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2. 发明专利

JP2008211422A Noise suppression sheet evaluation device and method 审中-公开
标题翻译：噪声抑制片评估装置和方法
公开(公告)号：JP2008211422A
公开(公告)日：2008-09-11
申请号：JP2007045017
申请日：2007-02-26
申请人： Alps Electric Co Ltd , アルプス電気株式会社
发明人： TAKAHASHI TOSHIO
IPC分类号： H01P1/23 , H01Q17/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a noise suppression sheet evaluation device and a noise suppression sheet evaluation method capable of evaluating a conducted noise suppression effect and radiated noise suppression effect in an identical device and evaluating a comprehensive noise suppression effect.
SOLUTION: In a state that a noise suppression sheet 12 is placed on a conductive pattern 16 formed on an evaluation board 11, the noise suppression effect of a signal going through the conductive pattern 16 when a signal is output to the conductive pattern 16 is measured and each noise suppression effect in an area where the noise suppression sheet 12 is not present and an area where the noise suppression sheet 12 is present is measured. Thus, in the identical device, the conductive noise suppression effect and the radiated noise suppression effect can be evaluated and the comprehensive noise suppression effect can be evaluated.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供能够评价同一设备中的传导噪声抑制效果和辐射噪声抑制效果的噪声抑制片材评价装置和噪声抑制片材评价方法，并评价综合噪声抑制效果。解决方案：在噪声抑制片12放置在形成在评估板11上的导电图案16上的状态下，当信号输出到导电图案时，通过导电图案16的信号的噪声抑制效果测量噪声抑制片12不存在的区域和存在噪声抑制片12的区域中的每个噪声抑制效果。因此，在相同的装置中，可以评估导电噪声抑制效果和辐射噪声抑制效果，并且可以评估综合噪声抑制效果。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JPH10256811A MAGNETOSTATIC WAVE DEVICE 失效
公开(公告)号：JPH10256811A
公开(公告)日：1998-09-25
申请号：JP7653097
申请日：1997-03-11
申请人： MURATA MANUFACTURING CO
发明人： NIIMURA SATORU , ICHIGUCHI SHINICHIRO , MATSUZAKI HIROYASU , NISHIMURA SATORU , TOBA AKIRA , IMAMURA AKIRA , TAKAHASHI SHIGEKI
IPC分类号： H01P1/215 , H01P1/23 , H01P3/00
摘要： PROBLEM TO BE SOLVED: To provide a magnetostatic wave device whose characteristic is easily adjusted. SOLUTION: An S/N enhancer 10 includes a magnet 50 and a yoke 52 that apply a magnetic field to magnetostatic wave elements 12a, 12b. The yoke 52 has a projection 53 of nearly circular-arc shape that is extended to an axis perpendicularly to a magnetostatic wave propagation face. Furthermore, the S/N enhancer 10 includes four guide members 56 that support the yoke freely turnably and position the yoke 52. The yoke members 56 are placed at four corners of the yoke 52 and formed integrally with a frame 40 of a positioning member 38. Each guide member 56 has a recessed face 58 to support the projection 53 of the yoke 52 freely turnably. Each guide member 56 having the recessed face 58 and a projection plate 52c with the projection face 53 configure a guide structure to facilitate the yoke 52 and the magnet 50 to be turned around an axis perpendicularly to the magnetostatic wave propagation face.

4. 发明专利

JP2786189B2 失效
公开(公告)号：JP2786189B2
公开(公告)日：1998-08-13
申请号：JP11280487
申请日：1987-05-07
申请人： MITSUBISHI DENKI KK
发明人： ASAO HIDEKI , MYAZAKI MORYASU , ISODA YOJI , ISHIDA OSAMI
IPC分类号： H01P1/23 , H01P3/00

5. 发明专利

JPH1092641A STATIC MAGNETIC-WAVE DEVICE 失效
公开(公告)号：JPH1092641A
公开(公告)日：1998-04-10
申请号：JP26784996
申请日：1996-09-17
申请人： MURATA MANUFACTURING CO
发明人： FUJINO MASARU , FUJII TAKASHI , KUMATORIDANI MAKOTO , SEKIJIMA YUUTOKU , TAKAGI HIROSHI
IPC分类号： H01F10/24 , H01P1/215 , H01P1/23 , H01P3/00
摘要： PROBLEM TO BE SOLVED: To provide a static magnetic-wave device having improved magnetic characteristics. SOLUTION: A static magnetic-wave device is constituted of a garnet film for static magnetic-wave grown on a Gd3 Ga5 O12 substrate, Sm3 Ga5 O12 substrate, or Nd3 Ga5 O12 substrate. The composition of the material of the garnet film is expressed by A3-x Bx Fe5-y-z Zry Cz O12-x/2+y/2+z/2 ' where A, B, and C respectively represent one or more kinds of elements selected from among Y, La, Bi, Gd, Lu, and Sc, one ore more kinds of elements selected out of Ca and Sr, and one or more kinds of elements selected out of Ga and Al and x, y, and z are numerical values meeting the relations of 0

6. 发明专利

JPH1065409A MAGNETOSTATIC WAVE DEVICE 失效
公开(公告)号：JPH1065409A
公开(公告)日：1998-03-06
申请号：JP21876096
申请日：1996-08-20
申请人： MURATA MANUFACTURING CO
发明人： KAWACHI TETSUYA , TANAKA HIROAKI , NIIMURA SATORU , UMEGAKI TOSHIHITO
IPC分类号： H01P1/23 , H03G3/20
摘要： PROBLEM TO BE SOLVED: To provide the magnetostatic wave device having a magnetostatic wave filter used for a limiter by which a signal to control a gain of an automatic gain control amplifier deciding the level of the signal received by the magnetostatic wave filter is obtained without using a distributer and without an output loss. SOLUTION: A magnetostatic wave filter 2 used for the magnetostatic wave device 10 is provided with a end signal output terminal 2h in addition to a signal input terminal 2f and a 1st signal output terminal 2g and a signal from the 2nd signal output terminal 2h is used for gain control of an automatic gain control amplifier 1. No distributer is required by using a signal from the 2nd signal output terminal 2h and an output signal loss is eliminated. Furthermore, miniaturization and reduction in cost are attained simultaneously.

7. 发明专利

JPH09294005A S/N ENHANCER 失效
公开(公告)号：JPH09294005A
公开(公告)日：1997-11-11
申请号：JP13064396
申请日：1996-04-25
申请人： MURATA MANUFACTURING CO
发明人： MATSUZAKI HIROYASU , NISHIMURA SATORU
IPC分类号： H01P1/215 , H01P1/23
摘要： PROBLEM TO BE SOLVED: To provide the S/N enhancer in which the length of an attenuator occupied in a transmission line is reduced. SOLUTION: The S/N enhancer includes a first coplaner line 12a and a second coplaner line 12b. The first and second coplaner lines 12a, 12b include respectively enter conductors 14a, 14b. Nearly one end of the center conductors 14a, 14b is folded to be almost L-shape. A πtype resistance attenuator 30 is connected between the first and second coplaner lines 12a, 12b. The π type resistance attenuator 30 includes first and second chip resistors 18, 20a, 20b. Nearly one-side ends of the center conductors 14a-14b are connected by a first chip resistor 18. Moreover, one-end of the center conductor 14a and a ground electrode 16 are connected by a second chip resistor 20a and one-end of the center conductor 14b and the ground electrode 16 are connected by a second chip resistor 20b.

8. 发明专利

JPH09246810A DISTRIBUTER, SYNTHESIZER AND S/N ENHANCER 失效
公开(公告)号：JPH09246810A
公开(公告)日：1997-09-19
申请号：JP8090996
申请日：1996-03-08
申请人： MURATA MANUFACTURING CO , JAPAN BROADCASTING CORP
发明人： OKADA TAKEKAZU , NIIMURA SATORU , KANETANI FUMIO , TOBA AKIRA , NOMOTO TOSHIHIRO
IPC分类号： H01P1/215 , H01P1/23 , H03H2/00
摘要： PROBLEM TO BE SOLVED: To make the S/N enhancer small and to facilitate the impedance matching by including an input side transducer, an output side transducer, an input terminal and 1st and 2nd output terminals and connecting other end of the output transducer to ground. SOLUTION: When a signal including a main signal is given to an input terminal 24, an input signal passes through an input transducer 20 and is outputted from a 1st output terminal 26a. Furthermore, the main signal in the input signal is converted into a magnetostatic wave. The magnetostatic wave is propagated from the input transducer 20 to an output transducer 22, in which the wave is converted into a main signal and the main signal is outputted from a 2nd output terminal 26b. Thus, the distributer 10 distributes the input signal including the main signal into two signals at the S/N enhancer, the main signal in the distributed signal is converted into a magnetostatic wave and the magnetostatic wave is converted into the main signal. In this case, since no directional coupler is used, the S/N enhancer is easily made small.

9. 发明专利

JPH08204407A S/N ENHANCER 失效
公开(公告)号：JPH08204407A
公开(公告)日：1996-08-09
申请号：JP2864395
申请日：1995-01-24
申请人： MURATA MANUFACTURING CO , JAPAN BROADCASTING CORP
发明人： OKADA TAKEKAZU , NIIMURA SATORU , KANETANI FUMIO , ICHIGUCHI SHINICHIRO , NOMOTO TOSHIHIRO
IPC分类号： H01P1/218 , H01P1/23 , H01P7/00 , H03H2/00 , H04B1/10
摘要： PURPOSE: To provide an S/N enhancer capable of easily obtaining satisfactory enhancing characteristic. CONSTITUTION: This S/N enhancer 10 contains a magnetostatic wave element 30. The magnetostatic wave element 30 contains, for example, a stripe-like GGC substrate 32, and a YIG thin film 34 as a ferri-magnetic base body is formed on the main face on one side of the GGC substrate 32. The magnetostatic wave element 30 is arranged on four transducers 16a-16d. A first magnetostatic wave filter is constituted of two transducers 16a. 16b and one terminal side part 30a of the magnetostatic wave element 30. A second magnetostatic wave filter is constituted of other transducers 16c, 16d and the other terminal side part 30b of the magnetostatic wave element 30.

10. 发明专利

JPH08148906A MAGNETOSTATIC WAVE S/N ENHANCER 失效
公开(公告)号：JPH08148906A
公开(公告)日：1996-06-07
申请号：JP28571794
申请日：1994-11-18
申请人： TDK CORP
发明人： KURATA HITOYOSHI , OIDO ATSUSHI
IPC分类号： H01P1/215 , H01P1/23 , H01P5/18
摘要： PURPOSE: To provide a magnetostatic wave S/N enhancer for which signal attenuation is small and to reduce burdens on an amplifier by making a saturation power threshold value for generating the power limitation effect of a magnetostatic wave filter different between a first magnetostatic wave filter and a second magnetostatic wave filter. CONSTITUTION: Signals inputted from an input terminal 1 are divided with the power ratio of 1:1 by a directional coupler 2 and the divided signals are inputted to the magnetostatic wave filters 3 and 4. In this case, the saturation power threshold value of the magnetostatic wave filter 3 is set at -25dB and the saturation power threshold value of the magnetostatic wave filter 4 is set at -5dB. Thus, the magnetostatic wave filter 3 performs a nonlinear operation because the power lamination effect works for the signal components above the saturation power threshold value of the signals inputted to the magnetostatic wave filter 3 and the magnetostatic wave filter 4 performs a linear operation because the power limitation effect does not work for the signals inputted to the magnetostatic wave filter 4. The passing signals of the magnetostatic wave filter 4 are converted to an opposite phase and then, synthesized with the passing signals of the magnetostatic wave filter 3 with the power ratio of 1:1 in the directional coupler 7.

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