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公开(公告)号：EP1783854B1
公开(公告)日：2008-07-16
申请号：EP06023210.5
申请日：2006-11-08
Applicant: NTT DoCoMo Inc.
Inventor： Kawai, Kunihiro , Fukuda, Atsushi , Okazaki, Hiroshi , Narahashi, Shoichi
CPC classification number: H01P1/2039 , H01P1/2013 , H01P1/20381
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公开(公告)号：EP1909351A1
公开(公告)日：2008-04-09
申请号：EP07117701.8
申请日：2007-10-02
Applicant: Fujikura, Ltd.
Inventor： Guan, Ning
CPC classification number: H01P1/203 , H01P1/2013
Abstract: This invention provides a reflection-type bandpass filter for ultra-wideband wireless data communication (1), in which are provided, on the surface of a dielectric substrate (2), a center conductor (3) and side conductors (5a, 5b), provided on both sides of the center conductor, securing a prescribed distance between conductors with non-conducting portions (4a, 4b) intervening therebetween. The center conductor width or the distances between conductors, or both, are distributed non-uniformly in a length direction of the center conductor.
Abstract translation: 本发明提供一种用于超宽带无线数据通信的反射型带通滤波器（1），其中在介质基片（2）的表面上提供中心导体（3）和侧导体（5a，5b） ，其设置在中心导体的两侧，确保介于其间的非导电部分（4a，4b）之间的预定距离。 中心导体宽度或导体之间的距离或两者在中心导体的长度方向上不均匀地分布。
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公开(公告)号：EP1605540A1
公开(公告)日：2005-12-14
申请号：EP05104836.1
申请日：2005-06-03
Applicant: Thomson Licensing
Inventor： Lo Hine Tong, Dominique , Baron, Francois , Guguen, Charline , LE NAOUR, JEAN-YVES
IPC: H01P1/201
CPC classification number: H01P1/2016
Abstract: The present invention relates to a FINLINE type microwave band-pass filter comprising a waveguide 203 provided with an insulating substrate 204 placed in an E plane of the guide and comprising on at least one of the surfaces, conductive inserts 205 electrically connected to the internal surfaces of the guide which support the substrate and which determine by their dimensions and their positioning on the substrate a Chebyshev type filter response curve. The filter includes at least one cavity 207 in perpendicular short circuit to the substrate, the positioning and the dimensions of the cavity determining a transmission zero on the filter response curve for attenuating the frequencies situated around this zero.
Such a filter is used in particular in transmission terminals operating in the Ka band.-
公开(公告)号：EP1317014A4
公开(公告)日：2005-10-12
申请号：EP01943796
申请日：2001-06-20
Applicant: SHARP KK
Inventor： AMANO YOSHIHISA , YAMADA ATSUSHI
CPC classification number: H01P1/20381 , H01P1/2013 , H01P1/2053
Abstract: In a distributed constant filter, two open-circuited line resonators (8,9) of lambda /2 are capacitively coupled with each other by an electromagnetic field coupling section (13), while the input (2) and output (3) terminals are mutual-inductively coupled with each other by an electromagnetic field coupling section (10). The frequency of the attenuation pole can be set close to the center frequency, and the steepness of the filter response can be enhanced.
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公开(公告)号：EP1562255A1
公开(公告)日：2005-08-10
申请号：EP05002146.8
申请日：2005-02-02
Applicant: NTT DoCoMo, Inc.
Inventor： Koizumi, Daisuke c/o Int. Prop.Dpt.,NTT DoCoMo,Inc , Satoh, Kei c/o Intell. Prop.Dept.,NTT DoCoMo,Inc. , Narahashi,Shoichi c/o Int. Prop.Dpt,NTT DoCoMo,Inc
IPC: H01P1/201
CPC classification number: H01P1/2013
Abstract: A filter is provided which comprises a single dielectric, and a line conductor and a ground conductor disposed on the dielectric. The line conductor includes first and second line conductor sections having opposed portions defining an open gap therebetween to form a capacitive coupling section. The edge lines of the opposed portions of the first and second conductor sections defining the open gap therebetween are substantially elongated relative to the line width of the corresponding conductor sections. The thus constructed filter is capable of suppressing a variation in the normalized J-inverter value even if dimensional errors relative to the design specifications due to overetching or underetching involved during the manufacture.
Abstract translation: 提供了一种滤波器，其包括单个电介质，以及设置在电介质上的线路导体和接地导体。 线路导体包括第一和第二线路导体部分，其具有限定其间的开放间隙的相对部分，以形成电容耦合部分。 限定其间的开放间隙的第一和第二导体部分的相对部分的边缘线相对于相应的导体部分的线宽度基本上是细长的。 这样构成的滤波器即使即使在制造过程中涉及到的过蚀刻或未斜视的相对于设计规格的尺寸误差，也能够抑制归一化的J-逆变器值的变化。
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Patent Agency Ranking
公开(公告)号：EP1148550B1
公开(公告)日：2004-02-04
申请号：EP01302706.5
申请日：2001-03-23
Applicant: ALPS ELECTRIC CO., LTD.
CPC classification number: H05K9/006 , H01L23/66 , H01L24/48 , H01L24/49 , H01L2224/05599 , H01L2224/48091 , H01L2224/49175 , H01L2224/85399 , H01L2924/00014 , H01L2924/01057 , H01L2924/15153 , H01L2924/15165 , H01L2924/1517 , H01L2924/16195 , H01L2924/3025 , H01P5/107 , H01P7/06 , H01L2224/45015 , H01L2924/207 , H01L2224/45099
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公开(公告)号：EP1328997A1
公开(公告)日：2003-07-23
申请号：EP01987957.6
申请日：2001-10-11
Applicant: ROBERT BOSCH GMBH
Inventor： MUELLER-FIEDLER, Roland , WALTER, Thomas , ULM, Markus
CPC classification number: H01P1/2013 , H01H59/0009 , H01P1/127 , H01P3/003
Abstract: The invention relates to a device comprising a capacitor (200) for altering the impedance of a section of a coplanar waveguide, whereby the capacitance of the capacitor (200) can be altered. The capacitor (200) comprises, at least in part, a first electrically conductive connection (130), a second electrically conductive connection (131), and a third electrically conductive connection (121). The signal line (120) of the section of the waveguide is interrupted along a predetermined length (122). The first connection (130) connects the grounding lines (110, 111) of the waveguide, the second connection (131) also connects the grounding lines (110, 111) of the waveguide, and the third connection (121) connects both portions of the interrupted signal line (120).
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公开(公告)号：EP1191625A3
公开(公告)日：2003-05-14
申请号：EP01660173.4
申请日：2001-09-17
Applicant: Filtronic LK Oy
Inventor： Niiranen, Erkki , Vistbacka, Tapani
IPC: H01P1/201
CPC classification number: H01P1/205
Abstract: The invention relates to a high-pass filter realized in a conductive casing by means of mechanical structural elements, which filter is suitable for signal processing especially at microwave frequencies. In the casing (201, 202, 203) there are in series rigid conductive elements (2IN, 210, 220, 230, 2OUT) separated from each other. Between successive elements there is capacitance that can be adjusted within certain limits, if necessary. The insulating material between the elements is air or plastic, for example. At least some of the conductive elements involve a conductor (214, 224) less than half a wavelength long, short-circuited at the opposite end to the casing. This together with the casing connected to the signal ground provides a transmission line which, looking from the conductive element, is inductive at the operating frequencies. A signal path is thus provided in the filter with capacitance in the longitudinal direction and inductance in the transversal direction between each two capacitive elements. The structure is simple and sturdy, which means relatively good power handling capacity and reliability. In addition, the structure has few boundaries that may cause harmful intermodulation.
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公开(公告)号：EP0910875B1
公开(公告)日：2002-07-31
申请号：EP97925454.7
申请日：1997-05-05
Applicant: CTS Corporation
Inventor： VANGALA, Reddy, R.
CPC classification number: H01P1/2056
Abstract: A ceramic filter with a coplanar shield which has: a filter body (302) comprising a block of dielectric material having top (304), bottom (306) and side surfaces (308, 310, 312, 314), and having a plurality of metallized through holes (316) extending from the top (304) to the bottom (306) surfaces defining resonators; a mettalization layer substantially coating the bottom (306) and the side surfaces (306, 310, 312, 314), and the top surface (304) having a metallized pattern thereon defining a top pattern; intput-output pads (318); and a conductive shield (322) having standoff legs (324) which maintain the conductive shield at a predetermined height above the top pattern of the filter body, the standoff legs (324) are connected to a portion of the top pattern on the top surface of the filter at a desired distance from the side surface having the input-output pads.
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80.发明公开Half-wavelength resonator type high frequency filter 有权Hochfrequenzfilter mitHalbwellenlängenresonatoren
公开(公告)号：EP0961337A1
公开(公告)日：1999-12-01
申请号：EP99110304.5
申请日：1999-05-27
Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Inventor： Wada, Kouji , Awai, Ikuo , Ishizaki, Toshio
CPC classification number: H01P1/20381 , H01P1/2013
Abstract: A half-wavelength resonator type high frequency filter has N half-wavelength resonators (where N is an integer not smaller than 2); an input terminal; an output terminal; first matching part for matching the first of the resonators to the input terminal; second matching part for matching the N-th of the resonators to the output terminal; and (N-1) interstage coupling part for coupling the resonators with one another, and wherein excitation positions of the first of the resonators and the N-th of the resonators are displaced from the center positions of the respective resonators toward an end thereof, and at least one of the interstage coupling part is electrically connected to its associated resonators at positions other than both ends thereof.
Abstract translation: 半波长谐振器型高频滤波器具有N个半波长谐振器（其中N是不小于2的整数）; 输入端; 输出端子; 第一匹配部分，用于将第一谐振器与输入端匹配; 第二匹配部分，用于将第N个谐振器与输出端匹配; 和（N-1）级间耦合部分，用于将谐振器彼此耦合，并且其中第一谐振器和第N谐振器的激励位置从各个谐振器的中心位置向其端部偏移， 并且级间耦合部分中的至少一个在其两端以外的位置处电连接到其相关联的谐振器。
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