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    • 1. 发明授权
    • Dielectric filter, antenna duplexer
    • 介质滤波器,天线双工器
    • US06965284B2
    • 2005-11-15
    • US10220037
    • 2002-02-26
    • Tomoya MaekawaYasuhiro SugayaToru YamadaToshio Ishizaki
    • Tomoya MaekawaYasuhiro SugayaToru YamadaToshio Ishizaki
    • H01P1/203H01P1/213H01P11/00H03H7/01
    • H01P1/20345H01P1/2135H01P11/007
    • A dielectric filter includes resonator electrodes, an inter-stage coupling capacitor electrode, and an input/output coupling capacitor electrode on dielectric substrates, respectively. The resonator electrodes are electro-magnetically coupled to each other to form a tri-plate structure, are made of a metallic foil embedded in a resonator dielectric substrate. Another dielectric filter includes an upper shield electrode dielectric substrate, an inter-stage coupling capacitor dielectric substrate, a resonator dielectric substrate, and an input/output coupling capacitor dielectric substrate which are made of a composite dielectric material including a high-dielectric-constant material and a low-dielectric-constant material. The above described arrangement provides the dielectric filter with an improved Q factor of a resonator, a low loss, and a high attenuation.
    • 介质滤波器分别包括谐振器电极,级间耦合电容器电极和介电基片上的输入/输出耦合电容器电极。 谐振器电极彼此电磁耦合以形成三板结构,由嵌入在谐振器电介质基板中的金属箔制成。 另一个介质滤波器包括由包括高介电常数材料的复合介电材料制成的上屏蔽电极介质基板,级间耦合电容器介质基板,谐振电介质基板和输入/输出耦合电容器电介质基板 和低介电常数材料。 上述布置为介质滤波器提供了谐振器的改进的Q因子,低损耗和高衰减。
    • 5. 发明申请
    • Dielectric resonator, dielectric filter and method of producing the same, filter device combined to a transmit-receive antenna and communication apparatus using the same
    • 介质谐振器,介质滤波器及其制造方法,组合到发射 - 接收天线的滤波器装置和使用其的通信装置
    • US20050236103A1
    • 2005-10-27
    • US11148347
    • 2005-06-09
    • Yasuhiro SugayaTomoya MaekawaToru YamadaSeiichi Nakatani
    • Yasuhiro SugayaTomoya MaekawaToru YamadaSeiichi Nakatani
    • H01P1/203H01P11/00C09J5/00
    • H01P1/20345H01P11/007Y10T156/1052
    • A dielectric resonator includes a pair of dielectric substrates opposed to each other and resonator electrodes disposed between the pair of dielectric substrates. The resonator electrodes are disposed so as to be brought into contact with major surfaces of the pair of dielectric substrates, and a bonding layer is disposed around the resonator electrodes so as to bond the pair of dielectric substrates. The pair of dielectric substrates have been sintered in advance at sufficiently high temperature which is a dielectric having an fQ value at 1 GHz in the range of 3×103 to 1×105, and then achieve a high Q value as a filter. The pair of the substrates are provided with a surface roughness of a range of 0.1 to 2.0 μm, and flatness of 10 μm or less between both ends thereof to bring the resonant electrodes in close contact with the surfaces of the substrate. Such ceramic filters are used comfortably for a filter connecting a transmit-receive antenna to a transmitter and receiver, which can provide communication equipment having a good high frequency performance for cellular telephone systems.
    • 介质谐振器包括彼此相对的一对电介质基板和设置在该对电介质基板之间的谐振器电极。 谐振器电极设置成与一对电介质基板的主表面接触,并且在谐振器电极周围设置接合层,以便结合该对电介质基板。 预先将这对电介质基片预先烧成足够高的温度,该电介质具有3×10 3〜1×10 5范围内的1GHz的fQ值, 然后实现高Q值作为滤波器。 一对基板的两端之间的表面粗糙度为0.1〜2.0μm,平坦度为10μm以下,使谐振电极与基板的表面紧密接触。 这种陶瓷滤波器被舒适地用于将发射 - 接收天线连接到发射机和接收机的滤波器,其可以为蜂窝电话系统提供具有良好高频性能的通信设备。
    • 6. 发明授权
    • Electromagnetic wave analysis apparatus and design support apparatus
    • 电磁波分析装置及设计支持装置
    • US07642973B2
    • 2010-01-05
    • US11311992
    • 2005-12-20
    • Tomoya MaekawaTetsuyoshi OguraToru Yamada
    • Tomoya MaekawaTetsuyoshi OguraToru Yamada
    • G01R29/10G01R31/302
    • G01R29/0814G01R29/0871
    • A design support apparatus of the present invention includes the following: an antenna electromagnetic field distribution input portion that inputs data indicating an antenna electromagnetic field distribution in the vicinity of electronic equipment; a board near electromagnetic field distribution input portion that inputs data indicating a board near electromagnetic field distribution as unwanted radiation noise radiated from a board of the electronic equipment; and a correlation value generator that generates a distribution of correlation values showing a correlation between the antenna electromagnetic field and the board near electromagnetic field based on the antenna electromagnetic field distribution data and the board near electromagnetic field distribution data.
    • 本发明的设计支持装置包括:天线电磁场分布输入部,输入表示电子设备附近的天线电磁场分布的数据; 在电磁场分布输入部分附近的板,其将表示电磁场分布附近的板的数据输入作为从电子设备的板辐射的不必要的辐射噪声; 以及相关值发生器,其基于所述天线电磁场分布数据和所述基板附近的电磁场分布数据,生成表示所述天线电磁场与所述基板之间的电磁场附近的相关性的相关值的分布。
    • 7. 发明申请
    • Design support system and design method for circuit board, and noise analysis program
    • 电路板设计支持系统及设计方法,噪声分析程序
    • US20070079272A1
    • 2007-04-05
    • US11513267
    • 2006-08-31
    • Tomoya MaekawaToru YamadaTetsuyoshi Ogura
    • Tomoya MaekawaToru YamadaTetsuyoshi Ogura
    • G06F17/50
    • G06F17/5036G06F2217/82
    • A design support system for circuit board includes: a noise source extracting unit for extracting a source of unwanted radiation noise which is generated from a circuit board mounted on an electronic equipment; a noise characteristics input unit for inputting noise characteristics of the unwanted radiation noise which is emitted by the extracted noise source; a noise attenuation ratio input unit for inputting an attenuation ratio of the unwanted radiation noise which is emitted by the noise source and propagated to a feed point of an antenna; a correlation value calculation unit for calculating a correlation value between the noise characteristics and the attenuation ratio of the unwanted radiation noise; and a comparator unit for comparing the calculated correlation value with a predetermined allowable value, whereby avoiding malfunction of an electronic equipment due to interference of unwanted radiation noises generated from the particular electronic equipment into the circuit board via the antenna.
    • 一种用于电路板的设计支持系统包括:噪声源提取单元,用于提取从安装在电子设备上的电路板产生的不需要的辐射噪声源; 噪声特性输入单元,用于输入由所提取的噪声源发射的不需要的辐射噪声的噪声特性; 噪声衰减率输入单元,用于输入由噪声源发射并传播到天线的馈电点的不需要的辐射噪声的衰减比; 相关值计算单元,用于计算噪声特性与不需要的辐射噪声的衰减比之间的相关值; 以及比较器单元,用于将所计算的相关值与预定的允许值进行比较,由此由于由特定电子设备产生的不需要的放射线噪声经由天线到电路板中的避免电子设备的故障。
    • 8. 发明授权
    • Design support system and design method for circuit board, and noise analysis program
    • 电路板设计支持系统及设计方法,噪声分析程序
    • US07647034B2
    • 2010-01-12
    • US11513267
    • 2006-08-31
    • Tomoya MaekawaToru YamadaTetsuyoshi Ogura
    • Tomoya MaekawaToru YamadaTetsuyoshi Ogura
    • H04B1/10
    • G06F17/5036G06F2217/82
    • A design support system for circuit board includes: a noise source extracting unit for extracting a source of unwanted radiation noise which is generated from a circuit board mounted on an electronic equipment; a noise characteristics input unit for inputting noise characteristics of the unwanted radiation noise which is emitted by the extracted noise source; a noise attenuation ratio input unit for inputting an attenuation ratio of the unwanted radiation noise which is emitted by the noise source and propagated to a feed point of an antenna; a correlation value calculation unit for calculating a correlation value between the noise characteristics and the attenuation ratio of the unwanted radiation noise; and a comparator unit for comparing the calculated correlation value with a predetermined allowable value, whereby avoiding malfunction of an electronic equipment due to interference of unwanted radiation noises generated from the particular electronic equipment into the circuit board via the antenna.
    • 一种用于电路板的设计支持系统包括:噪声源提取单元,用于提取从安装在电子设备上的电路板产生的不需要的辐射噪声源; 噪声特性输入单元,用于输入由所提取的噪声源发射的不需要的辐射噪声的噪声特性; 噪声衰减率输入单元,用于输入由噪声源发射并传播到天线的馈电点的不需要的辐射噪声的衰减比; 相关值计算单元,用于计算噪声特性与不需要的辐射噪声的衰减比之间的相关值; 以及比较器单元,用于将所计算的相关值与预定的允许值进行比较,由此由于由特定电子设备产生的不需要的放射线噪声经由天线到电路板中的避免电子设备的故障。
    • 9. 发明申请
    • Electromagnetic wave analysis apparatus and design support apparatus
    • 电磁波分析装置及设计支援装置
    • US20060132118A1
    • 2006-06-22
    • US11311992
    • 2005-12-20
    • Tomoya MaekawaTetsuyoshi OguraToru Yamada
    • Tomoya MaekawaTetsuyoshi OguraToru Yamada
    • G01R31/00
    • G01R29/0814G01R29/0871
    • A design support apparatus of the present invention includes the following: an antenna electromagnetic field distribution input portion that inputs data indicating an antenna electromagnetic field distribution in the vicinity of electronic equipment; a board near electromagnetic field distribution input portion that inputs data indicating a board near electromagnetic field distribution as unwanted radiation noise radiated from a board of the electronic equipment; and a correlation value generator that generates a distribution of correlation values showing a correlation between the antenna electromagnetic field and the board near electromagnetic field based on the antenna electromagnetic field distribution data and the board near electromagnetic field distribution data.
    • 本发明的设计支持装置包括:天线电磁场分布输入部,输入表示电子设备附近的天线电磁场分布的数据; 在电磁场分布输入部分附近的板,其将表示电磁场分布附近的板的数据输入作为从电子设备的板辐射的不必要的辐射噪声; 以及相关值发生器,其基于所述天线电磁场分布数据和所述基板附近的电磁场分布数据,生成表示所述天线电磁场与所述基板之间的电磁场附近的相关性的相关值的分布。