-
公开(公告)号：US11757424B2
公开(公告)日：2023-09-12
申请号：US17686071
申请日：2022-03-03
Applicant: TDK CORPORATION
Inventor： Takuya Sato , Yuta Ashida
CPC classification number: H03H7/0161 , H03H7/0115 , H03H7/075 , H03H7/1741 , H03H2001/0085
Abstract: A band-pass filter includes a first input/output port, a second input/output port, a first high-pass filter, a first low-pass filter, and a first stub resonator. The first stub resonator includes a first distributed constant line. The first low-pass filter is provided between the first input/output port and the first high-pass filter in the circuit configuration. The first distributed constant line has a first end connected to a first path connecting the first input/output port and the first low-pass filter, and a second end closest to a ground in the circuit configuration.
-
公开(公告)号：US11081767B2
公开(公告)日：2021-08-03
申请号：US16816929
申请日：2020-03-12
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Noriyuki Hirabayashi , Shigemitsu Tomaki
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：US10950917B2
公开(公告)日：2021-03-16
申请号：US16351609
申请日：2019-03-13
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Noriyuki Hirabayashi , Shigemitsu Tomaki
Abstract: A dielectric filter includes a plurality of dielectric resonators. The dielectric filter further includes a plurality of resonator bodies corresponding to the plurality of dielectric resonators, and a peripheral dielectric portion lying around the plurality of resonator bodies. Each of the plurality of resonator bodies is formed of a first dielectric having a first relative permittivity. The peripheral dielectric portion is formed of a second dielectric having a second relative permittivity lower than the first relative permittivity. Each of the plurality of resonator bodies includes a plurality of individual elements separated from each other.
-
公开(公告)号：US10658737B2
公开(公告)日：2020-05-19
申请号：US16103123
申请日：2018-08-14
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Yasuyuki Hara , Toshiki Tate
IPC: H01Q9/04 , H01Q1/36 , H01P1/20 , H01P3/18 , H01Q1/48 , H01P1/203 , H01P5/107 , H01Q21/06 , H01Q1/52
Abstract: A composite electronic component includes a multilayer stack, a filter, and an antenna. The filter is located within the multilayer stack and interposed between a first ground conductor layer and a second ground conductor layer. The antenna includes a radiation element. The radiation element is located on a side of the second ground conductor layer opposite from the first ground conductor layer. When viewed in a direction parallel to the stacking direction of the multilayer stack, the radiation element entirely lies inside the perimeter of the second ground conductor layer. The multilayer stack includes a plurality of connection conductor sections arranged around the filter and connecting the first ground conductor layer and the second ground conductor layer.
-
公开(公告)号：US10381700B2
公开(公告)日：2019-08-13
申请号：US15620053
申请日：2017-06-12
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Kazunari Kimura , Shigemitsu Tomaki
Abstract: A dielectric filter includes: a resonator body formed of dielectric material; surrounding dielectric portion present around the resonator body and formed of dielectric material having a relative permittivity lower than the dielectric material used to form the resonator body; and an input/output conductor portion formed of a conductor and configured to perform at least one supply of an electromagnetic wave to the resonator body and reception of an electromagnetic wave from the resonator body. The resonator body has a first end face and a second end face located at opposite ends in a first direction. The input/output conductor portion is located either at least part of the input/output conductor portion is contained in a space formed by shifting a virtual plane corresponding to the first end face in the first direction away from the second end face, or the input/output conductor portion is in contact with the space.
-
Patent Agency Ranking
公开(公告)号：US11955681B2
公开(公告)日：2024-04-09
申请号：US17556559
申请日：2021-12-20
Applicant: TDK CORPORATION
Inventor： Honoka Atsuchi , Yuta Ashida , Longfei Yi , Yoshinori Matsumaru , Shuhei Sawaguchi , Masahiro Tatematsu , Shigemitsu Tomaki
IPC: H01P1/20
CPC classification number: H01P1/20
Abstract: A band-pass filter includes a first input/output port, a second input/output port, a plurality of resonators, and a multilayer stack. The multilayer stack includes a plurality of stacked dielectric layers. Each of the resonators is an open-ended resonator formed of a conductor line in the multilayer stack. Each of the resonators includes a resonator conductor portion including a first line part and a second line part located away from each other in a direction orthogonal to a stacking direction of the plurality of dielectric layers, and a third line part connecting the first line part and the second line part. The first to third line parts extend to surround a space between the first line part and the second line part.
-
公开(公告)号：US11283147B2
公开(公告)日：2022-03-22
申请号：US17155789
申请日：2021-01-22
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Masahiro Tatematsu , Shuhei Sawaguchi , Shigemitsu Tomaki
IPC: H01P5/18
Abstract: A directional coupler includes first to fourth terminals, a first line, a second line, a ground conductor portion, and a stack. The first line includes a first center portion, a first connecting portion, and a second connecting portion. The second line includes a second center portion, a third connecting portion, and a fourth connecting portion. A distance between the first and third connecting portions and a distance between the second and fourth connecting portions decrease toward the first and second center portions. The first to fourth terminals are located on a bottom surface of the stack.
-
公开(公告)号：US10432165B2
公开(公告)日：2019-10-01
申请号：US15842226
申请日：2017-12-14
Applicant: TDK CORPORATION
Inventor： Hiroya Suzuki , Noriaki Ootsuka , Yuta Ashida
Abstract: Provided is a balanced/unbalanced converter (1) that includes a first strip line (40), a second strip line (41), a third strip line (42), a fourth strip line (43), an unbalanced terminal (4), and an open terminal (7). The first strip line (40) includes a spiral first conductor (19), and the second strip line (41) includes a spiral second conductor (14). An outer circumferential end (19b) of the first conductor (19) is electrically connected to the unbalanced terminal (4), and an outer circumferential end (14a) of the second conductor (14) is electrically connected to the open terminal (7).
-
公开(公告)号：US11522259B2
公开(公告)日：2022-12-06
申请号：US17362140
申请日：2021-06-29
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Noriyuki Hirabayashi , Shigemitsu Tomaki
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：US11476822B2
公开(公告)日：2022-10-18
申请号：US17242053
申请日：2021-04-27
Applicant: TDK CORPORATION
Inventor： Shuhei Sawaguchi , Yuta Ashida , Masahiro Tatematsu , Yoshinori Matsumaru , Shigemitsu Tomaki
Abstract: A band-pass filter includes an unbalanced port, a first balanced port, a second balanced port, and first to third resonators provided between the unbalanced port and the first and second balanced ports. The second resonator and the third resonator each are a resonator with both ends open. The second resonator and the third resonator are adjacent to each other in a circuit configuration, and electromagnetically coupled by magnetic coupling as main coupling. The first resonator is provided closer to the second resonator than to the third resonator, and jump-coupled to the third resonator.
-
-
-
-
-
-
-
-
-
Search Results
27
records
(took 0.012 seconds)
