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    • 73. 发明专利
    • Balance filter circuit element, circuit board with the same and circuit module
    • 平衡滤波电路元件,电路板与电路模块
    • JP2010016767A
    • 2010-01-21
    • JP2008177059
    • 2008-07-07
    • Taiyo Yuden Co Ltd太陽誘電株式会社
    • KOSAKA TAKESHI
    • H01P5/10H01P1/205H01P1/212H01P7/08
    • PROBLEM TO BE SOLVED: To provide a balance filter circuit element which does not have a resonance point in a double wave of a signal frequency to be passed, and also to provide a circuit board and a circuit module, each having the filter.
      SOLUTION: By setting an electrode width of a central part A1 of a conductor pattern 122 constituting an unbalanced side resonance electrode narrower than an electrode width other than the central part, the position of a resonance point, which may be generated near a double wave, is shifted to a high frequency side without affecting such resonance point of a signal frequency to be passed, as a fundamental wave. Thus, a spurious signal of the double wave oscillated by an RF-IC connected to a balance filter circuit element, is sufficiently cut and communication quality is improved more than the prior arts.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种在要通过的信号频率的双波中不具有共振点的平衡滤波器电路元件,并且还提供一种电路板和电路模块,每个电路板和电路模块具有滤波器 。 解决方案:通过设置构成不平衡侧共振电极的导体图案122的中心部分A1的电极宽度比除中心部分之外的电极宽度窄的电极宽度,可以在 双波作为基波而被移动到高频侧而不影响要通过的信号频率的这种谐振点。 因此,连接到平衡滤波器电路元件的RF-IC振荡的双波的寄生信号被充分削减,并且通信质量比现有技术更好。 版权所有(C)2010,JPO&INPIT
    • 75. 发明专利
    • High-frequency band pass filter
    • 高频带通过滤器
    • JP2009253894A
    • 2009-10-29
    • JP2008102496
    • 2008-04-10
    • National Institute Of Information & Communication Technology独立行政法人情報通信研究機構
    • ISHIDA HITOSHI
    • H01P1/203H01P1/205H01P7/08
    • PROBLEM TO BE SOLVED: To provide a compact high-frequency band pass filter in a low loss and a narrow band in spite of an easy manufacture and a low cost.
      SOLUTION: The high-frequency band pass filter has a high-frequency circuit board for a dielectric provided with a ground layer to an underside thereof, a resonator on microstrip lines provided on the top face of the high-frequency circuit board and input-output lines electrically connected to the resonator. In the high-frequency band pass filter, the lengths of the two microstrip lines from the positions of the connections to input lines to the positions of the connections to output lines are equalized by making relationships among two lengths from the positions of the connections to the input lines to both opening ends of the microstrip lines and two lengths from the positions of the connections to the output lines to both opening ends of the microstrip lines complementary by using two hairpin-shaped microstrip lines as the approximately half wavelength of a pass central frequency while these opening ends are opposed mutually through a specified gap. The opening ends are electrically coupled mutually, and two matching frequencies are generated between two attenuation frequencies, thus obtaining band-pass characteristics.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:尽管制造容易且成本低,但是提供了低损耗和窄带的紧凑型高频带通滤波器。 解决方案:高频带通滤波器具有用于电介质的高频电路板,该电介质设置在其下侧的接地层,在设置在高频电路板的顶面上的微带线上的谐振器和 电连接到谐振器的输入 - 输出线。 在高频带通滤波器中,从连接到输入线的位置到连接到输出线的位置的两条微带线的长度通过从连接位置到 输入线到微带线的两个开口端,并且从连接到输出线的连接的位置到微带线的两个开口端的两个长度通过使用两个发夹形微带线作为通过中心频率的大约一半波长而互补 而这些开口端通过指定的间隙相互相对。 开口端电耦合,并且在两个衰减频率之间产生两个匹配频率,从而获得带通特性。 版权所有(C)2010,JPO&INPIT
    • 76. 发明专利
    • Dual-band bandpass resonator and dual-band bandpass filter
    • 双波段双波段共振器和双波段滤波器
    • JP2009225436A
    • 2009-10-01
    • JP2009018478
    • 2009-01-29
    • Ntt Docomo Inc株式会社エヌ・ティ・ティ・ドコモ
    • SATO KEINARAHASHI SHOICHI
    • H01P7/08H01P1/203
    • H01P1/2013H01P1/203H01P7/086
    • PROBLEM TO BE SOLVED: To accomplish a dual-band bandpass filter that has high flexibility in designing a total of four characteristic values, that is, the center frequency and bandwidth of the two pass bands, and also has a characteristic of substantially blocking unwanted signals in the bands other than the desired pass bands, and further is miniaturized.
      SOLUTION: The dual-band bandpass filter includes a plurality of dual-band bandpass resonators. The dual-band bandpass resonator constituted of: a central conductor having a central axis aligned with an input/output direction; a pair of grounding conductors; a central conductor short-circuit part; and a pair of stub conductors that, which are formed on a surface of a dielectric substrate. The pair of grounding conductors are disposed on the opposite sides of the central conductor with a space interposed therebetween. The central conductor short-circuit part short-circuits the pair of grounding conductors, and one end of the central conductor is connected to the central conductor short-circuit part. The pair of stub conductors are disposed in the spaces on the opposite sides of the central conductor symmetrically with respect to the central axis of the central conductor, extend at least partially parallel with the central conductor and are connected to the central conductor short-circuit part at one ends thereof.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了实现在设计总共四个特征值(即两个通带的中心频率和带宽)方面具有高灵活性的双频带通滤波器,并且还具有基本上 阻止除了期望的通带之外的频带中的不需要的信号,并进一步小型化。 解决方案:双频带通滤波器包括多个双频带通谐振器。 所述双频段带通谐振器由具有与输入/输出方向对准的中心轴的中心导体构成; 一对接地导体; 中心导体短路部分; 以及形成在电介质基板的表面上的一对短截线导体。 一对接地导体设置在中心导体的相对侧上,其间具有空间。 中心导体短路部分使一对接地导体短路,中心导体的一端连接到中心导体短路部分。 一对短截线导体配置在相对于中心导体的中心轴对称的中心导体的相对侧的空间中,至少部分地平行于中心导体延伸并连接到中心导体短路部分 在其一端。 版权所有(C)2010,JPO&INPIT
    • 77. 发明专利
    • Bandpass filter, and radio communication module and radio communication equipment using the same
    • BANDPASS滤波器,无线电通信模块和无线电通信设备
    • JP2009206545A
    • 2009-09-10
    • JP2008043880
    • 2008-02-26
    • Kyocera Corp京セラ株式会社
    • YOSHIKAWA HIROMICHI
    • H01P1/203H01P1/20H01P7/08
    • PROBLEM TO BE SOLVED: To provide a bandpass filter having an extremely wide passband with a required width, and to provide a radio communication module and radio communication equipment using the bandpass filter.
      SOLUTION: The bandpass filter includes: first and second ground electrodes 21, 22 arranged on the upper and lower surface of a laminate constituted by laminating a plurality of dielectric layers 11; a composite resonance electrode 26 that is arranged in a first interlayer, that is composed of a base part 27 of which the one end is grounded and a plurality of band-like projection parts 28a, 28b of which the one-ends are each connected to the other end of the base part 27 and which are arranged in parallel with each other, and that is allowed to be resonated by two frequencies; and an input coupling electrode 40a opposed to the input-stage projection part 28a in the composite resonance electrode 26 and electromagnetic-resonant-coupled with the projection part 28a and an output coupling electrode 40d opposed to the output-stage projection part 28b and electromagnetic-resonant-coupled with the projection part 28b, which are arranged in an interlayer different from the first interlayer. Accordingly, the bandpass filter having flat, low-loss and excellent passage characteristics over the whole passband can be easily obtained.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供具有所需宽度的非常宽的通带的带通滤波器,并提供使用带通滤波器的无线电通信模块和无线电通信设备。 带通滤波器包括:第一和第二接地电极21,22,布置在层叠多个电介质层11的层叠体的上表面和下表面上; 布置在第一中间层中的复合谐振电极26,其由一端接地的基部27和一端各自连接的多个带状突起部28a,28b 基部27的另一端彼此平行配置,并被两个频率谐振; 以及与复合谐振电极26中的输入级突起部28a相对并与突出部28a电磁谐振耦合的输入耦合电极40a和与输出级突起部28b相对的输出耦合电极40d, 与突出部28b谐振耦合,突出部28b布置在不同于第一夹层的夹层中。 因此,可以容易地获得在整个通带上具有平坦,低损耗和优良的通过特性的带通滤波器。 版权所有(C)2009,JPO&INPIT
    • 80. 发明专利
    • Resonance apparatus
    • 谐振装置
    • JP2009141875A
    • 2009-06-25
    • JP2007318610
    • 2007-12-10
    • Yokogawa Electric Corp横河電機株式会社
    • IWAOKA MITSURU
    • H01P7/08
    • PROBLEM TO BE SOLVED: To provide a resonance circuit continuously varying a resonant frequency over a wide range.
      SOLUTION: A resonance apparatus, which varies a resonant frequency in accordance with a control voltage, includes: an insulator with a liquid reservoir and a duct formed therein; a pair of grounded metal plates provided to hold the insulator therebetween and to face the duct; a liquid metal sealed in a part of the liquid reservoir and the duct; and an actuator for adjusting a length of the liquid metal sealed in the duct, wherein a strip line or a micro strip line is constituted of the duct and the metal plates.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供在宽范围内连续改变谐振频率的谐振电路。 解决方案:根据控制电压改变谐振频率的谐振装置包括:具有液体储存器和形成在其中的导管的绝缘体; 一对接地的金属板,用于将绝缘体夹在其间并面对导管; 密封在液体储存器和管道的一部分中的液体金属; 以及用于调节密封在管道中的液体金属的长度的致动器,其中带状线或微带线由管道和金属板构成。 版权所有(C)2009,JPO&INPIT