公开(公告)号：US20240072754A1

公开(公告)日：2024-02-29

申请号：US18456835

申请日：2023-08-28

Applicant: TDK CORPORATION

Inventor： Masahiro TATEMATSU ,  Yuta ASHIDA ,  Shuhei SAWAGUCHI ,  Keigo SHIBUYA ,  Tomonori TERUI ,  Tetsuzo GOTO

IPC: H03H7/01

CPC classification number: H03H7/1775 ,  H03H7/0115 ,  H03H2001/0085

Abstract: In a multilayer filter, first and second resonant circuits are arranged in a direction crossing a stacking direction of a plurality of dielectric layers. An input/output portion includes an input/output port group including an unbalanced port and a pair of balanced ports or an input/output port group including two pairs of balanced ports. The second resonant circuit includes an inductor conductor, a first capacitor conductor, and a second capacitor conductor. The inductor conductor includes first and second ends. The first capacitor conductor is connected to the first end. The second capacitor conductor is connected to the second end. The second dielectric layer has a dielectric constant lower than that of the first dielectric layer. The first and second capacitor conductors are provided in the first dielectric layer. At least a part of the inductor conductor is provided in the second dielectric layer.

公开(公告)号：US20230307810A1

公开(公告)日：2023-09-28

申请号：US18189417

申请日：2023-03-24

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Masahiro TATEMATSU ,  Shuhei SAWAGUCHI ,  Kenichi TEZUKA ,  Aozora KAWASAKI ,  Tetsuzo GOTO ,  Tomoyuki GOI

IPC: H01P1/20

CPC classification number: H01P1/20 ,  H01P7/06

Abstract: A filter includes a first port, a second port, a path, a circuit part, and at least one cavity resonator. The path connects the first port and the second port. The circuit part is provided in the path. Each of the at least one cavity resonator is coupled with the path from an outside of the path in a circuit configuration. The first cavity resonator is coupled with the path between the first port and the circuit part. The second cavity resonator is coupled with the path between the second port and the circuit part.

公开(公告)号：US20240186702A1

公开(公告)日：2024-06-06

申请号：US18528081

申请日：2023-12-04

Applicant: TDK Corporation

Inventor： Tetsuzo GOTO

IPC: H01Q9/04 ,  H01Q5/50

CPC classification number: H01Q9/0414 ,  H01Q5/50

Abstract: Disclosed herein is an antenna device that includes a substrate, a ground pattern provided on a surface of the substrate, an antenna element mounted on the surface of the substrate, and first and second conductor patterns provided in a ground clearance area free from the ground pattern on the surface of the substrate. The first conductor pattern extends in a first direction, and the second conductor pattern extends in a direction different from the first direction. One end of the first conductor pattern is connected to the antenna element, and another end of the first conductor pattern is connected to a connection point positioned between both ends of the second conductor pattern.

公开(公告)号：US20180123215A1

公开(公告)日：2018-05-03

申请号：US15787061

申请日：2017-10-18

Applicant: TDK Corporation

Inventor： Tetsuzo GOTO

IPC: H01P5/18

CPC classification number: H01P5/184 ,  H01P5/187

Abstract: The element body includes a main line; a first sub line and a second sub line; a pair of ground layers that are disposed to face each other at positions at which the main line, the first sub line, and the second sub line are interposed in a stacking direction of the plurality of insulator layers; a phase control circuit that is connected between the first sub line and the second sub line and is disposed at a position at which one ground layer is interposed between the first sub line and the second sub line in the stacking direction; and a connection line that connects the first sub line and the second sub line to the phase control circuit. The connection line is surrounded by at least one of one ground layer and a conductor having the same potential as the ground layer when viewed in the stacking direction.

公开(公告)号：US20230246621A1

公开(公告)日：2023-08-03

申请号：US18161286

申请日：2023-01-30

Applicant: TDK CORPORATION

Inventor： Shuhei SAWAGUCHI ,  Masahiro TATEMATSU ,  Yuta ASHIDA ,  Tetsuzo GOTO ,  Yoshinori MATSUMARU ,  Shigemitsu TOMAKI ,  Longfei YI

IPC: H03H7/01 ,  H01F27/28 ,  H01F27/29 ,  H01F27/40 ,  H01G4/30 ,  H01G4/01

CPC classification number: H03H7/0115 ,  H03H7/0161 ,  H01F27/2804 ,  H01F27/29 ,  H01F27/40 ,  H01G4/30 ,  H01G4/01 ,  H01F2027/2809

Abstract: A filter circuit includes a pair of balanced input ports, a pair of balanced output ports, and first and second resonators provided in parallel between the pair of balanced input ports and the pair of balanced output ports in a circuit configuration, the first and second resonators being magnetically coupled to each other. Between the first resonator and the second resonator, a capacitor is present but no inductor is present in the circuit configuration.

公开(公告)号：US20210242852A1

公开(公告)日：2021-08-05

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

IPC: H03H7/42 ,  H01G4/30

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.

公开(公告)号：US20170214109A1

公开(公告)日：2017-07-27

申请号：US15367578

申请日：2016-12-02

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Noriaki OOTSUKA ,  Takeshi KIJIMA ,  Yasunori SAKISAKA ,  Tetsuzo GOTO

IPC: H01P5/18 ,  H03H7/18

CPC classification number: H01P5/18 ,  H01P5/187 ,  H03H7/185

Abstract: A directional coupler includes a first to a fourth port, a main line connecting the first port and the second port, a first and a second subline section configured to be electromagnetically coupled to the main line, and a phase shifter. The first subline section, the phase shifter, and the second subline section are arranged in this order in series between the third port and the fourth port. The phase shifter outputs a signal that is phase-delayed relative to an input signal. The phase delay amount of the output signal of the phase shifter relative to the input signal increases with increasing frequency of the input signal. A frequency twice as high as the frequency of the input signal at which the phase delay amount is 90 degrees is lower than the frequency of the input signal at which the phase delay amount is 180 degrees.

公开(公告)号：US20230253945A1

公开(公告)日：2023-08-10

申请号：US18162155

申请日：2023-01-31

Applicant: TDK CORPORATION

Inventor： Masahiro TATEMATSU ,  Shuhei SAWAGUCHI ,  Yuta ASHIDA ,  Tetsuzo GOTO ,  Yoshinori MATSUMARU ,  Shigemitsu TOMAKI ,  Longfei YI

IPC: H03H7/01 ,  H01F27/28 ,  H01F27/29 ,  H01G4/30 ,  H01G4/012

CPC classification number: H03H7/0115 ,  H03H7/0161 ,  H01F27/2804 ,  H01F27/292 ,  H01G4/30 ,  H01G4/012 ,  H01F2027/2809

Abstract: A filter circuit includes a pair of balanced input ports, a pair of balanced output ports, first and second resonators provided in parallel between the pair of balanced input ports and the pair of balanced output ports in a circuit configuration, a first capacitor connected in parallel to the first resonator, and a second capacitor connected in parallel to the second resonator. The first and second resonators are magnetically coupled to each other and electrically connected to each other. The first and second capacitors are not electrically connected to ground.

公开(公告)号：US20170040661A1

公开(公告)日：2017-02-09

申请号：US15206614

申请日：2016-07-11

Applicant: TDK CORPORATION

Inventor： Yuta ASHIDA ,  Yasunori SAKISAKA ,  Noriaki OOTSUKA ,  Tetsuzo GOTO ,  Takeshi KIJIMA

IPC: H01P5/18 ,  H03H7/01

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 portions that overlap each other when viewed in the stacking direction of the stack.

Abstract translation: 定向耦合器包括：第一至第四端口; 连接第一和第二端口的主线; 电磁耦合到主线的第一至第四子线段; 第一到第三匹配部分; 和堆栈。 在第三和第四端口之间按顺序排列第一子线，第一匹配，第三子线，第三匹配，第四子线，第二匹配和第二子线部分。 第一和第二匹配部分包括连接位于匹配部分的相对侧上的两个子线部分的电感器。 用于形成电感器的一个或多个导体层中的每一个包括用于电连接到相应的其它元件的两个连接部分和连接两个连接部分的线路部分。 除了连接部分之外的电感器不包括当从堆叠的层叠方向观察时彼此重叠的部分。

公开(公告)号：US20160181698A1

公开(公告)日：2016-06-23

申请号：US14963105

申请日：2015-12-08

Applicant: TDK Corporation

Inventor： Tetsuzo GOTO

IPC: H01Q7/00 ,  H01Q1/36

CPC classification number: H01Q1/362 ,  H01Q1/243 ,  H01Q5/35

Abstract: An antenna element is provided with a substrate made of a dielectric body, first to third terminal electrodes formed on a bottom surface of the substrate, a helical coil pattern that is formed in the inside of the substrate, a first lead pattern connected to one end of the helical coil pattern or near the one end, a second lead pattern connected to the other end of the helical coil pattern or near the other end, a first through-hole conductor that connects the first terminal electrode and the first lead pattern, a second through-hole conductor that connects the second terminal electrode and the second lead pattern, and a third through-hole conductor that connects the third terminal electrode and the one end of the helical coil pattern.

Abstract translation: 天线元件设置有由电介质体构成的基板，形成在基板的底面上的第一至第三端子电极，形成在基板内部的螺旋线圈图案，与一端连接的第一引线图案 的螺旋线圈图案或靠近一端的第二引线图案，连接到螺旋线圈图案的另一端或另一端附近的第二引线图案，连接第一端子电极和第一引线图案的第一通孔导体， 连接第二端子电极和第二引线图案的第二通孔导体，以及连接第三端子电极和螺旋线圈​​图案的一端的第三通孔导体。