inductor coil having a second winding and a third winding. The second winding of the second inductor coil is configured to have a first mutual magnetic coupling with the first winding, while the third winding of the second inductor coil is configured to have a second mutual magnetic coupling with the first winding. The second winding is connected to the third winding such that the first mutual magnetic coupling and the second mutual magnetic coupling are in opposition. In this manner, the first inductor coil and the second inductor coil may be provided in a compact arrangement while providing weak mutual magnetic coupling between the first inductor coil and the second inductor coil.
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公开(公告)号：US10003316B2
公开(公告)日：2018-06-19
申请号：US15444397
申请日：2017-02-28
发明人： Dominique Oswald
CPC分类号： H03H1/0007 , H01F27/24 , H01F27/2823 , H02M1/126 , H02M1/44 , H02M2001/123 , H03H7/0115 , H03H7/06 , H03H7/09 , H03H7/427
摘要： A device that filters electromagnetic interference includes electrical conductors mounted in parallel. Each conductor includes a first coil positioned between a first and a second end of the respective conductor. Each first coil is coupled magnetically to each other first coil and has the same number of turns as each other first coil. The first and second ends of each of the conductors, respectively, are first and second terminals for the device. The device includes capacitors. Each capacitor is mounted between the second end of a corresponding electrical conductor and a third terminal of the device. The device includes an additional circuit. The additional circuit includes a second coil coupled magnetically with the first coils of the conductors. The additional circuit includes an additional coil. The second coil has a second number of turns.
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公开(公告)号：US09948356B2
公开(公告)日：2018-04-17
申请号：US15555342
申请日：2016-03-23
发明人： François Guillot
CPC分类号： H04B3/56 , H01F38/14 , H03H7/0138 , H03H7/09 , H04B3/542 , H04B2203/5416 , H04B2203/5429 , H04L25/0266 , H04L25/0276
摘要： An electrical coupler includes: a sending transformer having a winding for receiving data signals and two windings connected in series with a common point and two terminals to be connected to a first wires pair of a bus to deliver the data signals at the first winding terminals to said wire pair; a receiving transformer having two windings connected in series with a common point and two terminals to be connected to a second pair of wires of said bus to receive data signals on the pair of wires and a winding for delivering said data signals; and a galvanic isolation transformer with a first winding, the terminals of which are connected to the coupler's power supply pins, and second and third windings connected in series with a common point connected to a mechanical ground and the respective free terminals connected to the common terminals of sending and receiving transformers.
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公开(公告)号：US09935603B2
公开(公告)日：2018-04-03
申请号：US15413563
申请日：2017-01-24
发明人： Mitsutoshi Imamura
IPC分类号： H03H7/09 , H01F27/28 , H01F27/29 , H03H1/00 , H03H7/01 , H01F17/00 , H01G4/12 , H01G4/228 , H01G4/30 , H01G4/40 , H01G4/012
CPC分类号： H03H7/09 , H01F17/0013 , H01F27/2804 , H01F27/29 , H01F2017/0026 , H01F2027/2809 , H01G4/012 , H01G4/12 , H01G4/228 , H01G4/30 , H01G4/40 , H03H1/00 , H03H7/0115 , H03H2001/0085
摘要： In a laminated LC filter, at least four LC parallel resonators are provided inside a multilayer body. At least a pair of loops of inductors in odd numbered-stage LC parallel resonators among the at least four LC parallel resonators are disposed at an angle at which magnetic coupling is obtained therebetween, and winding directions thereof are the same, so as to obtain magnetic coupling between the inductors. In addition, magnetic coupling may also be obtained between a pair of loops of inductors in even numbered-staged LC parallel resonators among the at least four LC parallel resonators.
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