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公开(公告)号：US11056793B2
公开(公告)日：2021-07-06
申请号：US16688649
申请日：2019-11-19
Applicant: TDK Corporation
Inventor： Yasuyuki Hara , Yuta Ashida
Abstract: Disclosed herein is an antenna module that includes a circuit layer having a filter circuit, an antenna layer having a radiation conductor, a wiring layer having a connection wiring, a first ground pattern provided on a surface of the circuit layer, a second ground pattern provided between the circuit layer and the wiring layer, a third ground pattern provided between the wiring layer and the antenna layer, and a signal terminal provided on the surface of the circuit layer where the first ground pattern is cut away. The clearance region is located so as not to overlap the filter circuit as viewed in a lamination direction. The signal terminal is connected to the filter circuit through a pillar conductor penetrating the circuit layer and the connection wiring. The radiation conductor receives power through a feed pattern connected to the filter circuit.
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公开(公告)号：US10727557B2
公开(公告)日：2020-07-28
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
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.
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公开(公告)号：US10658720B2
公开(公告)日：2020-05-19
申请号：US15980206
申请日：2018-05-15
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Noriyuki Hirabayashi , Shigemitsu Tomaki
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.
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公开(公告)号：US09893408B2
公开(公告)日：2018-02-13
申请号：US15206614
申请日：2016-07-11
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Yasunori Sakisaka , Noriaki Ootsuka , Tetsuzo Goto , Takeshi Kijima
CPC classification number: H01P5/18 , H01P5/187 , H03H7/0115 , H03H2001/0078
Abstract: A directional coupler includes: a first to a fourth port; a main line connecting the first and second ports; a first to a fourth subline section electromagnetically coupled to the main line; a first to a third matching section; and a stack. The first subline, first matching, third subline, third matching, fourth subline, second matching, and second subline sections are arranged in this order between the third and fourth port. The first and second matching sections include an inductor connecting two subline sections located on opposite sides of the matching section. Each of one or more conductor layers used to form the inductor includes two connection portions for electrical connection to respective other elements, and a line portion connecting the two connection portions. The inductor excluding the connection portions does not include potions that overlap each other when viewed in the stacking direction of the stack.
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公开(公告)号：US11769942B2
公开(公告)日：2023-09-26
申请号：US18051946
申请日：2022-11-02
Applicant: TDK Corporation
Inventor： Yasuyuki Hara , Yutaka Ui , Yuta Ashida
CPC classification number: H01Q1/422 , H01Q1/2283 , H01Q1/38 , H01Q5/371 , H01Q15/0026
Abstract: Disclosed herein is an antenna device that includes a filter layer, an antenna layer, a divider layer, and ground patterns. The antenna layer has first and second radiation conductors and first and second ground pillars that surround the first and second radiation conductors, respectively. Each of the first and second ground patterns has a first area that overlaps a first space surrounded by the first ground pillars, a second area that overlaps a second space surrounded by the plurality of second ground pillars, and a third area that connects the first and second areas. A width of the third area in a width direction perpendicular to an arrangement direction of the first and second areas is smaller than a width of each of the first and second areas in the width direction.
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Patent Agency Ranking
公开(公告)号：US11522281B2
公开(公告)日：2022-12-06
申请号：US17343293
申请日：2021-06-09
Applicant: TDK Corporation
Inventor： Yasuyuki Hara , Yutaka Ui , Yuta Ashida
Abstract: Disclosed herein is an antenna device that includes a filter layer, an antenna layer, a divider layer, and ground patterns. The antenna layer has first and second radiation conductors and first and second ground pillars that surround the first and second radiation conductors, respectively. Each of the first and second ground patterns has a first area that overlaps a first space surrounded by the first ground pillars, a second area that overlaps a second space surrounded by the plurality of second ground pillars, and a third area that connects the first and second areas. A width of the third area in a width direction perpendicular to an arrangement direction of the first and second areas is smaller than a width of each of the first and second areas in the width direction.
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公开(公告)号：US11431071B2
公开(公告)日：2022-08-30
申请号：US17160559
申请日：2021-01-28
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Masahiro Tatematsu , Shuhei Sawaguchi , Shigemitsu Tomaki , Tetsuzo Goto , Takeshi Kijima
Abstract: A balun includes first to fourth lines and a stack. A plurality of first conductor layers forming the first and third lines are located in a first region in the stack. A plurality of second conductor layers forming the second and fourth lines are located in a second region in the stack. A ground conductor layer is located closer to the second region than to the first region. The plurality of second conductor layers include a conductor layer pair where a distance between two conductor layers is smallest.
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公开(公告)号：US10957959B2
公开(公告)日：2021-03-23
申请号：US16552015
申请日：2019-08-27
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Noriyuki Hirabayashi , Shigemitsu Tomaki
Abstract: A band-pass filter includes first to sixth stage resonators. Each resonator includes a resonator conductor portion formed of a conductor line. The resonator conductor portion has a first end and a second end which are opposite ends of the conductor line. The resonator conductor portion of each of the first and sixth stage resonators includes a narrow portion, a first wide portion located between the narrow portion and the first end, and a second wide portion located between the narrow portion and the second end. Each of the first and sixth stage resonators is lower in unloaded Q than the other resonators.
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公开(公告)号：US10854939B2
公开(公告)日：2020-12-01
申请号：US16223272
申请日：2018-12-18
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Noriyuki Hirabayashi , Shigemitsu Tomaki
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.
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公开(公告)号：US10432161B2
公开(公告)日：2019-10-01
申请号：US15877534
申请日：2018-01-23
Applicant: TDK CORPORATION
Inventor： Yuta Ashida , Naoki Sotoma , Shigemitsu Tomaki , Yasuyuki Hiwatashi
Abstract: A band-pass filter includes a main body formed of a dielectric, a plurality of resonators, a shield, and a partition formed of a conductor. Each of the plurality of resonators includes a resonator conductor portion. The resonator conductor portion has a first end and a second end opposite to each other in the longitudinal direction. The first end is connected to a ground, and the second end is open. The partition extends to pass through between the respective resonator conductor portions of two resonators, and is electrically connected to the shield.
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