公开(公告)号：US06285957B1

公开(公告)日：2001-09-04

申请号：US09045125

申请日：1998-03-20

申请人： Yoshirou Tanaka ,  Shinichi Ohtsu ,  Makoto Mukai

发明人： Yoshirou Tanaka ,  Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G06F9455

CPC分类号： G06F17/5036 ,  G01R31/002 ,  G06F2217/36

摘要： An apparatus and method are provided to calculate the strength of an electromagnetic field radiated from an electric device according to a moment method, wherein the moment method is based on integral equations derived from electromagnetic equations. The apparatus and method include a setting unit to interactively set a name of a two-wire cable arranged in the electric device and coordinates of the two-wire cable at a cable inlet, a cable outlet, and way points in the electric device, the way points being prepared as and when required to bend the two-wire cable between the cable inlet and the cable outlet. Further, the apparatus and method include library unit corresponding to cable names, respectively, and storing attributes of a corresponding cable comprising of the name, type, characteristic impedance, and structural data of the two-wire cable. A generation unit is provided to generate a moment-method model of the two-wire cable according to the attributes of the two-wire cable read out of the at least one library unit specified by the name of the two-wire cable set by the setting unit and the coordinates of the two-wire cable at the cable inlet, cable outlet, and way points set by the setting unit. A calculation unit calculates the strength of the electromagnetic field radiated from the electric device according to the moment-method model of the two-wire cable and the moment method.

摘要翻译： 提供一种装置和方法，用于根据力矩方法计算从电气装置辐射的电磁场的强度，其中力矩方法基于从电磁方程导出的积分方程。 该装置和方法包括：设置单元，用于交互地设置布置在电气设备中的双线电缆的名称，并且电线设备中的电缆入口，电缆出口和通路点处的双线电缆的坐标， 当需要时，双线电缆在电缆入口和电缆出口之间弯曲而准备好。 此外，该装置和方法分别包括对应于电缆名称的库单元，并且存储由双线电缆的名称，类型，特性阻抗和结构数据组成的对应电缆的属性。 提供生成单元，以根据从由至少一个库单元读出的两线电缆的属性生成双线电缆的力矩模型，该单元由由两线电缆组的名称指定 设定单位和两线电缆在电缆入口，电缆出口和设定单位设定的路点的坐标。 计算单元根据双线电缆的力矩模型和力矩法计算从电气设备辐射的电磁场的强度。

公开(公告)号：US6083266A

公开(公告)日：2000-07-04

申请号：US13071

申请日：1998-01-26

申请人： Shinichi Ohtsu ,  Makoto Mukai

发明人： Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G01R29/08 ,  G01R31/00 ,  G06F17/11 ,  G06F17/50 ,  G06F19/00 ,  G06Q50/00 ,  G06Q50/04 ,  G06F17/10

CPC分类号： G01R31/001 ,  G06F17/5018

摘要： A simulation apparatus for simulating the current flowing through elements of an electronic apparatus using the moment method based on reaction matching and able to achieve high speed simulation processing, comprising a segmenting means for segmenting the electronic apparatus to be analyzed into elements, a calculating means for calculating a mutual impedance between segmented elements of the electronic apparatus, assuming that a triangle function current flows through the monopoles, by using an approximation equation of the mutual impedance between monopoles, expressed by a polynomial of the power of k, derived by exp(-jkr) which is approximated by multiplication of exp(-jkr.sub.0) and a Taylor expansion of exp[-jk(r-r.sub.0)] (where j is an imaginary number, k is a wave number, r is the distance between monopoles, and r.sub.0 is a representative distance between monopoles), and a simulating means, by using the calculated mutual impedances between elements, for finding the current flowing through the elements of the electronic apparatus in accordance with the moment method.

摘要翻译： 一种仿真装置，用于使用基于反应匹配的力矩法来模拟电子装置的电流流动，并且能够实现高速模拟处理，包括用于将待分析的电子装置分割成元件的分割装置，用于 计算电子设备的分段元件之间的互阻抗，假设三角函数电流流过单极子，通过使用通过由exp（ - ）导出的k的幂的多项式表示的单极子之间的互阻抗的近似方程， jkr），其通过exp（-jkr0）的乘法和exp [-jk（r-r0）]的泰勒展开近似（其中j是虚数，k是波数，r是单极子之间的距离，和 r0是单极子之间的代表性距离）和模拟装置，通过使用所计算的元件之间的互阻，来找到流过th的电流 电子装置的e元件按照时刻法。

公开(公告)号：US06499004B1

公开(公告)日：2002-12-24

申请号：US09216982

申请日：1998-12-21

申请人： Shinichi Ohtsu ,  Makoto Mukai

发明人： Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G06F760

CPC分类号： G05B17/02 ,  G06F17/5036

摘要： Solving simultaneous equations of the moment method defining relationships between a mutual impedence between elements of an electronic apparatus, a wave source, and an electric current flowing in each element so as to simulate an electric current, provided with a unit for calculating the mutual impedance at a sampling frequency and calculating approximation coefficients, when expressing the mutual impedance by approximation expressions in terms of exponents and exponent powers, from the calculated values and sampling frequency; a unit for forming the simultaneous differential equations by setting the approximation coefficients and initial value with respect to the simultaneous differential equations derived by performing a Fourier transform on the simultaneous equations of the moment method in which the approximation expressions are substituted; and a unit for calculating the electric current in the time domain flowing through the specified element by solving the simultaneous differential equations formed.

摘要翻译： 求解定义电子装置的元件间的相互阻抗，波源和流过每个元件的电流之间的关系的时刻方法，以便模拟电流，该方法设置有用于计算互阻抗的单位 当从计算值和采样频率表示通过指数和指数幂的近似表达式的互阻抗时，采样频率和计算近似系数; 用于通过对近似表达式被替代的力矩方法的联立方程进行傅里叶变换得到的同步微分方程式来设定近似系数和初始值来形成同步微分方程的单元; 以及通过求解形成的同步微分方程来计算流过指定元件的时域中的电流的单元。

公开(公告)号：US06456949B1

公开(公告)日：2002-09-24

申请号：US09614129

申请日：2000-07-11

申请人： Takashi Yamagajo ,  Kenji Nagase ,  Shinichi Ohtsu ,  Makoto Mukai

发明人： Takashi Yamagajo ,  Kenji Nagase ,  Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G06F1700

CPC分类号： G06F17/5036

摘要： A mesh processor divides a target device into a plurality of patches. A mutual impedance calculator computes a mutual impedance between the patches based on previously computed analytic solutions of a quadruple integration under the condition that the patches are rectangular in shape and are parallel or perpendicular to each other. Finally, an electromagnetic field intensity calculator calculates electromagnetic field intensity based on the computed mutual impedance.

摘要翻译： 网格处理器将目标设备划分成多个补丁。 互阻抗计算器基于先前计算出的四重积分解析解，在贴片呈矩形并且彼此平行或垂直的条件下，计算贴片之间的互阻抗。 最后，电磁场强度计算器基于所计算的互阻抗计算电磁场强度。

公开(公告)号：US06185517B2

公开(公告)日：2001-02-06

申请号：US09017927

申请日：1998-02-03

申请人： Shinichi Ohtsu ,  Makoto Mukai

发明人： Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G06G748

CPC分类号： G01R29/08 ,  G06F17/5018 ,  G06F17/5036 ,  G06F2217/16

摘要： An electromagnetic field intensity computing apparatus for computing electromagnetic field intensity of an electric circuit device in a moment method obtains according to the electric current distribution an electric current of a ground layer and models a transmission line, ground layer, dielectric portion, etc. to be analyzed. When a plate to be analyzed is divided into a plurality of patches, the regularity in given structure data is automatically extracted to compute the mutual impedance among a portion of patches and apply the computation result to other portions. When elements to be analyzed meet the conditions that the electric length of the elements is short and the elements are distant from each other, the mutual impedance can be computed in an approximation obtained under various conditions. Furthermore, approximating a portion near a pigtail portion of a coaxial cable using a polygon allows a vertical electric current to be properly connected to each unit.

摘要翻译： 用于以瞬时法计算电路装置的电磁场强度的电磁场强度计算装置根据电流分布获得接地层的电流，并对传输线，接地层，电介质部分等进行建模 分析 当要分析的板被分成多个块时，自动提取给定结构数据的规则性，以计算一部分补丁之间的互阻抗，并将计算结果应用于其他部分。 当要分析的元件满足元件的电长度短并且元件彼此远离的条件时，可以在各种条件下获得的近似计算互阻抗。 此外，使用多边形近似同轴电缆的尾纤部分附近的部分允许垂直电流适当地连接到每个单元。

公开(公告)号：US5835979A

公开(公告)日：1998-11-10

申请号：US864697

申请日：1997-05-28

申请人： Motozane Hiraki ,  Makoto Mukai ,  Shinichi Ohtsu ,  Masaki Ogawa

发明人： Motozane Hiraki ,  Makoto Mukai ,  Shinichi Ohtsu ,  Masaki Ogawa

IPC分类号： H05K1/02 ,  H05K3/46 ,  H01B11/06

CPC分类号： H05K1/0228 ,  H05K1/0216 ,  H05K1/0245 ,  H05K2201/09672 ,  H05K2201/097

摘要： A wiring pattern includes first halves, each of which is a first half of a corresponding one of one or more intervals into which the wiring pattern is divided, and second halves, each of which is a second half of a corresponding one of the one or more intervals, wherein an electromagnetic field generated by the first half is canceled by an electromagnetic field generated by the second half.

摘要翻译： 布线图形包括前半部分，其中的每一个是布线图案被分割成的一个或多个间隔中的对应的一个的第一半部分，第二半部分是其中的一个或多个相应的一个的第二半部分 更多的间隔，其中由前半部分产生的电磁场由第二半部分产生的电磁场消除。

公开(公告)号：US06879942B1

公开(公告)日：2005-04-12

申请号：US09282425

申请日：1999-03-31

申请人： Kenji Nagase ,  Shinichi Ohtsu ,  Makoto Mukai ,  Takeshi Kishimoto ,  Sekiji Nishino

发明人： Kenji Nagase ,  Shinichi Ohtsu ,  Makoto Mukai ,  Takeshi Kishimoto ,  Sekiji Nishino

IPC分类号： G01R29/08 ,  G06F17/12 ,  G06F17/50 ,  G06F19/00 ,  G06F17/10 ,  G06F7/60

CPC分类号： G06F17/5036

摘要： An apparatus for calculating immunity from a radiated electromagnetic field which makes possible high-speed simulation of the electric current flowing through an electronic apparatus due to a radio wave radiated from an antenna, and a method and a storage medium storing programs used for the same which divides a radio wave radiated from an antenna into a carrier wave, upper sideband wave, and lower sideband wave, and uses the moment method to simulate the effect of the radio wave on an electronic apparatus by calculating the mutual impedance for one frequency component out of the above three frequency components and using that mutual impedance to solve the simultaneous equations under the moment method so as to calculate the electric current flowing through the electronic apparatus.

摘要翻译： 一种用于从辐射电磁场计算抗扰度的装置，其使得由于从天线辐射的无线电波而流过电子装置的电流可能高速模拟，以及存储用于其的程序的方法和存储介质， 其将从天线辐射的无线电波分解为载波，上边带波和下边带波，并且使用力矩方法通过计算一个频率分量输出的互阻力来模拟无线电波对电子设备的影响 的上述三个频率分量，并使用该相互阻抗来求解瞬时方法下的联立方程，以计算流过电子设备的电流。

公开(公告)号：US5940310A

公开(公告)日：1999-08-17

申请号：US969659

申请日：1997-11-13

申请人： Shinya Yamaguchi ,  Tomoyuki Nakao ,  Shinichi Ohtsu ,  Makoto Mukai

发明人： Shinya Yamaguchi ,  Tomoyuki Nakao ,  Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G01R29/08 ,  G01R31/00 ,  G06F17/50 ,  G06F9/455

CPC分类号： G06F17/5036 ,  G06F17/5018 ,  G01R31/001 ,  G06F2217/78

摘要： A device accurately calculates the strength of an electromagnetic field radiated from an electric circuit apparatus having a data receiving unit, and extractor, a model generator, and a calculator. The data receiving unit receives structural data related to the electric circuit apparatus. The extractor exacts, from the received data, structural data related to a dielectric between a power source layer and a ground layer of a multilayer printed board. The generator refers to the structural data on the multilayer printed board, divides the power source layer and the ground layer into corresponding meshes of metal patches, vertically extends first and second conductive patches from the sides of the metal patches so that the conductive patches are not in contact with one another, arranges a capacitor between each pair of the first and second conductive patches, divides selected metal patches of the power source and ground layers to form two triangle patches, and arranges a noise source between the apexes of the triangle patches, thereby producing a model of the multilayer printed board. The calculator calculates the strength of an electromagnetic field radiated from the electric circuit apparatus according to the model of the multilayer printed board.

摘要翻译： 一种装置精确地计算从具有数据接收单元的电路装置和提取器，模型发生器和计算器辐射的电磁场的强度。 数据接收单元接收与电路装置相关的结构数据。 提取器根据接收到的数据确定与多层印刷电路板的电源层和接地层之间的电介质相关的结构数据。 发电机是指多层印刷电路板上的结构数据，将电源层和接地层分成金属片的相应网格，从金属贴片的侧面垂直延伸第一和第二导电贴片，导电贴片不会 彼此接触，在每对第一和第二导电贴片之间布置电容器，分割电源和接地层的所选金属贴片以形成两个三角形贴片，并且在三角形贴片的顶点之间布置噪声源， 从而制造多层印刷电路板的模型。 计算机根据多层印刷电路板的型号计算从电路装置辐射的电磁场的强度。

公开(公告)号：US5926377A

公开(公告)日：1999-07-20

申请号：US971901

申请日：1997-11-17

申请人： Tomoyuki Nakao ,  Shinya Yamaguchi ,  Makoto Mukai ,  Shinichi Ohtsu

发明人： Tomoyuki Nakao ,  Shinya Yamaguchi ,  Makoto Mukai ,  Shinichi Ohtsu

IPC分类号： H05K1/00 ,  H05K1/02 ,  H05K1/16 ,  H05K3/40 ,  H05K3/46 ,  H05K1/03

CPC分类号： H05K1/162 ,  H05K1/0227 ,  H05K1/0231 ,  H05K1/023 ,  H05K1/0298 ,  H05K2201/0187 ,  H05K2201/093 ,  H05K2201/09309 ,  H05K2201/09663 ,  H05K2201/10022 ,  H05K2201/10446 ,  H05K2201/10636 ,  H05K3/403 ,  Y02P70/611

摘要： A multilayer printed board has at least a signal layer, a power source layer, and a ground layer that are formed one upon another with insulation material being interposed among the layers. The board is capable of reducing radio waves to be emitted from the board.The board is provided with capacitors that are continuously or discretely formed at the edges of an overlapping pattern of the power source layer and ground layer, to pass a high-frequency current from the power source layer to the ground layer, thereby reducing the emission of radio waves.

摘要翻译： 多层印刷电路板至少具有彼此形成的信号层，电源层和接地层，绝缘材料插入在层之间。 该板能够减少从电路板发出的无线电波。 电路板设置有电容器，其连续或离散地形成在电源层和接地层的重叠图案的边缘处，以将高频电流从电源层传递到接地层，从而减少 无线电波。

公开(公告)号：US06182023B2

公开(公告)日：2001-01-30

申请号：US09017667

申请日：1998-02-03

申请人： Shinichi Ohtsu ,  Makoto Mukai

发明人： Shinichi Ohtsu ,  Makoto Mukai

IPC分类号： G06F1750

CPC分类号： G01R29/08 ,  G06F17/5018 ,  G06F17/5036 ,  G06F2217/16

摘要： An electromagnetic field intensity computing apparatus for computing electromagnetic field intensity of an electric circuit device in a moment method obtains according to the electric current distribution an electric current of a ground layer and models a transmission line, ground layer, dielectric portion, etc. to be analyzed. When a plate to be analyzed is divided into a plurality of patches, the regularity in given structure data is automatically extracted to compute the mutual impedance among a portion of patches and apply the computation result to other portions. When elements to be analyzed meet the conditions that the electric length of the elements is short and the elements are distant from each other, the mutual impedance can be computed in an approximation obtained under various conditions. Furthermore, approximating a portion near a pigtail portion of a coaxial cable using a polygon allows a vertical electric current to be properly connected to each unit.