公开(公告)号：US20200303798A1

公开(公告)日：2020-09-24

申请号：US16816929

申请日：2020-03-12

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Noriyuki HIRABAYASHI ,  Shigemitsu TOMAKI

IPC: H01P1/205 ,  H03H7/01 ,  H01P1/203

Abstract: A multilayered filter device includes a multilayer stack, a band pass filter, a first band elimination filter, and a second band elimination filter. The band pass filter and the first and second band elimination filters are each constructed using the multilayer stack. The band pass filter includes a plurality of first resonators with open ends. Each band elimination filter includes a connection path, and a second resonator coupled to the connection path. The connection path includes an impedance transformer. The second resonator includes a conductor line constituting a distributed constant line.

公开(公告)号：US20190252753A1

公开(公告)日：2019-08-15

申请号：US16227558

申请日：2018-12-20

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Shigemitsu TOMAKI ,  Yousuke FUTAMATA ,  Shin TAKANE ,  Yasuharu MIYAUCHI ,  Kazunari KIMURA

IPC: H01P1/20 ,  H01P1/30 ,  H01P7/10 ,  H01P11/00

Abstract: A dielectric filter includes a plurality of dielectric resonators. The dielectric filter also includes: a plurality of resonator body portions each formed of a first dielectric and respectively corresponding to the plurality of dielectric resonators, the first dielectric having a first relative permittivity; a peripheral dielectric portion formed of a second dielectric and lying around the plurality of resonator body portions, the second dielectric having a second relative permittivity lower than the first relative permittivity; and a shield portion formed of a conductor. Either one of a temperature coefficient of resonant frequency of the first dielectric at 25° C. to 85° C. and a temperature coefficient of resonant frequency of the second dielectric at 25° C. to 85° C. has a positive value and the other has a negative value.

公开(公告)号：US20190237838A1

公开(公告)日：2019-08-01

申请号：US16223272

申请日：2018-12-18

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Noriyuki HIRABAYASHI ,  Shigemitsu TOMAKI

IPC: H01P1/20 ,  H01P1/18 ,  H01P7/10 ,  H01P11/00

CPC classification number: H01P1/2002 ,  H01P1/182 ,  H01P7/10 ,  H01P11/007

Abstract: A dielectric filter has a first input/output port, a second input/output port, an even number of dielectric resonators, and a capacitor for capacitively coupling the first input/output port and the second input/output port. The even number of dielectric resonators are provided between the first input/output port and the second input/output port in circuit configuration, and are configured so that two dielectric resonators adjacent to each other in circuit configuration are magnetically coupled to each other.

公开(公告)号：US20190007018A1

公开(公告)日：2019-01-03

申请号：US15980206

申请日：2018-05-15

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Noriyuki HIRABAYASHI ,  Shigemitsu TOMAKI

IPC: H03H7/01 ,  H03H1/00 ,  H03H7/38

Abstract: A multilayer electronic component includes a multilayer stack, and a band elimination filter formed using the multilayer stack. The band elimination filter includes a first input/output end, a second input/output end, a connection path connecting the first and second input/output ends, and a resonator coupled to the connection path. The connection path includes an impedance transformer. The resonator includes a first conductor line constituting a first distributed constant line. The impedance transformer includes a second conductor line constituting a second distributed constant line, and a through hole line section connected in series to the second conductor line.

公开(公告)号：US20160013535A1

公开(公告)日：2016-01-14

申请号：US14789261

申请日：2015-07-01

Applicant: TDK CORPORATION

Inventor： Takashi FUKUI ,  Kiyoshi HATANAKA ,  Toshio SAKURAI ,  Shigemitsu TOMAKI

IPC: H01P7/00 ,  H01P7/04

CPC classification number: H01P7/10

Abstract: A transmission line is provided with a line portion with a first relative permittivity which is composed of a first dielectric and a conductor filler dispersed in the first dielectric, and a surrounding dielectric portion composed of a second dielectric with a second relative permittivity, wherein, the surrounding dielectric portion exists around the line portion in a cross section perpendicular to a direction in which electromagnetic waves transmit in the line portion, the first relative permittivity is 600 or more, and the second relative permittivity is smaller than the first relative permittivity. An electronic component has the transmission line. Further, an electronic component is provided with a resonator having a resonant frequency ranging from 1 GHz to 10 GHz, wherein, the resonator is formed by using the transmission line.

Abstract translation: 传输线设置有具有第一相对介电常数的线部分，其由分散在第一电介质中的第一电介质和导体填料构成，以及由具有第二相对介电常数的第二电介质组成的周围电介质部分，其中， 在与线电极部分的电磁波传播方向正交的截面中，线状部分周围存在着周围的电介质部分，第一相对介电常数为600以上，第2相对介电常数小于第1相对介电常数。 电子部件具有传输线。 此外，电子部件设置有共振频率范围为1GHz至10GHz的谐振器，其中，通过使用传输线形成谐振器。