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WO2018133335A1 - Structure d'orifice de couplage électrique, et filtre à cavité - Google Patents

Structure d'orifice de couplage électrique, et filtre à cavité Download PDF

Info

Publication number
WO2018133335A1
WO2018133335A1 PCT/CN2017/091069 CN2017091069W WO2018133335A1 WO 2018133335 A1 WO2018133335 A1 WO 2018133335A1 CN 2017091069 W CN2017091069 W CN 2017091069W WO 2018133335 A1 WO2018133335 A1 WO 2018133335A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
mounting end
cavity
column
port structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/091069
Other languages
English (en)
Chinese (zh)
Inventor
李世超
陈瑞斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Grentech Rf Communication Ltd
Original Assignee
Shenzhen Grentech Rf Communication Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710053075.XA external-priority patent/CN106785269B/zh
Priority claimed from CN201720091055.7U external-priority patent/CN206506001U/zh
Application filed by Shenzhen Grentech Rf Communication Ltd filed Critical Shenzhen Grentech Rf Communication Ltd
Publication of WO2018133335A1 publication Critical patent/WO2018133335A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/04—Fixed joints
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies

Definitions

  • the present invention relates to the field of radio frequency communication technologies, and in particular, to an electrically coupled port structure and a cavity filter.
  • an aspect of the present invention provides an electrical coupling port structure of a filter, which includes a connector, a connecting rod, a tap piece, a metal spacer, and a coupled resonant column.
  • the connecting rod is connected to the connector;
  • the tapping piece includes a first mounting end and a second mounting end, the first mounting end is connected to the connecting rod, and the second mounting end is connected to the coupling resonant column;
  • the coupled resonant column has a bottom cylindrical column at one end, and the column of the coupled resonant column is provided with a slot
  • the mouth groove extends from the mouth end of the coupled resonator column to the bottom portion, and the mouth groove can accommodate the second mounting end to extend into the inner center of the coupled resonator column;
  • the metal gasket is detachably clamped between the bottom portion and the second mounting end.
  • the connector is provided with an inner conductor, and one end of the connecting rod is provided with a central blind hole extending in the axial direction, and the inner conductor is opposite to the central blind hole of the connecting rod.
  • the fitting and fixing of the connector and the connecting rod are performed by welding.
  • the inner conductor is coaxial with a center line of the connecting rod.
  • the first connecting portion, the second connecting portion, and the third connecting portion are sequentially connected between the first mounting end and the second mounting end; the first connecting portion, the first connecting portion The second connecting portion and the third connecting portion form a U shape; the third connecting portion forms an "L" shape with the second mounting end, and the second mounting end is provided with a through hole.
  • the first mounting end and the second mounting end are connected by a plurality of bent portions.
  • a center boss is disposed at one end of the connecting rod and the tap piece, and the center boss is coaxial with a center line of the connecting rod.
  • one end of the connecting rod connected to the tap piece is provided with a central boss, the first mounting end is provided with a U-shaped groove, and the U-shaped groove is in the center boss After the snapping, the connecting rod and the tap piece are fixed by welding.
  • the metal gasket is a flat annular body having a thickness; the inner ring of the metal gasket is provided with a thread, and the outer diameter of the metal gasket is smaller than the coupled resonant column. Inner diameter.
  • the present invention further provides a cavity filter including a cavity, a cover plate mounted at the mouth end of the cavity, and as a preferred solution, the above-mentioned electrically coupled port structure,
  • the connector is mounted to a sidewall of the cavity, and the coupled resonator column is mounted to the interior of the cavity.
  • the cavity filter further includes a tuning screw, the tuning screw passes through a threaded hole in the cover plate and protrudes into an inner center of the coupled resonator column; the tuning screw passes the locking The nut adjusts to the depth of the coupled resonator column and maintains a distance from the tap piece and the metal washer.
  • the invention has the advantages of simple processing and manufacturing, saving space in the cavity to improve the single cavity Q value, simple assembly and higher reliability.
  • FIG. 1 is a cross-sectional view of a cavity filter provided with an electrically coupled port structure according to the present invention
  • FIG. 2 is a partial exploded view of a cavity of the cavity filter of FIG.
  • FIG. 3 is a schematic exploded view of a connector, a connecting rod and a tap piece in the cavity filter of FIG. 1; [0020] FIG.
  • FIG. 4 is a schematic structural view of the tap sheet of FIG. 3.
  • FIGS. 1 to 4 The markings of FIGS. 1 to 4: cavity 10, port mounting hole 15, connector 20, inner conductor 22, connecting rod 30, center boss 32, tap piece 40, first mounting end 41, U-shaped groove 411, first connecting portion 42, second connecting portion 43 and third connecting portion 45, second mounting end 47, through hole 49, metal spacer 50, silver plated screw 53, coupling resonant column 60, cover plate 70, waveform The washer 71, the lock nut 73, and the tuning screw 75.
  • the present embodiment provides a cavity filter 6 provided with an electrically coupled port structure.
  • the cavity filter 6 includes a cavity 10, an electrically coupled port structure, and a cover plate 70 mounted to the port end of the cavity.
  • the electrical coupling port structure is disposed at the receiving end and/or the transmitting end of the cavity 10, and includes a connector 20 mounted on an outer sidewall of the cavity 10 and a coupling component disposed inside the cavity 10.
  • the coupling component includes: a connecting rod 30, the tap 40, the metal spacer 50, and the coupled resonator 60.
  • the cavity 10 is provided with a port mounting hole 15 at the receiving end/transmitting end, and the connector 20 is correspondingly mounted to the port mounting hole 15 by screws.
  • the inner conductor 22 on the connector 20 is directed toward the interior of the cavity 10 through the port mounting aperture 15 and is coupled to the coupling assembly within the cavity 10.
  • the connecting rod 30 is a cylindrical conductor having a central blind hole extending axially at one end and a central boss 32 at the other end.
  • the central blind hole and the central boss 32 are both coaxial with the connecting rod 30.
  • the inner conductor 22 of the connector 20 is adapted to the central blind hole of the connecting rod 30, and the inner conductor 22 is fitted into the central blind hole for snap fit.
  • the embedded end of the inner conductor 22 is coaxial with the connecting rod 30.
  • Connecting rod 30 One end of the center blind hole is provided and the connector 20 is further fixed by welding.
  • the connecting rod 30 is provided with one end of the center boss 32 to be connected to the tap piece 40.
  • the tap piece 40 is coupled between the connecting rod 30 and the coupling resonator 60.
  • the connecting rod 30 is perpendicular to the coupled resonant column 60 .
  • the tap piece 40 is a bent-formed flat strip-like structure including a first connecting portion 42, a second connecting portion 43, and a third connecting portion 45 which are sequentially connected.
  • the first connecting portion 42, the second connecting portion 43, and the third connecting portion 45 are formed in a U shape.
  • the first connecting portion 42 has a first mounting end 41 at its end. In this embodiment, the first connecting portion 42 is coplanar with the first mounting end 41.
  • the first mounting end 41 is provided with a U-shaped groove 41 1 at the end to receive the central boss 32 of the connecting rod 30, and the connecting rod 30 and the tapping piece 40 are fixed by manually welding the center boss 32 and the U-shaped groove 411. together.
  • the U-shaped groove 411 has a sufficient depth to adjust the welding position of the first mounting end 41 and the connecting rod 30, thereby adjusting the positional relationship between the tap piece 40 and the connecting rod 30.
  • the third connecting portion 45 is approximately parallel to the first connecting portion 42, and in the present embodiment, the third connecting portion 45 is longer than the first connecting portion 42.
  • the end of the third connecting portion 45 is provided with a second mounting end 47, and the end of the second mounting end 47 extends away from the first mounting end 41 so as to be "L" shaped integrally with the third connecting portion 45.
  • the end of the second mounting end 47 defines a contact surface that is approximately parallel to the second connecting portion 43, and the second mounting end 47 is provided with a through hole 49.
  • the coupled resonator column 60 of the first cavity is disposed at the receiving end/transmitting end of the cavity 10, and the bottom portion is fixed to the cavity 10, and the whole is presented as a cylindrical column structure.
  • the column of the coupling resonator 60 is provided with a groove of a specific size. More specifically, the slot is vertically disposed from the top of the coupled resonator 60 to a position below or below the center of the coupled resonator 60.
  • the above-described mouth groove has a sufficient width to accommodate the second mounting end 47 extending into the inner center of the coupled resonator column.
  • the inner center of the coupling resonant column 60 is also mounted with a metal spacer 50 which is an oblate annular body having a thickness, the outer diameter of the metal spacer 50 being less than or equal to the inner diameter of the coupled resonant column 60.
  • the contact surface formed by the second mounting end 47 is fixed to the inner center of the coupling resonator 60 with the metal spacer 50.
  • the coupled resonant column 60 is provided with a threaded hole at the bottom, and the contact surface on the second mounting end 47 is in full contact with the metal spacer 50.
  • the silver plated screw 53 passes through the through hole 49 and the inner ring on the metal spacer 50 in sequence. , locking and fastening with the threaded hole of the coupled resonator column 60.
  • the cavity filter controls the electrical coupling port by providing a delaying platform inside the cavity.
  • the length of the delay For the limited internal space of the cavity, the design of the Yantai platform is undoubtedly the difficulty of processing and manufacturing, resulting in excessive production costs.
  • the cavity filter produced is not accurate and the reliability is degraded, which is not conducive to mass production.
  • the present invention provides a more convenient method of delay adjustment: in the production process, metal pads 50 of different thicknesses can be pre-made, after installing a combined cavity filter, according to each The actual delay of the individual cavity is adjusted by adjusting the thickness of the metal spacer 50 to adjust the length of the cavity port.
  • the tapping piece 40 is formed by bending the elastic sheet material and has a certain elasticity as a whole to facilitate the fixed connection with the metal gasket 50 of different thicknesses.
  • the cover plate 70 is provided with a threaded hole that is aligned with the coupled resonator 60 in the cavity 10.
  • the threaded hole in the cover 70 is fastened to the wave washer 71 and the lock nut 73 by means of a gland, and the wave washer 71 is defined between the lock nut 73 and the cover 70.
  • the coupled resonator column 60 has a cylindrical shape with one end opening, and the port end faces the cover plate 70.
  • the tuning screw 75 on the cover plate 10 extends from the port end of the coupling resonator 60 to the inner center of the coupling resonator 60 through a threaded hole in the cover plate 70.
  • the tuning screw 75 is provided with a thread matching the lock nut 73.
  • the tuning screw 75 can be freely adjusted to the depth of the inner center of the coupling resonator 60 by the lock nut 73, thereby adjusting the frequency of the entire cavity filter.
  • the tuning screw 75 is coaxial with the silver plated screw 53.
  • the tap piece 40 is connected to the first mounting end 41 and the second mounting end 47 by a U-shaped structure (the first connecting portion 42, the second connecting portion 43, and the third connecting portion 45).
  • the first mounting end 41 and the second mounting end 47 may be joined by other shapes, such as a structure having more bends.

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Abstract

La présente invention concerne une structure d'orifice de couplage électrique d'un filtre. La structure comprend un connecteur (20), une tige de connexion (30), un élément de prise (40), un joint métallique (50), et un résonateur à cylindre de couplage (60). La tige de liaison (30) est reliée au connecteur (20). L'élément de prise comprend une première extrémité d'installation (41) et une seconde extrémité d'installation (47), la première extrémité d'installation est reliée à la tige de connexion, et la seconde extrémité d'installation est reliée au résonateur à cylindre de couplage. Le résonateur à cylindre de couplage a un élément cylindrique tubulaire inférieur au niveau d'une extrémité, et comprend un évidement ouvert au niveau d'un corps principal de celui-ci. L'évidement ouvert s'étend d'une extrémité d'ouverture du résonateur à cylindre de couplage à la partie inférieure de celui-ci, et l'évidement ouvert reçoit la seconde extrémité d'installation s'étendant dans un centre intérieur du résonateur de cylindre de couplage. Le joint métallique est maintenu de manière amovible entre la partie inférieure et la seconde extrémité d'installation. La présente invention présente les avantages d'une fabrication simple, d'un espace-efficacité dans une cavité pour augmenter un facteur Q pour une cavité unique, d'un assemblage facile et pratique, et d'une fiabilité élevée.
PCT/CN2017/091069 2017-01-22 2017-06-30 Structure d'orifice de couplage électrique, et filtre à cavité Ceased WO2018133335A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201710053075.X 2017-01-22
CN201720091055.7 2017-01-22
CN201710053075.XA CN106785269B (zh) 2017-01-22 2017-01-22 一种电耦合端口结构及腔体滤波器
CN201720091055.7U CN206506001U (zh) 2017-01-22 2017-01-22 一种电耦合端口结构及腔体滤波器

Publications (1)

Publication Number Publication Date
WO2018133335A1 true WO2018133335A1 (fr) 2018-07-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/091069 Ceased WO2018133335A1 (fr) 2017-01-22 2017-06-30 Structure d'orifice de couplage électrique, et filtre à cavité

Country Status (1)

Country Link
WO (1) WO2018133335A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021079292A1 (fr) * 2019-10-22 2021-04-29 Telefonaktiebolaget Lm Ericsson (Publ) Port de connecteur d'émission/réception de filtre à micro-ondes

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Publication number Priority date Publication date Assignee Title
KR200413974Y1 (ko) * 2006-01-10 2006-04-14 주식회사 에이스테크놀로지 방향 고정식 공진기
CN101073178A (zh) * 2004-10-19 2007-11-14 动力波技术瑞典股份公司 滤波器
JP2009218662A (ja) * 2008-03-07 2009-09-24 Panasonic Corp フィルタ装置
CN101834334A (zh) * 2010-05-07 2010-09-15 摩比天线技术（深圳）有限公司 一种同轴腔体滤波器耦合方法及其耦合端口
CN102306860A (zh) * 2011-06-27 2012-01-04 京信通信系统（中国）有限公司 腔体器件及其谐振通道连接端口耦合结构
CN202495562U (zh) * 2012-03-22 2012-10-17 深圳市大富科技股份有限公司 一种腔体滤波器
CN203013895U (zh) * 2012-11-23 2013-06-19 京信通信系统（中国）有限公司 三通道腔体器件及其端口合路结构
CN105024118A (zh) * 2015-08-17 2015-11-04 四川天邑康和通信股份有限公司 一种新型宽带滤波器抽头
CN106207342A (zh) * 2016-08-30 2016-12-07 广东通宇通讯股份有限公司 一种腔体滤波器
CN106785269A (zh) * 2017-01-22 2017-05-31 深圳市国人射频通信有限公司 一种电耦合端口结构及腔体滤波器

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101073178A (zh) * 2004-10-19 2007-11-14 动力波技术瑞典股份公司 滤波器
KR200413974Y1 (ko) * 2006-01-10 2006-04-14 주식회사 에이스테크놀로지 방향 고정식 공진기
JP2009218662A (ja) * 2008-03-07 2009-09-24 Panasonic Corp フィルタ装置
CN101834334A (zh) * 2010-05-07 2010-09-15 摩比天线技术（深圳）有限公司 一种同轴腔体滤波器耦合方法及其耦合端口
CN102306860A (zh) * 2011-06-27 2012-01-04 京信通信系统（中国）有限公司 腔体器件及其谐振通道连接端口耦合结构
CN202495562U (zh) * 2012-03-22 2012-10-17 深圳市大富科技股份有限公司 一种腔体滤波器
CN203013895U (zh) * 2012-11-23 2013-06-19 京信通信系统（中国）有限公司 三通道腔体器件及其端口合路结构
CN105024118A (zh) * 2015-08-17 2015-11-04 四川天邑康和通信股份有限公司 一种新型宽带滤波器抽头
CN106207342A (zh) * 2016-08-30 2016-12-07 广东通宇通讯股份有限公司 一种腔体滤波器
CN106785269A (zh) * 2017-01-22 2017-05-31 深圳市国人射频通信有限公司 一种电耦合端口结构及腔体滤波器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021079292A1 (fr) * 2019-10-22 2021-04-29 Telefonaktiebolaget Lm Ericsson (Publ) Port de connecteur d'émission/réception de filtre à micro-ondes
US12191550B2 (en) 2019-10-22 2025-01-07 Telefonaktiebolaget Lm Ericsson (Publ) Microwave filter port subassembly comprising a connector with a pin attached to a connector seat which turns within a chassis

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