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    TIME DELAY FILTERS
    2.
    发明公开
    TIME DELAY FILTERS 审中-公开

    公开(公告)号：EP3391459A1

    公开(公告)日：2018-10-24

    申请号：EP16876852.1

    申请日：2016-12-16

    Applicant: Kumu Networks, Inc.

    Inventor： HAHN, Wilhelm Steffen ,  RIDDLE, Alfred ,  LANDI, Ernie

    IPC: H01P9/00 ,  H01P1/20 ,  H01P1/201 ,  H05K1/00

    CPC classification number: H03H7/32 ,  H01L2224/48195 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1775 ,  H03H2001/0085

    Abstract: A time delay filter comprising a substrate comprising a first surface and a second surface opposite the first surface; a first LC resonator coupled to the substrate and comprising a first coupling point, a first capacitive element electrically coupled between the first coupling point and the first conductive region, and a first inductive element coupled between the first coupling point and the first conductive region, and comprising a first and second inductor tap; and a second LC resonator coupled to the substrate and comprising a second coupling point, a second capacitive element electrically coupled between the second coupling point and the first conductive region, and a second inductive element electrically coupled between the second coupling point and the first conductive region wherein the system group delays a signal output at a second coupling point relative to a signal input at the first coupling point.

    FILTERING CIRCUIT WITH SLOT LINE RESONATORS
    3.
    发明授权
    FILTERING CIRCUIT WITH SLOT LINE RESONATORS 有权

    公开(公告)号：EP2924799B1

    公开(公告)日：2018-08-22

    申请号：EP15160543.3

    申请日：2015-03-24

    Applicant: Thomson Licensing

    Inventor： Louzir, Ali ,  Joshi, Chetan ,  Robert, Jean-Luc

    IPC: H01P1/201

    CPC classification number: H01P1/2016

    Abstract: The present invention relates to a filtering circuit comprising at least two slot line resonators (R1, R2) arranged side by side and realised on a dielectric substrate having a first face equipped with a conductive layer and a second parallel face, each of said at least two resonators comprising a slot line (3) etched in the conductive layer and folded according to a spiral pattern counting a plurality of turns, with a shape factor such that the slot line has parts noticeably parallel or concentric. According to embodiments of the invention, at least one turn of the spiral pattern of each of the resonators comprises at least one discontinuity (10), the discontinuities of said at least two slot line resonators being arranged in such a manner as to increase the electromagnetic coupling between said at least two slot line resonators.

    Dual-band bandpass resonator and dual-band bandpass filter
    6.
    发明公开
    Dual-band bandpass resonator and dual-band bandpass filter 有权
    双带通带谐振器和双带带通滤波器

    公开(公告)号：EP2093826A1

    公开(公告)日：2009-08-26

    申请号：EP09002237.7

    申请日：2009-02-18

    Applicant: NTT DoCoMo, Inc.

    Inventor： Satoh, Kei ,  Narahashi, Shoichi

    IPC: H01P1/201 ,  H01P7/08 ,  H01P1/203

    CPC classification number: H01P1/2013 ,  H01P1/203 ,  H01P7/086

    Abstract: A dual-band bandpass filter according to the present invention includes a plurality of dual-band bandpass resonators. The dual-band bandpass resonator includes a central conductor (11) having a central axis aligned with an input/output direction, a pair of grounding conductors (12), a central conductor short-circuit part (13) and a pair of stub conductors (14) that 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 (13) short-circuits the pair of grounding conductors, and one end of the central conductor is connected to the central conductor short-circuit part.

    Abstract translation: 根据本发明的双频带通滤波器包括多个双带带通谐振器。 双带带通谐振器包括具有与输入/输出方向对准的中心轴的中心导体（11），一对接地导体（12），中心导体短路部分（13）和一对短截线导体 （14），其形成在电介质基板的表面上。 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（13）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。

    WAVEGUIDE E-PLANE RF BANDPASS FILTER WITH PSEUDO-ELLIPTIC RESPONSE
    8.
    发明授权
    WAVEGUIDE E-PLANE RF BANDPASS FILTER WITH PSEUDO-ELLIPTIC RESPONSE 有权
    与PSEUDOELLIPTISCHEM响应波导E面射频带通滤波器

    公开(公告)号：EP1581980B1

    公开(公告)日：2009-03-18

    申请号：EP03814473.9

    申请日：2003-12-18

    Applicant: Thomson Licensing

    Inventor： LO HINE TONG, Dominique ,  CHAMBELIN, Philippe ,  GUGUEN, Charline

    IPC: H01P1/201 ,  H01P1/207

    CPC classification number: H01P1/2016 ,  H01P1/207

    Abstract: The invention relates to RF bandpass filters with pseudo-elliptic response. In a filter comprising a dielectric substrate 302 placed in E position in a rectangular waveguide 301 and comprising inserts 303-306 on one of the surfaces of the substrate are placed conductors linked electrically to the walls of the guide, and on the other surface of the substrate opposite these conducting inserts are placed electrically floating inserts that make it possible to determine zeros in the transmission curve of the filter. This yields a filter exhibiting a response curve of pseudo-elliptic type which improves the rejection of spurious frequencies without increasing the dimensions of the filter.

    Coplanar resonator and filter using the same
    9.
    发明公开
    Coplanar resonator and filter using the same 有权
    Koplanar Resonator和Filter mit einem derartigen Resonator

    公开(公告)号：EP1760823A1

    公开(公告)日：2007-03-07

    申请号：EP06018659.0

    申请日：2006-09-06

    Applicant: NTT DoCoMo INC.

    Inventor： Koizumi, Daisuke, c/o NTT DOCOMO, Inc. ,  Satoh, Kei, c/o NTT DOCOMO, Inc. ,  Narahashi, Shoichi, c/o NTT DOCOMO, Inc.

    IPC: H01P1/201

    CPC classification number: H01P1/2013

    Abstract: A coplanar resonator which is comprised of a dielectric substrate, a center conductor formed in the surface thereof, and a ground conductor formed so as to surround the same center conductor, wherein the same center conductor is comprised of a main line conductor 31, formed by extension in a rectilinear shape, and auxiliary line conductors 32a and 32b bifurcating from at least one end of the same main line conductor, folding back and being extended on both sides of the main line conductor.

    Abstract translation: 由介质基片，形成在其表面的中心导体和形成为围绕同一中心导体的接地导体构成的共面谐振器，其中同一中心导体由主线导体31构成，主导线31由 并且从同一主线导体的至少一端分叉的辅助线导体32a和32b折回并在主线导体的两侧延伸。

    Microwave filter
    10.
    发明公开
    Microwave filter 有权
    Mikrowellenfilter

    公开(公告)号：EP1564834A1

    公开(公告)日：2005-08-17

    申请号：EP05002143.5

    申请日：2005-02-02

    Applicant: NTT DoCoMo, Inc.

    Inventor： Satoh, Kei Intell.Prop.Dep. NTT DoCoMo,Inc. ,  Narahashi,Shoichi Intell.Prop.Dep. NTT DoCoMo,Inc. ,  Hirota, Tetsuo Intell.Prop.Dep. NTT DoCoMo,Inc. ,  Yamao, Yasushi Intell.Prop.Dep. NTT DoCoMo,Inc.

    IPC: H01P1/201 ,  H01P1/203

    CPC classification number: H01P1/20381 ,  H01P1/2013

    Abstract: A filter is provided which maintains a low insertion loss characteristic of a filter contained in a casing with a very simple construction that the internal wall of the casing is formed by a superconductor. A coplanar waveguide filter 22 comprises a dielectric substrate 1, a plurality of resonators 5a, 5b, 5c and 5d and input/output terminal sections 4a and 4b, each of which is formed by a center conductor 2 and ground conductors 3 a and 3b, both formed on the same surface of the dielectric substrate 1, with the ground conductors 3 a to 3d being formed on the opposite sides of and in parallel relationship with the center conductor 2. The filter 22 is contained within a casing 21 having an internal wall, the surface of which is formed with a layer of superconductor 23. By way of example, a high temperature superconductor such as lanthanum-, yttrium-, bismuth- or thallium-superconductor is deposited as a film on a substrate of a metal oxide material such as MgO, SrTiO 3 , LaGaO 3 , LaAlO 3 to provide a superconductor filmed substrate 25, which is applied to the internal surface of the casing 21. Electromagnetic power which is irradiated from the filter 22 does not produce a power loss when it impinges on the layer of superconductor 23 in its superconducting state, but is reflected therefrom to be absorbed by the filter 22, thus reducing the filter insertion loss.

    Abstract translation: 提供一种过滤器，其以非常简单的结构保持包含在壳体中的过滤器的低插入损耗特性，使得壳体的内壁由超导体形成。 共面波导滤波器22包括电介质基板1，多个谐振器5a，5b，5c和5d以及由中心导体2和接地导体3a和3b形成的输入/输出端子部分4a和4b， 两者都形成在电介质基板1的相同表面上，其中接地导体3a至3d形成在中心导体2的相对侧并与之平行。滤波器22被容纳在具有内壁 ，其表面形成有超导体层23.作为示例，将诸如镧，钇，铋或铊超导体的高温超导体作为膜沉积在金属氧化物材料的基板上 例如MgO，SrTiO 3，LaGaO 3，LaAlO 3，以提供施加到壳体21的内表面的超导薄膜基板25.从滤波器22照射的电磁功率在im 在其超导状态的超导体层23上进行平面化，但是由其反射以被过滤器22吸收，从而降低了过滤器插入损耗。

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