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1. 发明授权

US4755780A Ferromagnetic resonator having temperature compensation means using pre-coded compensation data 失效
标题翻译：具有使用预编码补偿数据的温度补偿装置的铁磁谐振器
公开(公告)号：US4755780A
公开(公告)日：1988-07-05
申请号：US101646
申请日：1987-09-28
申请人： Seigo Ito , Yoshikazu Murakami , Tomikazu Watanabe , Takahiro Ohgihara
发明人： Seigo Ito , Yoshikazu Murakami , Tomikazu Watanabe , Takahiro Ohgihara
IPC分类号： G01N24/00 , H01F7/20 , H01P1/215 , H01P1/218 , H01P1/30 , H01P7/00
CPC分类号： H01P1/218 , H01P1/30
摘要： A ferrimagnetic resonator is disclosed which is stabilized upon temperature deviation and operable over a wide frequency range. The resonator comprises a ferrimagnetic thin film resonance element, a temperature detector for the resonance element a bias magnetic field generating coil, a compensation coil and a compensation circuit. The compensation circuit has a pre-coded compensation data upon operation temperature range and generates a compensation signal in response a detected temperature of the resonance element. The compensation signal is then fed to the compensation coil to generate an additional magnetic field to the resonance element thus the resonance frequency of the resonance element is stabilized upon temperature.
摘要翻译：公开了一种亚铁磁共振器，其在温度偏差下稳定并且可在宽的频率范围上操作。谐振器包括铁氧体薄膜谐振元件，用于谐振元件的温度检测器，偏置磁场产生线圈，补偿线圈和补偿电路。补偿电路在操作温度范围内具有预编码的补偿数据，并根据谐振元件的检测温度产生补偿信号。然后将补偿信号馈送到补偿线圈以产生对谐振元件的附加磁场，因此谐振元件的谐振频率在温度下稳定。

2. 发明授权

US4887052A Tuned oscillator utilizing thin film ferromagnetic resonator 失效
标题翻译：使用薄膜铁磁谐振器的调谐振荡器
公开(公告)号：US4887052A
公开(公告)日：1989-12-12
申请号：US276146
申请日：1988-11-25
申请人： Yoshikazu Murakami , Yasuyuki Mizunuma , Takahiro Ohgihara , Hiroyuki Nakano , Kanako Niikura , Tsutomu Okamoto
发明人： Yoshikazu Murakami , Yasuyuki Mizunuma , Takahiro Ohgihara , Hiroyuki Nakano , Kanako Niikura , Tsutomu Okamoto
IPC分类号： H03B1/00 , H03B5/04 , H03B5/18 , H03D7/16
CPC分类号： H03B5/1894 , H03B2201/0241 , H03B5/04 , H03D7/161
摘要： A tuned oscillator utilizing a thin film ferromagnetic resonator is disclosed. The oscillator comprises an active element for oscillator and a YIG thin film resonator connected to the active element as a part of feed-back circuit for the active element. The YIG thin film resonator is applied with a bias magnetic field perpendicular to a surfce of a YIG disk which is generated by a permanent magnet for a fixed component and a coil for a variable component for the resonance frequency. The resonance frequency is stabilized by use of a PLL circuit connected to an output of the oscillator and feeding back to the coil. Since the YIG thin film tuned oscillator has a high Q value, high quality communication signal processing can be achieved. The YIG tuned oscillator is used as local oscillator for a transciever.

3. 发明授权

US4945324A Thin film ferromagnetic resonance tuned filter 失效
标题翻译：薄膜铁磁谐振调谐滤波器
公开(公告)号：US4945324A
公开(公告)日：1990-07-31
申请号：US326430
申请日：1989-03-17
申请人： Yoshikazu Murakami , Takahiro Ohgihara , Kanako Niikura , Yasuyuki Mizunuma , Hiroyuki Nakano
发明人： Yoshikazu Murakami , Takahiro Ohgihara , Kanako Niikura , Yasuyuki Mizunuma , Hiroyuki Nakano
IPC分类号： H01P1/218
CPC分类号： H01P1/218
摘要： In a thin film ferromagnetic resonance tuned filter is disclosed which comprises a ferrimagnetic thin films, input and output signal transmission lines respectively coupled with the ferrimagnetic thin films, and a magnetic circuit for applying a DC magnetic field to the ferrimagnetic thin films, the present invention expands the variable frequency band by forming extensions each extending from the signal transmission line so that the distance from the coupling point of the signal transmission line coupled with the corresponding ferrimagnetic thin film to the grounded end thereof is 1/10 or above and less than 1/4 the wavelength of a wave transmitted in the transmission lines at the upper limit frequency of a tuning frequency band. Further the deterioration of the isolation characteristics is suppressed by bending the extended portions not to form parallel portions to another transmission line.
摘要翻译：本发明公开了一种薄膜铁磁谐振调谐滤波器，其包括铁氧体薄膜，分别与铁磁薄膜耦合的输入和输出信号传输线以及用于向铁磁性薄膜施加直流磁场的磁路通过形成从信号传输线延伸的扩展扩展可变频带，使得从与相应的铁磁性薄膜耦合到其接地端的信号传输线的耦合点的距离为1/10以上且小于1 / 4是在调谐频带的上限频率处在传输线中传输的波的波长。此外，通过弯曲延伸部分而不形成平行部分到另一传输线来抑制隔离特性的劣化。

4. 发明授权

US4873496A Tuned oscillator 失效
标题翻译：调谐振荡器
公开(公告)号：US4873496A
公开(公告)日：1989-10-10
申请号：US281289
申请日：1988-12-08
申请人： Takahiro Ohgihara , Yoshikazu Murakami , Yasuyuki Mizunuma , Hiroyuki Nakano
发明人： Takahiro Ohgihara , Yoshikazu Murakami , Yasuyuki Mizunuma , Hiroyuki Nakano
IPC分类号： H03B5/40 , H01P3/08 , H03B1/00 , H03B5/18 , H03B19/00
CPC分类号： H03B5/1894 , H03B19/00 , H03B2201/0241 , H03B5/1852
摘要： A tuned oscillator is disclosed which consists of an active element for oscillation, a ferrimagnetic resonant element connected to part of feedback of the active element, and a matching circuit connected to the active element. The matching cirucit is designed to reflect the fundamental wave produced by the ferrimagnetic resonant element and active and pass the second harmonic wave. Consequently, the magnetic circuit has its load reduced in applying a D.C. magnetic field necessary for frequency tuning to the ferrimagnetic resonance element.

5. 发明授权

US4701729A Magnetic apparatus including thin film YIG resonator 失效
标题翻译：磁性设备包括薄膜YIG谐振器
公开(公告)号：US4701729A
公开(公告)日：1987-10-20
申请号：US708851
申请日：1985-03-06
申请人： Seigo Ito , Yoshikazu Murakami
发明人： Seigo Ito , Yoshikazu Murakami
IPC分类号： H01P1/30 , H01F7/02 , H01P1/218 , H01P1/32 , H01P7/00
CPC分类号： H01P1/218 , H01F7/02
摘要： Disclosed herein is a magnetic apparatus comprising: a magnetic circuit including magnetic yoke and a magnet, with a magnetic gap formed in the circuit for forming a uniform d.c. bias magnetic field in the magnetic gap; a magnetic device made of magnetic material of certain composition and placed in the magnetic gap so that the device operates in the d.c. bias magnetic field; and a soft magnetic plate provided in the magnetic gas, the soft magnetic plate being made of magnetic material having composition substantially identical to the composition of the magnetic device.
摘要翻译：这里公开了一种磁性装置，包括：包括磁轭和磁体的磁路，在电路中形成有用于形成均匀直流的磁隙。磁隙中的偏磁场; 由具有某种组成的磁性材料制成并放置在磁隙中的磁性装置，使得该装置以直流运行。偏磁场; 以及设置在磁性气体中的软磁性板，该软磁性板由磁性材料制成，其组成与磁性装置的组成基本相同。

6. 发明授权

US4626800A YIG thin film tuned MIC oscillator 失效
标题翻译： YIG薄膜调谐麦克风振荡器
公开(公告)号：US4626800A
公开(公告)日：1986-12-02
申请号：US740813
申请日：1985-06-03
申请人： Yoshikazu Murakami , Seigo Ito , Toshiro Yamada
发明人： Yoshikazu Murakami , Seigo Ito , Toshiro Yamada
IPC分类号： H03B9/14 , H01P1/215 , H01P7/00 , H03B1/00 , H03B5/18
CPC分类号： H03B5/1888 , H01P1/215 , H03B2201/0241 , H03B5/1847
摘要： A tuned oscillator is disclosed which comprises an active element, a resonator electrically connected to the active element and made of a magnetic material using ferro-magnetic resonance phenomenon, and a magnetic circuit for applying a magnetic field to the resonator. The resonator is made of an YIG (yttrium, iron and garnet) thin film magnetic resonance element formed by a thin film forming technique and utilizes an uniform mode ferro-magnetic resonance in the YIG thin film, and operating under the application of magnetic field of the magnetic circuit.
摘要翻译：公开了一种调谐振荡器，其包括有源元件，电连接到有源元件并由使用铁磁共振现象的磁性材料制成的谐振器和用于向谐振器施加磁场的磁路的谐振器。谐振器由YIG（钇，铁和石榴石）薄膜磁共振元件制成，通过薄膜形成技术形成，并在YIG薄膜中利用均匀模式的铁磁共振，并在施加磁场的作用下磁路。

7. 发明授权

US4679015A Ferromagnetic resonator 失效
标题翻译：铁磁谐振器
公开(公告)号：US4679015A
公开(公告)日：1987-07-07
申请号：US844984
申请日：1986-03-27
申请人： Yoshikazu Murakami , Seigo Ito , Hiromi Okamoto , Hideo Tanaka
发明人： Yoshikazu Murakami , Seigo Ito , Hiromi Okamoto , Hideo Tanaka
IPC分类号： H01P5/08 , H01P1/218 , H01P7/08
CPC分类号： H01P1/218
摘要： A ferromagnetic resonator comprises a nonmagnetic substrate, a ferrimagnetic thin film element formed on a major surface of the nonmagnetic substrate, a strip line for example formed on another major surface of the nonmagnetic substrate and electromagnetically coupled to the ferrimagnetic thin film element, a conductive wall facing the strip line and spaced therefrom a predetermined distance, an end of the strip line being connected by the conductive wall to ground potential and a bias magnetic field source applying a D.C. magnetic field to the ferrimagnetic thin film perpendicular to the major surface thereof. Such an arrangement enables a drastic reduction in the effective dielectric constant of the transmission lines, whereby a filter with a high center frequency of the order of at least ten gigahertz can be achieved despite the short type structure.
摘要翻译：铁磁谐振器包括非磁性衬底，形成在非磁性衬底的主表面上的铁磁性薄膜元件，例如形成在非磁性衬底的另一个主表面上并与电磁耦合到铁氧体薄膜元件的导电壁面对带状线并与之隔开预定距离，带状线的端部由导电壁连接到接地电位，偏置磁场源将垂直于其主表面的铁磁性薄膜施加直流磁场。这种布置使得能够大大降低传输线的有效介电常数，由此尽管具有短型结构，但是可以实现具有至少十千兆赫数量级的高中心频率的滤波器。

8. 发明授权

US4745380A YIG thin film microwave apparatus 失效
标题翻译： YIG薄膜微波设备
公开(公告)号：US4745380A
公开(公告)日：1988-05-17
申请号：US883605
申请日：1986-07-09
申请人： Yoshikazu Murakami , Hideo Tanaka , Masami Miyake , Seigo Ito , Hitoshi Tamada , Toshiro Yamada
发明人： Yoshikazu Murakami , Hideo Tanaka , Masami Miyake , Seigo Ito , Hitoshi Tamada , Toshiro Yamada
IPC分类号： H01F10/24 , H01P1/218 , H01P7/00
CPC分类号： H01F10/245 , H01P1/218
摘要： A YIG film microwave device utilizing the ferrimagnetic resonance of a YIG film, comprising a YIG film microwave element formed by a liquid phase epitaxial growth process and a photolithographic process, and a magnetic circuit including permanent magnets for applying a DC magnetic field to the YIG film microwave element. Some of the Fe.sup.3+ ions of the YIG film are substituted by nonmagnetic ions to provide the YIG film microwave device with satisfactory temperature characteristics. The YIG film microwave device is capable of operating stably over the wide range of working frequency and that of temperature.
摘要翻译：利用YIG膜的亚铁磁共振的YIG膜微波器件，包括通过液相外延生长工艺和光刻工艺形成的YIG膜微波元件，以及包括用于向YIG膜施加直流磁场的永磁体的磁路微波元件 YIG膜的一些Fe3 +离子被非磁性离子取代，为YIG膜微波器件提供令人满意的温度特性。 YIG薄膜微波器件能够在宽范围的工作频率和温度范围内稳定运行。

9. 发明授权

US4636756A Apparatus for varying the magnetic field for a magnetic resonance element 失效
标题翻译：用于改变磁共振元件的磁场的装置
公开(公告)号：US4636756A
公开(公告)日：1987-01-13
申请号：US769896
申请日：1985-08-27
申请人： Seigo Ito , Yoshikazu Murakami
发明人： Seigo Ito , Yoshikazu Murakami
IPC分类号： H01P7/00 , G01R33/00 , H01P1/215 , H01P1/217 , H01P1/218 , H01P1/203
CPC分类号： H01P1/215 , H01P1/218
摘要： Apparatus for varying the magnetic field in a magnetic resonant element which comprises a magnetic yoke with one or more magnets mounted within the magnetic yoke so as to generate a substantially uniform magnetic field in the magnetic yoke and a plurality of magnetic resonance elements located in the magnetic field formed by the magnet and including adjusting means for varying the magnetic reluctance between the magnetic yoke and the magnet at a position which is opposite the position of the plurality of magnetic resonance elements. The magnetic reluctance can be varied to arrive at the desired strength of the magnetic field.
摘要翻译：用于改变磁共振元件中的磁场的装置，其包括具有安装在磁轭内的一个或多个磁体的磁轭，以便在磁轭中产生基本上均匀的磁场，以及位于磁轭中的多个磁共振元件并且包括用于在与多个磁共振元件的位置相反的位置处改变磁轭和磁体之间的磁阻的调节装置。可以改变磁阻以达到磁场的期望强度。

10. 发明授权

US4746884A YIG thin film microwave apparatus 失效
标题翻译： YIG薄膜微波设备
公开(公告)号：US4746884A
公开(公告)日：1988-05-24
申请号：US883603
申请日：1986-07-09
申请人： Yoshikazu Murakami , Hideo Tanaka , Masami Miyake , Seigo Ito , Hitoshi Tamada , Toshiro Yamada
发明人： Yoshikazu Murakami , Hideo Tanaka , Masami Miyake , Seigo Ito , Hitoshi Tamada , Toshiro Yamada
IPC分类号： H01F10/24 , H01P1/218 , H01P7/00 , H01P7/08
CPC分类号： H01P1/218 , H01F10/245
摘要： Disclosed is a YIG thin film device utilizing ferrimagnetic resonance effect, a magnetic circuit having a gap of length lg where the YIG thin film device being provided and applying a bias magnetic field perpendicular to a film surface of the YIG thin film device, the magnetic circuit including a permanent magnet having a thickness lm and a soft magnetic plate having a thickness lx, the permanent magnet satisfying the characteristics ##EQU1## the soft magnetic plate satisfying the characteristics ##EQU2## wherein fo is resonance frequency of the YIG thin film device,.gamma. is gyromagnetic ratio of the YIG thin filmNz.sup.Y is demagnetization factor of the YIG thin film4.pi.Mso.sup.Y is saturation magnetization of the YIG thin film at room temperature,4.pi.Mso.sup.x is saturation magnetization of the soft magnetic plate,Br.sup.o is remanence of the permanent magnet at room temperature,.alpha..sub.1.sup.B is first order temperature coefficient of the remanence of the permanent magnet near room temperature,.alpha..sub.1.sup.Y is first order temperature coefficient of the saturation magnetization of the YIG thin film near room temperature,.alpha..sub.1.sup.x is first order temperature coefficient of the saturation magnetization of the soft magnetic plate near room temperatureand, the thickness lm and lx being selected to improve temperature dependency of the resonance frequency.
摘要翻译：公开了利用亚铁磁共振效应的YIG薄膜器件，具有长度为lg的间隙的磁路，其中设置了YIG薄膜器件，并施加垂直于YIG薄膜器件的膜表面的偏置磁场，磁路包括具有厚度lm的永磁体和厚度为lx的软磁性板，所述永磁体满足特性Bro>（fo / gamma）+ NzY4 pi MsoY＆lt; IMAGE＆gt;软磁性板满足特性4 pi MsoX fo / gamma）+ NzY4 pi MsoY 其中fo是YIG薄膜器件的谐振频率，γ是YIG薄膜的回磁比NzY是YIG薄膜4的去磁因子pi MsoY是YIG的饱和磁化薄膜在室温下，4 pi Msox是软磁板的饱和磁化，Bro是永磁体在室温下的剩磁，α1B是一级温度系数永久磁铁在室温附近的剩余磁通量α1Y是在室温附近的YIG薄膜的饱和磁化强度的一阶温度系数，α1x是软磁板在室内的饱和磁化强度的一阶温度系数温度，并且选择厚度lm和lx以改善谐振频率的温度依赖性。

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