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公开(公告)号：JP2005223392A
公开(公告)日：2005-08-18
申请号：JP2004026539
申请日：2004-02-03
Applicant: Ntt Docomo Inc , 株式会社エヌ・ティ・ティ・ドコモ
Inventor： KOIZUMI DAISUKE , SATO KEI , NARAHASHI SHOICHI
CPC classification number: H01P1/2013
Abstract: PROBLEM TO BE SOLVED: To provide a coupling line, having improved robustness against the dimension error of a standardizing J inverter value which serves as a design parameter.
SOLUTION: The coupling line has a structure, in which the width of a void is widened and lines each contacting the void between the line conductors between both sides facing each other at a portion, where a void exists in the middle of the line conductor provided on a single substrate and the void divides the line conductor. By providing this configuration, the change in the standardized J inverter value can be suppressed, even if the dimensional errors of over-etching or under-etching occur in manufacturing the coupling lines, with respect to design specifications.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种耦合线，其具有相对于作为设计参数的标准化J逆变器值的尺寸误差的改进的鲁棒性。 解决方案：耦合线具有这样的结构，其中空隙的宽度被加宽，并且每个接触线路导体之间的两个侧面之间的线路之间的空隙在一部分处彼此面对的部分，其中空隙存在于 线导体设置在单个基板上，并且空隙划分线路导体。 通过提供这种配置，即使在制造连接线时发生过蚀刻或欠蚀刻的尺寸误差，也可以相对于设计规格来抑制标准化的J型逆变器值的变化。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005012457A
公开(公告)日：2005-01-13
申请号：JP2003173746
申请日：2003-06-18
Applicant: Murata Mfg Co Ltd , 株式会社村田製作所
Inventor： HIDAKA SEIJI , ABE MAKOTO
CPC classification number: H01P1/2016
Abstract: PROBLEM TO BE SOLVED: To provide a resonator that is miniaturized by changing to step impedance and has high Qo, and to provide a filter having the resonator and a communication device.
SOLUTION: On a dielectric substrate 1, a conductive film 10 is formed. The conductive film 10 has conductor openings APa, APb operating as an inductive region and a conductor opening Apc operating as a capacitive region. Contrarily, a resonant element 100, where a multiple step ring resonant element comprising a conductor line aggregate 2' is formed on a substrate 15, is composed and is mounted to the conductor openings APa, APb operating as the inductive region, thus composing the resonator having high Qo.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供通过改变为阶梯阻抗并具有高Qo而小型化的谐振器，并提供具有谐振器和通信装置的滤波器。 解决方案：在电介质基板1上形成导电膜10。 导电膜10具有作为感应区域工作的导体开口APa，APb和作为电容区域工作的导体开口Apc。 相反，在衬底15上形成包括导线集合体2'的多级环谐振元件的谐振元件100构成并安装在作为感应区工作的导体开口APa，APb上，从而构成谐振器 有高Qo。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2002246807A
公开(公告)日：2002-08-30
申请号：JP2001041847
申请日：2001-02-19
Applicant: MURATA MANUFACTURING CO
Inventor： OKADA TAKAHIRO , ISHIHARA YASUMASA , KATO HIDEYUKI
Abstract: PROBLEM TO BE SOLVED: To constitute a dielectric filter in which the influence of a resonance frequency in a TE mode is reduced and spurious characteristics are improved without changing any outside dimension. SOLUTION: Inner conductor forming holes 2a-2c with inner conductors 3a-3c respectively formed on their inside faces are formed from the upper face to the opposite lower face of an almost rectangular dielectric block 1 while inner conductor non-forming parts 4a-4c are formed near one openings. An outer conductor 5 is formed on the whole outer face of the dielectric block 1, and input and output electrodes 6 connected to the inner conductor non- forming parts 4a and 4c are formed so as to be isolated from the outer conductor 5. A recessed part 7 is formed on one opening of the inner conductor forming hole, and the outer conductor 5 is formed on the inner face.
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Patent Agency Ranking
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237.发明专利
公开(公告)号：JPH10294645A
公开(公告)日：1998-11-04
申请号：JP35157097
申请日：1997-12-19
Applicant: HUGHES AIRCRAFT CO
Inventor： DE LOS SANTOS HECTOR J
Abstract: PROBLEM TO BE SOLVED: To provide a frequency selectable active microwave notch filter not to generate the reduction of sensitivity. SOLUTION: This filter is provided with an amplifier 30 and photon band gap crystal 40 connected in a feedback loop between an input 32 and an output 34 of this amplifier 30, the photon band gap crystal 40 has one frequency band gap at least for practically attenuating the transmission of electromagnetic radiations, and the feedback loop enables the amplifier 30 to amplify more signals in the band gap than signals outside the band gap. The photon band gap crystal 40 is provided with a housing 46 for forming a waveguide cavity including facing terminal walls, and antenna 56 and 58 are provided while being protruded through these terminal walls into the cavity.
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公开(公告)号：JPH08298401A
公开(公告)日：1996-11-12
申请号：JP10099195
申请日：1995-04-25
Applicant: KOKUSAI ELECTRIC CO LTD
Inventor： BANO TATSUYA , AIDA TSUTOMU
IPC: H01P1/201
Abstract: PURPOSE: To attain tuning of frequency even when plural band elimination ranges are in existence in the transmission characteristic by providing the band elimination filter tuned to each frequency of plural band elimination ranges to one basic transmission line. CONSTITUTION: Plural inner conductors 12, 13 whose one-side terminal connects to ground are arranged in parallel with a basic transmission line 11. An interval between each inner conductor 12 and the line 11 is adjusted to obtain the band elimination filter 1 tuned to a frequency in a band elimination range. Similarly an interval between each inner conductor 13 and the line 11 is adjusted to obtain the band elimination filter 2. The filters 1, 2 having provision for the plural band elimination ranges are contained altogether in a case 3 and a connector 4 is fixed to the case. Thus, the plural inner conductors 12, 13 are arranged in parallel with the line 11 to allow the filters to be tuned to each frequency of several band elimination ranges. Thus, even when there are two elimination ranges or over in the transmission characteristic, each frequency is tuned by one elimination filter and the filter space is reduced.
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公开(公告)号：JPH04223701A
公开(公告)日：1992-08-13
申请号：JP41404390
申请日：1990-12-26
Applicant: UBE INDUSTRIES
Inventor： FUJIYAMA YOSHITADA , ONO TAKAMOTO , TAKASUGI MITSUNORI , HAYASHI SHOTARO
Abstract: PURPOSE:To decide the attenuation area to be the resonance frequency of dielectric resonators by grounding a capacitance in which the floating capacity of the external conductors of coaxial dielectric resonators are positively included when adjustement is executed in such a way that an attenuation feature is obtained with a necessary interruption frequency through the use of the coaxial dielectric resonators, to unequivocally adjust a passing area in a part. CONSTITUTION:The coaxial dielectric resonators 1A, 1B,... constituting a dielectric filter have the resonance frequencies in the necessary frequency area and ground the external conductors 3 through the necessary capacitance so that the pass area of the dielectric filter is decided with the resonance frequency as an attenuation value.
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