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1.发明授权公开(公告)号：US12119799B1
公开(公告)日：2024-10-15
申请号：US17523300
申请日：2021-11-10
发明人： Hanseung Lee
CPC分类号： H03H7/0115 , H03H7/0153 , H03H7/18 , H03H7/345
摘要： A filter comprising a linear array of a plurality of TL-inspired T-networks connected in series by capacitors, each TL-inspired T-network typically comprising a pair of conventional transmission lines connected in series with a circuit comprising pair of inductors and a single capacitor, the conventional transmission lines associated with each TL-inspired T-network being optionally combinable together or with conventional transmission lines in neighboring TL-inspired T-networks, wherein the circuit comprising a pair of inductors and a single capacitor is an artificial transmission line providing target characteristic impedance, which is same as that of the conventional transmission lines, and phase delay.
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公开(公告)号：US11961651B2
公开(公告)日：2024-04-16
申请号：US17368903
申请日：2021-07-07
发明人： Kentaro Mikawa , Hideaki Kobayashi
CPC分类号： H01F27/2804 , H01F27/29 , H03H7/18 , H04B1/40 , H01F2027/2809
摘要： In a coil device, a first coil includes a common terminal side first coil conductor connected to a ground terminal, an intermediate first coil conductor, and an input/output terminal side first coil conductor connected to a first input/output terminal, and a second coil includes a common terminal side second coil conductor connected to the ground terminal, an intermediate second coil conductor, and an input/output terminal side second coil conductor connected to a second input/output terminal. The input/output terminal side first coil conductor is located between the intermediate second coil conductor and the input/output terminal side second coil conductor, and the input/output terminal side second coil conductor is located between the intermediate first coil conductor and the input/output terminal side first coil conductor.
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公开(公告)号：US11699982B2
公开(公告)日：2023-07-11
申请号：US17548926
申请日：2021-12-13
发明人： JianMin Wang , Hui Sheng Zhang
IPC分类号： H03H7/18
CPC分类号： H03H7/18
摘要： The present disclosure is directed to a coil unit decoupling apparatus and a magnetic resonance system. The apparatus is connected to a first coil unit and a second coil unit in a magnetic resonance system, and is configured to separate, by using a distribution characteristic of a spatial quadrature field between the first coil unit and the second coil unit, a Helmholtz signal and an anti-Helmholtz signal from signals received from the first coil unit and the second coil unit, so as to implement decoupling between the first coil unit and the second coil unit. This facilitates the complexity of decoupling coil units being reduced.
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公开(公告)号：US11411544B2
公开(公告)日：2022-08-09
申请号：US17258800
申请日：2020-03-24
摘要： The present disclosure provides a phase shifter including: a first substrate and a second substrate. The first substrate includes a reference electrode and a signal electrode, and the signal electrode includes a main structure and multiple branch structures. The second substrate includes multiple patch electrodes, and the multiple patch electrodes are arranged in a one-to-one correspondence with the multiple branch structures to form multiple variable capacitors. The phase shifter has a first region, and a second region and a third region which are respectively provided on two sides of the first region; and for any two of variable capacitors located on a same side of the first region, an overlap area of patch electrode and branch structure of a variable capacitor close to the first region is greater than or equal to that of a variable capacitor away from the first region.
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公开(公告)号：US20220140800A1
公开(公告)日：2022-05-05
申请号：US17258800
申请日：2020-03-24
摘要： The present disclosure provides a phase shifter including: a first substrate and a second substrate. The first substrate includes a reference electrode and a signal electrode, and the signal electrode includes a main structure and multiple branch structures. The second substrate includes multiple patch electrodes, and the multiple patch electrodes are arranged in a one-to-one correspondence with the multiple branch structures to form multiple variable capacitors. The phase shifter has a first region, and a second region and a third region which are respectively provided on two sides of the first region; and for any two of variable capacitors located on a same side of the first region, an overlap area of patch electrode and branch structure of a variable capacitor close to the first region is greater than or equal to that of a variable capacitor away from the first region.
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公开(公告)号：US20210335533A1
公开(公告)日：2021-10-28
申请号：US17368903
申请日：2021-07-07
发明人： Kentaro MIKAWA , Hideaki KOBAYASHI
摘要： In a coil device, a first coil includes a common terminal side first coil conductor connected to a ground terminal, an intermediate first coil conductor, and an input/output terminal side first coil conductor connected to a first input/output terminal, and a second coil includes a common terminal side second coil conductor connected to the ground terminal, an intermediate second coil conductor, and an input/output terminal side second coil conductor connected to a second input/output terminal. The input/output terminal side first coil conductor is located between the intermediate second coil conductor and the input/output terminal side second coil conductor, and the input/output terminal side second coil conductor is located between the intermediate first coil conductor and the input/output terminal side first coil conductor.
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公开(公告)号：US20210297051A1
公开(公告)日：2021-09-23
申请号：US17324926
申请日：2021-05-19
发明人： Song Lin , Xudong Wang , Kefei Wu , Christopher Eugene Hay
IPC分类号： H03H7/18
摘要： A power combiner/divider circuit can be structured having a base structure with the addition of an odd-mode capacitor and a low pass network at an end of the base structure or structured having a base structure with the addition of an inductor and a high pass network at an end of the base structure. The power combiner/divider circuit can be implemented as a port coupled to multiple ports with low pass networks or high pass networks arranged at the ends of paths to the multiple ports. In embodiments using low pass base structures or low pass networks coupled to the base structures, inductors in such low pass sections can be positively coupled on a pair-wise basis.
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公开(公告)号：US10903813B2
公开(公告)日：2021-01-26
申请号：US16575078
申请日：2019-09-18
发明人： Tomoyuki Tanaka , Takahiro Nakamura
摘要： A phase shifter capable of improving phase accuracy by a simple method is provided. The phase shifter includes a hybrid coupler circuit including inductors with mutual inductances, an amplifying circuit, an impedance matching circuit provided between the hybrid coupler circuit and the amplifying circuit. The impedance matching circuit includes a first resistance element connected to an output node of the hybrid coupler circuit, a capacitance element connected between the first resistance element and the ground line in series, another inductor connected in parallel with the first resistance element, and a second resistance element provided between the inductor and the ground line in series.
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公开(公告)号：US10686236B2
公开(公告)日：2020-06-16
申请号：US15839125
申请日：2017-12-12
申请人： Searete LLC
发明人： Daniel Arnitz , Joseph Hagerty , Russell J. Hannigan , Guy S. Lipworth , Matthew S. Reynolds , Yaroslav A. Urhumov
摘要： According to various embodiments, a quadrature hybrid coupler included as part of a phase shifter is used to provide variable phase shift to an input signal. The quadrature hybrid coupler includes an input port, an output port, and two terminated ports. The phase shifter includes one or more static lumped elements connected to the QHC to reduce at least one electrical dimension of the QHC to substantially less than a quarter wavelength. The phase shifter also include one or more variable lumped elements connected to the QHC to provide a variable phase shift to the input signal between the input port and the output port of the QHC.
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公开(公告)号：US20200014363A1
公开(公告)日：2020-01-09
申请号：US16028816
申请日：2018-07-06
发明人： Huairen YI , Zhengxiang MA
摘要： A branch line coupler and active antenna system are provided. In an embodiment, the branch line coupler comprises four resonators. The four resonators are formed by a body and a grounded element. A resonator comprises a capacitor element and an inductor element. A first portion of the capacitor element comprises at least a portion of the body and a second portion comprises at least a portion of the grounded element. The inductor element is connected to the capacitor element in parallel. The inductor element comprises at least a portion of the body and extends to the grounded element. The first and second resonators are coupled by a first coupling, the second resonator and the third resonator are coupled by a second coupling, the third resonator and the fourth resonator are coupled by a second third coupling, and the fourth resonator and the first resonator are coupled by a fourth coupling.
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