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公开(公告)号：US11924963B2
公开(公告)日：2024-03-05
申请号：US17649875
申请日：2022-02-03
Applicant: Raytheon Company
Inventor： David D. Crouch , Jennifer Marie de la Barrera
CPC classification number: H05K1/0216 , H01P1/365 , H01Q1/38 , H01Q1/48 , H01Q1/525 , H01Q17/00 , H05K1/0206 , H05K3/4644 , H05K2201/10098
Abstract: An apparatus includes an isolation barrier configured to absorb electromagnetic energy. The isolation barrier includes multiple layers stacked on one another. Each of the multiple layers includes at least one dielectric material, at least one thin-film resistive material carried by the at least one dielectric material, and conductive strips in electrical contact with the at least one thin-film resistive material. The isolation barrier also includes vias through the multiple layers. Multiple ones of the vias are positioned along each of the conductive strips, and the vias electrically couple the conductive strips in the multiple layers to one another. The isolation barrier is configured to guide the electromagnetic energy through the multiple layers to enable absorption of the electromagnetic energy by the at least one thin-film resistive material.
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公开(公告)号：US10080609B2
公开(公告)日：2018-09-25
申请号：US14431684
申请日：2013-09-16
Applicant: CREO MEDICAL LIMITED
Inventor： Christopher Paul Hancock , Malcolm White , Francis Amoah , Nuwan Dharmisiri
CPC classification number: A61B18/1815 , A61B18/12 , A61B18/1206 , A61B18/14 , A61B2018/00166 , A61B2018/00601 , A61B2018/00916 , A61B2018/00994 , A61B2018/128 , A61B2018/1293 , A61B2018/1823 , A61B2018/1876 , A61B2018/1892 , H01P1/208 , H01P1/365
Abstract: An electrosurgical apparatus having a feed structure comprising a radiofrequency (RF) channel for conveying RF electromagnetic (EM) radiation from an RF signal generator to a probe and a microwave channel for conveying microwave EM radiation from a microwave signal generator to the probe, wherein the RF channel and microwave channel comprise physically separate signal pathways, wherein the feed structure includes a combining circuit having an input connected to the signal pathway on the RF channel, another input connected to the signal pathway on the microwave channel, and an output connected to a common signal pathway for conveying the RE EM radiation and EM radiation separately or simultaneously to the probe, and wherein the microwave channel includes a waveguide isolator connected to isolate the signal pathway on the microwave channel from the RF EM radiation.
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公开(公告)号：US20170279175A1
公开(公告)日：2017-09-28
申请号：US15620849
申请日：2017-06-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takaya WADA , Yoshiki YAMADA
CPC classification number: H01P1/365 , H01F7/0278 , H01F38/14 , H01F2038/146 , H01P1/213 , H01P1/2135 , H01P1/36
Abstract: An irreversible circuit element includes first and second high pass isolators each including first and second center electrodes intersecting with and being insulated from each other on a ferrite to which a direct-current magnetic field is applied with a permanent magnet. One end of the first center electrode is an output port and the other end thereof is an input port, and one end of the second center electrode is another output port and the other end thereof is a ground port. A pass frequency band of the first isolator is higher than a pass frequency band of the second isolator. Respective output portions of the first and second isolators are electrically connected and defined as one output terminal, and a low pass filter LPF is inserted between the output terminal and the output port of the second isolator.
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公开(公告)号：US09711839B2
公开(公告)日：2017-07-18
申请号：US14996881
申请日：2016-01-15
Applicant: Raytheon Company
Inventor： Matthew A. Morton , Gerhard Sollner
CPC classification number: H01P9/00 , H01P1/2039 , H01P1/227 , H01P1/365 , H01P9/02
Abstract: The present disclosure is directed towards a frequency selective limiter having a first magnetic material disposed over a first dielectric material and a strip conductor disposed over the magnetic material. In some embodiments, the frequency selective limiter includes a second magnetic material disposed over the strip conductor and a second dielectric material disposed over the second magnetic material. The first and second dielectric material may have a lower relative permittivity than the first and second magnetic material. In an embodiment, the frequency selective limiter includes a slow wave structure disposed to magnetically couple a magnetic field, produced by electromagnetic energy propagating through the slow wave structure, into the magnetic material.
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公开(公告)号：US20160181679A1
公开(公告)日：2016-06-23
申请号：US14996881
申请日：2016-01-15
Applicant: Raytheon Company
Inventor： Matthew A. Morton , Gerhard Sollner
CPC classification number: H01P9/00 , H01P1/2039 , H01P1/227 , H01P1/365 , H01P9/02
Abstract: The present disclosure is directed towards a frequency selective limiter having a first magnetic material disposed over a first dielectric material and a strip conductor disposed over the magnetic material. In some embodiments, the frequency selective limiter includes a second magnetic material disposed over the strip conductor and a second dielectric material disposed over the second magnetic material. The first and second dielectric material may have a lower relative permittivity than the first and second magnetic material. In an embodiment, the frequency selective limiter includes a slow wave structure disposed to magnetically couple a magnetic field, produced by electromagnetic energy propagating through the slow wave structure, into the magnetic material.
Abstract translation: 本公开涉及一种频率选择限制器，其具有设置在第一电介质材料上的第一磁性材料和设置在磁性材料上的带状导体。 在一些实施例中，频率选择限制器包括设置在带状导体上的第二磁性材料和设置在第二磁性材料上的第二介电材料。 第一和第二介电材料可以具有比第一和第二磁性材料低的相对介电常数。 在一个实施例中，频率选择限制器包括慢波结构，其设置为将由慢波结构传播的电磁能产生的磁场磁耦合到磁性材料中。
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Patent Agency Ranking
公开(公告)号：US20150070103A1
公开(公告)日：2015-03-12
申请号：US14542916
申请日：2014-11-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Seigo HINO
Abstract: A non-reciprocal circuit element includes a permanent magnet, a microwave magnetic body to which a direct current magnetic field is applied by the permanent magnet, a first center electrode that is wrapped around the microwave magnetic body, is connected at one end to an input port, and is connected at another end to an output port, a second center electrode that is wrapped around the microwave magnetic body while intersecting with the first center electrode so as to be insulated from the first center electrode, is connected at one end to the output port, and is connected at another end to a ground port, a first matching capacitance connected between the input port and the output port in parallel with the first center electrode, a terminating resistance connected between the input port and the output port in parallel with the first center electrode, and a second matching capacitance connected between the output port and the ground port. A sub-center electrode is connected in parallel to a portion of the second center electrode.
Abstract translation: 不可逆电路元件包括：永磁体，由永磁体施加直流磁场的微波磁体;缠绕在微波磁体上的第一中心电极，其一端连接到输入端 并且在另一端连接到输出端口，在与第一中心电极交叉以与第一中心电极绝缘的同时缠绕在微波磁体上的第二中心电极在一端连接到 输出端口，并且在另一端连接到接地端口，第一匹配电容连接在输入端口和输出端口之间并联于第一中心电极，终端电阻连接在输入端口和输出端口之间并联 第一中心电极和连接在输出端口和接地端口之间的第二匹配电容。 副中心电极与第二中心电极的一部分并联连接。
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公开(公告)号：US08279017B2
公开(公告)日：2012-10-02
申请号：US13222004
申请日：2011-08-31
Applicant: Takashi Hasegawa
Inventor： Takashi Hasegawa
IPC: H01P1/32
Abstract: A magnetic resonance type isolator includes a ferrite; a connection conductor that is arranged on the ferrite and includes a first port, a second port and a third port; a permanent magnet that applies a direct current magnetic field to the ferrite; an inductor that defines a reactance element; and capacitors that define an impedance matching circuit. A main line arranged between the first port and the second port of the connection conductor does not resonate, an end portion of a sub-line that branches from the main line serves as the third port, and a wave reflected from the sub-line is modulated so that its phase is shifted by 90° or about 90° at an intersection of the connection conductor. The inductor is connected to the third port and the capacitors are connected to the first and second ports, respectively.
Abstract translation: 磁共振型隔离器包括铁氧体; 连接导体，其布置在所述铁氧体上并且包括第一端口，第二端口和第三端口; 对铁氧体施加直流磁场的永磁体; 限定电抗元件的电感器; 以及限定阻抗匹配电路的电容器。 布置在连接导体的第一端口和第二端口之间的主线不谐振，从主线分支的子线的端部用作第三端口，并且从子线反射的波是 被调制使得其相位在连接导体的交点处偏移90°或90°。 电感器连接到第三端口，电容器分别连接到第一和第二端口。
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公开(公告)号：US3078425A
公开(公告)日：1963-02-19
申请号：US59750356
申请日：1956-07-12
Applicant: SPERRY RAND CORP
Inventor： DUNCAN BOBBY J
IPC: H01P1/365
CPC classification number: H01P1/365
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