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    Materials, devices and methods related to below-resonance radio-frequency circulators and isolators
    31.
    发明公开
    Materials, devices and methods related to below-resonance radio-frequency circulators and isolators 审中-公开
    材料，设备和方法在与循环器和隔离器的谐振频率低于连接

    公开(公告)号：EP2851354A1

    公开(公告)日：2015-03-25

    申请号：EP14185385.3

    申请日：2014-09-18

    申请人： Skyworks Solutions, Inc.

    发明人： Cruickshank, David Bowie ,  MacFarlane, Iain Alexander ,  Hill, Michael David

    IPC分类号： C04B35/26 ,  H01F1/34

    CPC分类号： H01F10/245 ,  C01G49/0018 ,  C01G49/0054 ,  C01P2002/70 ,  C01P2006/40 ,  C01P2006/42 ,  C04B35/26 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3298 ,  C04B2235/764 ,  H01F1/01 ,  H01F1/346 ,  H01F10/24 ,  H01P1/38 ,  H01Q1/2291 ,  H01Q1/38 ,  H01Q7/06

    摘要： Materials, devices and methods related to below-resonance radio-frequency (RF) circulators and isolators. In some embodiments, a circulator can include a conductor having a plurality of signal ports, and one or more magnets configured to provide a magnetic field. The circulator can further include one or more ferrite disks implemented relative to the conductor and the one or more magnets so that an RF signal can be routed selectively among the signal ports due to the magnetic field. Each of the one or more ferrite disks can include synthetic garnet material having dodecahedral sites, octahedral sites and tetrahedral sites, with bismuth (Bi) occupying at least some of the dodecahedral sites, and aluminum (Al) occupying at least some of the tetrahedral sites. Such synthetic garnet material can be represented by a formula Y 3-x-2y-z Bi x Ca 2y+z Fe 5-y-z-a V y Zr z Al a O 12 . In some embodiments, x ≤ 1.4, y ≤ 0.7, z ≤ 0.7, and a ≤ 0.75.

    摘要翻译： 材料，设备和方法相关的低于共振的射频（RF）和环行隔离。 在一些实施例中，环行器可以包括具有的信号的端口，和经配置以提供磁场的一个或多个磁体的多个导体。 环行器可进一步包括相对于导体实现的一个或多个铁氧体盘和一个或多个磁体因此在RF信号做可以在信号端口之间选择性地路由由于磁场。 每个所述一个或多个铁氧体盘可以包括具有合成的石榴石材料十二面体位点，八面体位置和四面体位点，用铋（Bi）占据至少一些所述十二面体的网站，和铝（Al）占据至少一些四面体位置的 ， 搜寻合成石榴石材料可以由式Y 3-X-2Y-Z的Bi来表示X的Ca 2Y + Z 5的Fe-Y-Z-为Vý锆Ž的Al A○12 在一些实施方案中，x‰¤1.4，Y‰¤0.7，Z‰¤0.7和‰¤0.75。

    Faraday rotation angle varying device
    35.
    发明公开
    Faraday rotation angle varying device 有权
    法拉第Drehwinkel-Änderungsvorrichtung

    公开(公告)号：EP1162494A1

    公开(公告)日：2001-12-12

    申请号：EP00111097.2

    申请日：2000-06-05

    申请人： FDK Corporation

    发明人： Kawai, Hirotaka ,  Umezawa, Hiromitsu

    IPC分类号： G02F1/09 ,  H01F10/24

    CPC分类号： B82Y25/00 ,  G02F1/09 ,  G02F2201/16 ,  H01F10/245 ,  H01F10/3209

    摘要： There is provided a Faraday rotation angle varying device in which external magnetic fields are applied from at lease two directions to a garnet single crystal having a Faraday effect and vary a synthesized magnetic field so that Faraday rotation angle of light which transmits through the garnet single crystal is controlled. The device has a base film of garnet single crystal having a rotation angle varied in accordance with variation of a synthesized magnetic field, and a compensating film of a garnet single crystal having a constant Faraday rotation angle. The base film has a wavelength coefficient sign and the compensating film has a wavelength coefficient sign which is different from that of the base film, so that a wavelength variation component of the Faraday rotation angle of the base film is reduced by the compensating film. For example, a fixed magnetic field parallel to a light direction is applied by permanent magnets 40, 42 and a variable magnetic field is applied by an electromagnet.

    摘要翻译： 提供了一种法拉第旋转角度变化装置，其中从最初的两个方向将外部磁场施加到具有法拉第效应的石榴石单晶，并改变合成磁场，使得通过石榴石单晶透射的光的法拉第旋转角 被控制。 该装置具有根据合成磁场的变化而变化的旋转角度的石榴石单晶基膜和具有恒定法拉第旋转角度的石榴石单晶的补偿膜。 基膜具有波长系数符号，并且补偿膜具有与基膜不同的波长系数符号，从而通过补偿膜减小基膜的法拉第旋转角的波长变化分量。 例如，通过永磁体40,42施加与光方向平行的固定磁场，通过电磁铁施加可变磁场。

    Article comprising a magneto-optic material having low magnetic moment
    38.
    发明公开
    Article comprising a magneto-optic material having low magnetic moment 无效
    Artikel aus magneto-optischem材料mit weichem Magnetmoment

    公开(公告)号：EP0752713A1

    公开(公告)日：1997-01-08

    申请号：EP96304927.5

    申请日：1996-07-03

    申请人： Lucent Technologies Inc.

    发明人： Brandle Jr.,Charles David ,  Licht, Steven Joy ,  Fratello, Vincent Jerome

    IPC分类号： H01F10/24 ,  G02F1/00

    CPC分类号： H01F10/245 ,  G02F1/0036

    摘要： Garnet material according to a particular embodiment of the invention exhibits a substantially rectangular magnetization loop, with | H S | > | 4πM S | Oe and | 4πM s | S is the switching magnetic field of the loop, and 4πM S is the saturation magnetization. The material exhibits improved latching behavior. In a further embodiment of the invention the composition of the garnet material is selected such that the material exhibits hard latching behavior (| H S | ≥ 500 Oe) at least at room temperature. Garnet materials according to the invention can advantageously be used in magneto-optic isolators and other magneto-optic devices. For instance, the material enables manufacture of isolators that do not contain a bias magnet. Garnet materials according to the invention generally contain at most relatively small amounts of Gd, Tb and Dy (less than 1.0, 2.1 and 2.5 atoms per formula unit, respectively; with Gd + (Tb/2.1) + (Dy/2.5) 0.75 Eu 1.5 Ho 0.75 Fe 4.1 Ga 0.9 O 12 .

    摘要翻译： 根据本发明的特定实施例的石榴石材料在预定的工作范围（例如，-40至+80°）处表现出基本上矩形的磁化回路，其具有| HS | | | | | | | | | | | | | | | C），其中HS是环路的开关磁场，4πMS是饱和磁化强度。 该材料表现出改进的闭锁行为。 在本发明的另一个实施方案中，选择石榴石材料的组成使得该材料至少在室温下表现出硬的锁定行为（| HS |≥500Oe）。 根据本发明的石榴石材料可以有利地用于磁光隔离器和其它磁光器件中。 例如，该材料能够制造不含偏置磁体的隔离器。 根据本发明的石榴石材料通常含有至多相对少量的Gd，Tb和Dy（分别为每个式单元小于1.0,2.1和2.5个原子; Gd +（Tb / 2.1）+（Dy / 2.5）<1.0 ），通常含有Eu和/或Ho。 根据现有技术，根据本发明的组合物可以在工作温度范围内具有补偿温度，例如在室温下。 根据本发明的示例性石榴石具有标称组成为Bi 0.75 Eu 1.5 Ho 0.75 Fe 4.1 Ga 0.91 O 12。

    Material for magnetostatic-wave elements
    40.
    发明公开
    Material for magnetostatic-wave elements 失效
    材料为Gerätemit magnetostatischen Wellen。

    公开(公告)号：EP0606867A1

    公开(公告)日：1994-07-20

    申请号：EP94100238.8

    申请日：1994-01-10

    申请人： MURATA MANUFACTURING CO., LTD.

    发明人： Fujii, Takashi ,  Takagi, Hiroshi

    IPC分类号： H03H2/00 ,  H01F10/24

    CPC分类号： H01F41/28 ,  H01F10/245 ,  H03H2/001

    摘要： A material for magnetostatic wave elements consists essentially of a magnetic single-crystal garnet and at least one element of the halogen group incorporated therein, and has a composition expressed by the general formula:

            Y³⁺₃(Fe²⁺ x Fe³⁺ 5-x )O 12-x X⁻¹ x , or



            (Y³⁺ 3-m M m ) (Fe²⁺ x Fe³⁺ 5-x-n M' n )O 12-x X⁻¹ x


    where M is at least one trivalent element, M' is at least one element of trivalent or divalent metals, X is at least one element of halogen group, 0

    摘要翻译： 用于静磁波元件的材料主要由磁性单晶石榴石和其中掺入的卤素基团的至少一个元素组成，并具有由以下通式表示的组成：Y 3+ 3（Fe 2） （Fe 3+）x Fe 3（x 3+）5-x）O 12-x X 1 x或（Y 3+ 其中M是至少一个三价元素，M'是三价或二价金属的至少一种元素，X是至少一种元素的三价或二价金属，X是至少一种元素， 卤素基团，0