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公开(公告)号：US5923228A
公开(公告)日：1999-07-13
申请号：US812691
申请日：1997-03-06
申请人： Takekazu Okada , Satoru Shinmura , Fumio Kanaya , Akira Toba , Toshihiro Nomoto
发明人： Takekazu Okada , Satoru Shinmura , Fumio Kanaya , Akira Toba , Toshihiro Nomoto
CPC分类号： H03H2/001
摘要： An S/N enhancer is provided which can be formed to be small in size and in which impedance matching can easily be achieved. The S/N enhancer includes two magnetostatic wave elements. First to fourth transducers each in the shape of a single line are disposed on YIG thin films of the magnetostatic wave elements in parallel and spaced from one another. An input terminal is connected to one end of the first transducer. An attenuator is connected between the other end of the first transducer and one end of the third transducer. A 180.degree. shifter and another attenuator are connected in series between one end of the second transducer and one end of the fourth transducer. An output terminal is connected to the other end of the fourth transducer. The other ends of the second and third transducers are respectively grounded.
摘要翻译： 提供了可以形成为尺寸小并且可以容易地实现阻抗匹配的S / N增强器。 S / N增强器包括两个静磁波元件。 以单线形状的第一至第四换能器彼此并联并且彼此间隔开地设置在静磁波元件的YIG薄膜上。 输入端子连接到第一换能器的一端。 衰减器连接在第一换能器的另一端和第三换能器的一端之间。 180度移位器和另一衰减器串联连接在第二换能器的一端和第四换能器的一端之间。 输出端子连接到第四换能器的另一端。 第二和第三换能器的另一端分别接地。
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公开(公告)号：US5523725A
公开(公告)日：1996-06-04
申请号：US395762
申请日：1995-02-28
申请人： Youhei Ishikawa , Takekazu Okada , Satoru Shinmura , Fumio Kanaya , Shinichiro Ichiguchi , Toshihito Umegaki , Toshihiro Nomoto
发明人： Youhei Ishikawa , Takekazu Okada , Satoru Shinmura , Fumio Kanaya , Shinichiro Ichiguchi , Toshihito Umegaki , Toshihiro Nomoto
摘要： A signal-to-noise enhancer 10 includes a first 90 degree hybrid set 20. A first output end of the first 90 degree hybrid set 20 is connected to an input end of a limiter used a magnetostatic wave element 62a utilized the magnetostatic surface wave mode. Also, a second output end of the first 90 degree hybrid set 20 is connected to an input end of a filter used a magnetostatic wave element 62b similar to the magnetostatic wave element 62a in structure, via a resistor 32 as a first attenuator. Furthermore, an output end of the limiter is connected to a first input end of a second 90 degree hybrid set 40 via a resistor 52 as a second attenuator. Also, an output end of the filter is connected to a second input end of the second 90 degree hybrid set 40.
摘要翻译： 信号噪声增强器10包括第一90度混合组20.第一90度混合组20的第一输出端连接到限幅器的输入端，使用静磁波元件62a，利用静磁表面波模式 。 此外，第一90度混合组20的第二输出端通过作为第一衰减器的电阻器32连接到使用类似于静磁波元件62a的静磁波元件62a的滤波器的输入端。 此外，限幅器的输出端通过作为第二衰减器的电阻器52连接到第二90度混合组40的第一输入端。 此外，滤波器的输出端连接到第二90度混合组40的第二输入端。
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公开(公告)号：US5283541A
公开(公告)日：1994-02-01
申请号：US857197
申请日：1992-03-25
申请人： Takekazu Okada , Satoru Shinmura , Yasuhide Kamado , Fumio Kanaya
发明人： Takekazu Okada , Satoru Shinmura , Yasuhide Kamado , Fumio Kanaya
CPC分类号： H03H2/001
摘要： The magnetostatic wave device 10 includes a holder 12 made of synthetic resin. The holder 12 is provided with a number of recesses 14, 16, 22a, 22b, 24a and 24b. In the holder 12, a magnet 30 is housed in the recess 14, and a YIG element 32 as a ferromagnetic element is housed in the recess 16, and transducers 34a and 34b are housed in the recesses 22a, 22b, 24a and 24b.
摘要翻译： 静磁波装置10包括由合成树脂制成的支架12。 保持器12设置有多个凹部14,16，22a，22b，24a和24b。 在保持器12中，磁体30容纳在凹部14中，作为铁磁性元件的YIG元件32容纳在凹部16中，换能器34a，34b容纳在凹部22a，22b，24a，24b中。
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公开(公告)号：US5781079A
公开(公告)日：1998-07-14
申请号：US559446
申请日：1995-11-15
申请人： Takekazu Okada , Satoru Shinmura , Fumio Kanaya
发明人： Takekazu Okada , Satoru Shinmura , Fumio Kanaya
CPC分类号： H03H2/001
摘要： A compact, low-cost magnetostatic wave device which can serve as an S/N enhancer or a filter. The magnetostatic wave device includes a ferromagnetic base; at least one transducer having a portion arranged adjacent to one surface of the ferromagnetic base and another. portion arranged adjacent to the other surface of the ferromagnetic base; an input terminal with one side connected to one end of the transducer and the other side grounded; and an output terminal with one side connected to the other end of the transducer and the other side grounded. The ferromagnetic base is preferably disk-shaped.
摘要翻译： 可用作S / N增强器或滤波器的紧凑型低成本静磁波器件。 静磁波装置包括铁磁基座; 至少一个换能器具有邻近铁磁性基底的一个表面设置的部分和另一个。 邻近铁磁性基底的另一表面布置的部分; 输入端子，其一侧连接到换能器的一端，另一侧接地; 以及输出端子，其一侧连接到换能器的另一端，另一侧接地。 铁磁性基底优选为盘状。
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公开(公告)号：US5663698A
公开(公告)日：1997-09-02
申请号：US352260
申请日：1994-12-08
CPC分类号： H03H2/001
摘要： A magnetostatic wave device includes a dielectric substrate. Micro strip lines as transducers are formed by forming a ground electrode and strip-line electrodes, on both surfaces of the dielectric substrate. A ferrimagnetic base material formed with a GGG substrate and a YIG thin film on the GGG substrate is arranged on the strip-line electrodes. The ferrimagnetic base material is formed so that the end portions slant from the strip-line electrodes outwardly. The length of the ferrimagnetic base material is established to provide a minimum value.
摘要翻译： 静磁波装置包括电介质基片。 作为换能器的微带线通过在电介质基板的两个表面上形成接地电极和带状线电极而形成。 在GGG基板上形成有GGG基板和YIG薄膜的铁磁性基材配置在带状电极上。 形成铁氧体基材，使得端部从带状电极向外倾斜。 建立铁氧体磁性基材的长度以提供最小值。
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公开(公告)号：US5345204A
公开(公告)日：1994-09-06
申请号：US14433
申请日：1993-02-05
申请人： Takekazu Okada , Satoru Shinmura , Fumio Kanaya
发明人： Takekazu Okada , Satoru Shinmura , Fumio Kanaya
CPC分类号： H03H2/001
摘要： A magnetostatic wave resonator includes a YIG thin film. On one main surface of the YIG thin film, three circular conductors having different radii are disposed on concentric circles whose centers are the center of the YIG thin film. Furthermore, on the YIG thin film, two transducers are disposed so as to intersect with each other at right angles at the center of the YIG thin film and to connect magnetically to the YIG thin film.
摘要翻译： 静磁波谐振器包括YIG薄膜。 在YIG薄膜的一个主表面上，具有不同半径的三个圆形导体设置在其中心为YIG薄膜中心的同心圆上。 此外，在YIG薄膜上，设置两个换能器以在YIG薄膜的中心处以直角彼此相交并且与YIG薄膜磁性连接。
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公开(公告)号：US06819198B2
公开(公告)日：2004-11-16
申请号：US09792573
申请日：2001-02-23
IPC分类号： H01P136
CPC分类号： H01P1/36
摘要： A nonreciprocal circuit device includes a first center electrode and a second center electrode intersecting each other, each having one end thereof grounded, a ferrimagnetic body provided in the vicinity of the first center electrode and the second center electrode, a magnet applying a magnetostatic field to the ferrimagnetic body, a series capacitor connected in series between the other end of the first center electrode and an input terminal and a series capacitor connected in series between the other end of the second center electrode and an output terminal, and a parallel capacitor connected in parallel between the other end of the first center electrode and a ground and a parallel capacitor connected in parallel between the other end of the second center electrode and the ground.
摘要翻译： 不可逆电路装置包括第一中心电极和第二中心电极，每个第一中心电极和第二中心电极的一端接地，设置在第一中心电极和第二中心电极附近的铁磁体，施加静磁场的磁体 所述亚铁磁体，串联连接在所述第一中心电极的另一端和输入端子之间的串联电容器和串联连接在所述第二中心电极的另一端与输出端子之间的串联电容器，以及并联电容器， 平行于第一中心电极的另一端与接地之间并联连接并联在第二中心电极的另一端与地之间。
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8.发明授权
公开(公告)号：US5701108A
公开(公告)日：1997-12-23
申请号：US649930
申请日：1996-05-16
申请人： Takashi Fujii , Satoru Shinmura , Masaru Fujino , Shinobu Mizuno , Takenori Sekijima , Osamu Chikagawa , Hiroshi Takagi
发明人： Takashi Fujii , Satoru Shinmura , Masaru Fujino , Shinobu Mizuno , Takenori Sekijima , Osamu Chikagawa , Hiroshi Takagi
CPC分类号： H03H2/001 , H01F10/245
摘要： A magnetostatic wave device has an external magnetic field applied in a direction that is substantially parallel to a plane of a thin film of a magnetic single-crystal having a garnet structure. The thin film of the magnetic single-crystal has an axis of easy magnetization that is oriented in substantially the same direction as the direction of the externally applied magnetic field.
摘要翻译： 静磁波装置具有在与具有石榴石结构的磁性单晶的薄膜的平面基本平行的方向上施加的外部磁场。 磁性单晶的薄膜具有容易磁化的轴，其取向为与外部施加的磁场的方向基本相同的方向。
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公开(公告)号：US5032811A
公开(公告)日：1991-07-16
申请号：US459028
申请日：1989-12-29
CPC分类号： H03H2/001
摘要： A magnetostatic wave filter comprises a waveguide having a cut-off frequency region. In this waveguide, a YIG thin film is installed as a ferrimagnetic base material. Also, the cut-off frequency region of this waveguide comprises an attenuation band of the magnetostatic wave filter. Electromagnetic wave in the attenuation band of the magnetostatic wave filter is attenuated by this waveguide.
摘要翻译： 静磁波滤波器包括具有截止频率区域的波导。 在该波导中，YIG薄膜作为铁磁性基材安装。 此外，该波导的截止频率区域包括静磁波滤波器的衰减频带。 静磁波滤波器的衰减带中的电磁波被该波导衰减。
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公开(公告)号：US4985709A
公开(公告)日：1991-01-15
申请号：US365073
申请日：1989-06-12
摘要： A magnetostatic wave device comprises a ferrimagnetic base material such as a thin film of YIG (yttrium iron garnet). The ferrimagnetic base material is formed on a supporting plate, for example, a GGG (gadolinium gallium garnet) substrate. On one principal surface of the thin ferrimagnetic base material, a first coupling antenna is formed. Furthermore, on one principal surface of the ferrimagnetic base material, second coupling antennas are formed on both sides of the first coupling antenna. In this magnetostatic wave device, the magnetostatic wave propagated from the first coupling antenna toward both sides of the first coupling antenna is received by the second coupling antennas on both sides of the first coupling antenna.
摘要翻译： 静磁波装置包括诸如YIG（钇铁石榴石）薄膜的铁磁性基材。 亚铁磁性基材形成在支撑板上，例如GGG（钆镓石榴石）基板。 在薄铁氧体磁性基材的一个主表面上形成第一耦合天线。 此外，在铁氧体磁性基材的一个主表面上，第二耦合天线形成在第一耦合天线的两侧。 在该静磁波装置中，从第一耦合天线向第一耦合天线的两侧传播的静磁波由第一耦合天线两侧的第二耦合天线接收。
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