WO2018119825A1 - Filtre en mode tem et dispositif de communication - Google Patents

Filtre en mode tem et dispositif de communication Download PDF

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Publication number
WO2018119825A1
WO2018119825A1 PCT/CN2016/112895 CN2016112895W WO2018119825A1 WO 2018119825 A1 WO2018119825 A1 WO 2018119825A1 CN 2016112895 W CN2016112895 W CN 2016112895W WO 2018119825 A1 WO2018119825 A1 WO 2018119825A1
Authority
WO
WIPO (PCT)
Prior art keywords
resonator
tem mode
filter
mode filter
cavity
Prior art date
Application number
PCT/CN2016/112895
Other languages
English (en)
Chinese (zh)
Inventor
孙兴华
杨绍春
Original Assignee
深圳市大富科技股份有限公司
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
Application filed by 深圳市大富科技股份有限公司 filed Critical 深圳市大富科技股份有限公司
Priority to CN201680086400.6A priority Critical patent/CN109219904A/zh
Priority to PCT/CN2016/112895 priority patent/WO2018119825A1/fr
Publication of WO2018119825A1 publication Critical patent/WO2018119825A1/fr

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Classifications

    • 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
    • H01P1/201—Filters for transverse electromagnetic waves

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a TEM mode filter and a communication device.
  • a filter is used to select a communication signal to filter out clutter or interference signals outside the frequency of the communication signal.
  • the resonators used in the conventional filter technology are made of metal, and the space between the resonator and the cavity is filled with air medium.
  • the use of metal resonators to achieve the required specifications of the radio frequency the size of the cavity capacity will be relatively large, which is not conducive to the miniaturization of the filter.
  • the invention provides a TEM mode filter and a communication device, which can effectively reduce the volume of the cavity, thereby effectively reducing the volume and weight of the entire filter.
  • a technical solution adopted by the present invention is to provide a filter, comprising: a cover plate, a filter cavity and a resonator; wherein the cover plate covers the filter cavity to form a resonant cavity, and the resonator is disposed on Within the resonant cavity, the resonant cavity is at least partially filled with a dielectric material having a dielectric constant greater than a dielectric constant of air.
  • the resonator is a metal resonator
  • the dielectric material is filled between the metal resonator and the filter cavity.
  • the dielectric material is a solid material.
  • the dielectric material is in contact with an outer peripheral surface of the metal resonator and is spaced apart from an inner peripheral surface of the filter cavity.
  • the resonator is a dielectric resonator formed of the dielectric material, and a conductive layer is coated on a surface of the dielectric resonator.
  • the resonator is hollow.
  • the resonator is formed integrally or separately from the filter cavity.
  • a tuning screw is also included, the tuning screw being coupled to the cover plate and extending into the resonator to adjust the frequency of the resonator.
  • the tuning screw and the resonator are disposed coaxially with each other.
  • another technical solution adopted by the present invention is to provide a communication device including the above TEM mode filter, and the TEM mode filter is used for selecting a signal transmission and reception of the communication device.
  • the communication device is one of a simplexer, a duplexer, a splitter, a combiner, and a tower top amplifier.
  • the invention has the beneficial effects of providing a TEM mode filter and a communication device, which can be effectively filled by at least partially filling a dielectric material between a metal resonator and a filter cavity or by coating a conductive layer on a surface of the dielectric resonator. Reduce the volume of the cavity, which in turn reduces the size and weight of the entire filter.
  • FIG. 1 is a schematic cross-sectional view of a TEM mode filter according to a first embodiment of the present invention
  • FIG. 2 is a schematic perspective cross-sectional view of a TEM mode filter in accordance with a second embodiment of the present invention.
  • a dielectric material having a dielectric constant greater than that of air is at least partially filled between the metal resonator and the filter cavity.
  • a high dielectric constant solid dielectric material is added to the outside of the original metal resonator.
  • the original metal resonator is replaced by a high dielectric constant dielectric resonator, and a conductive layer is coated on the surface of the dielectric resonator.
  • FIG. 1 is a schematic cross-sectional view of a TEM mode filter according to a first embodiment of the present invention.
  • the TEM mode filter 10 includes a cover plate 11, a filter cavity 12, and a resonator 13. Further, the TEM mode filter 10 further includes a tuning screw 15.
  • the cover 11 covers the filter cavity 12 to form a resonant cavity 14 , and the resonator 13 is disposed in the resonant cavity 14 , and the resonant cavity 14 at least partially fills the dielectric material 16 .
  • the resonator 13 is a metal resonator and is hollow. Specifically, the resonator 13 is formed integrally or separately from the filter cavity 12, and the resonator 13 is integrally formed on the inner side of the bottom of the filter cavity 12, or the resonator 13 is an independently disposed component and is in the filter cavity.
  • the body 12 is fixedly connected by a fixing element.
  • a dielectric material 16 is filled between the metal resonator 13 and the filter cavity 12, and the dielectric material 16 is in contact with the outer peripheral surface of the metal resonator 13, and is spaced apart from the inner peripheral surface of the filter cavity 12.
  • the dielectric material 16 is a solid material including, but not limited to, ceramics such as barium titanate, zirconate, and zirconium titanate, and the dielectric constant of the dielectric material 16 is greater than the dielectric constant of air.
  • the greater the dielectric constant of the dielectric material 16 to be filled the smaller the volume of the dielectric material 16 is required, and the smaller the size and weight of the corresponding TEM mode filter 10.
  • the tuning screw 15 is coupled to the cover plate 11 and extends into the resonator 13, and the frequency of the resonator 13 is adjusted by varying the length of the tuning screw 15.
  • the tuning screw 15 and the resonator 13 are disposed coaxially with each other.
  • the volume of the cavity can be effectively reduced, thereby reducing the volume and weight of the entire filter.
  • a second embodiment of the present invention is different from the first embodiment in that at least part of the space filling dielectric constant between the metal resonator and the filter cavity in the first embodiment is greater than air.
  • the dielectric material of the second embodiment is replaced with a dielectric resonator having a high dielectric constant, and a conductive layer is coated on the surface of the dielectric resonator.
  • FIG. 2 is a schematic perspective cross-sectional view of a TEM mode filter according to a second embodiment of the present invention.
  • the TEM mode filter 20 includes a cover plate 21, a filter cavity 22, and a resonator 23. Further, the TEM mode filter 20 further includes a tuning screw 25.
  • the cover plate 21 covers the filter cavity 22 to form a resonant cavity 24, and the resonator 23 is disposed in the resonant cavity 24, and the resonant cavity 24 at least partially fills the dielectric material 26.
  • the resonator 23 is a dielectric resonator formed of a dielectric material and is hollow.
  • the dielectric material is a solid material including but not limited to ceramics such as barium titanate, zirconate, and zirconium titanate, and the dielectric constant of the dielectric material is greater than the dielectric constant of air.
  • the larger the dielectric constant of the dielectric material the smaller the volume of the resonator 23 is formed, and the smaller the volume of the corresponding TEM mode filter 20 is, which facilitates the implementation of the filter. Miniaturization.
  • the resonator 23 is formed integrally or separately from the filter cavity 22, and the resonator 23 is integrally formed on the inner side of the bottom of the filter cavity 22, or the resonator 23 is an independently disposed component and is in the filter cavity. 22 is fixedly connected by fixing elements.
  • the dielectric resonator 23 is coated with a conductive layer, such as a metal including but not limited to silver, on the upper surface 231 and the inner surface 232 as shown in FIG.
  • a conductive layer such as a metal including but not limited to silver
  • the tuning screw 25 is coupled to the cover plate 21 and extends into the resonator 23 to adjust the frequency of the resonator 23 by varying the length of the tuning screw 25.
  • the tuning screw 25 and the resonator 23 are disposed coaxially with each other.
  • the volume and weight of the filter can be effectively reduced, and the filter can be reduced. Its insertion loss.
  • the filter provided by the above embodiments can be applied to a communication system, such as a communication device, which can be a simplex, a duplexer, a splitter, a combiner, and a tower amplifier.
  • a communication device which can be a simplex, a duplexer, a splitter, a combiner, and a tower amplifier.
  • the communication device can also be applied to a radar system, which is not specifically limited in the present invention.
  • the filter is used to select a signal to and from the communication device.
  • the present invention provides a TEM mode filter and a communication device, which can effectively reduce the size and weight of the filter, and can also achieve the purpose of miniaturization of the filter.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

La présente invention concerne un filtre en mode TEM et un dispositif de communication. Le filtre en mode TEM comprend : une plaque de recouvrement, une cavité de filtre et un résonateur, la plaque de recouvrement recouvrant la cavité de filtre, formant une cavité résonante, le résonateur étant agencé dans la cavité résonante, au moins une partie de l'espace de la cavité résonante est remplie d'un matériau diélectrique, et la constante diélectrique du matériau diélectrique est supérieure à la constante diélectrique de l'air. Par le moyen mentionné ci-dessus, la présente invention permet d'obtenir un filtre en mode TEM et un dispositif de communication, qui réduisent efficacement le volume et le poids du filtre et permettent également d'obtenir une conception de miniaturisation du filtre.
PCT/CN2016/112895 2016-12-29 2016-12-29 Filtre en mode tem et dispositif de communication WO2018119825A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680086400.6A CN109219904A (zh) 2016-12-29 2016-12-29 一种tem模滤波器及通信设备
PCT/CN2016/112895 WO2018119825A1 (fr) 2016-12-29 2016-12-29 Filtre en mode tem et dispositif de communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/112895 WO2018119825A1 (fr) 2016-12-29 2016-12-29 Filtre en mode tem et dispositif de communication

Publications (1)

Publication Number Publication Date
WO2018119825A1 true WO2018119825A1 (fr) 2018-07-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/112895 WO2018119825A1 (fr) 2016-12-29 2016-12-29 Filtre en mode tem et dispositif de communication

Country Status (2)

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CN (1) CN109219904A (fr)
WO (1) WO2018119825A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022048158A1 (fr) * 2020-09-01 2022-03-10 华沣通信科技有限公司 Filtre contenant un fluide de remplissage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110113073A (zh) * 2019-05-16 2019-08-09 京信通信技术(广州)有限公司 介质poi

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6549092B1 (en) * 1999-10-04 2003-04-15 Murata Manufacturing Co. Ltd. Resonator device, filter, composite filter device, duplexer, and communication device
CN201946731U (zh) * 2010-12-17 2011-08-24 摩比天线技术（深圳）有限公司 谐振器及具有谐振器的滤波器
CN102377002A (zh) * 2010-08-19 2012-03-14 安徽信安通讯技术有限公司 混合模射频滤波器
CN104037484A (zh) * 2013-03-08 2014-09-10 中兴通讯股份有限公司 介质谐振器及介质滤波器
CN104170162A (zh) * 2013-11-18 2014-11-26 华为技术有限公司 谐振器、滤波器、双工器及多工器
CN204205010U (zh) * 2014-11-12 2015-03-11 深圳光启高等理工研究院 腔体滤波器
CN104466315A (zh) * 2014-12-08 2015-03-25 上海华为技术有限公司 横电磁模介质滤波器、射频模块及基站

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203218423U (zh) * 2013-04-16 2013-09-25 深圳光启创新技术有限公司 腔体滤波器
CN203260698U (zh) * 2013-04-16 2013-10-30 深圳光启创新技术有限公司 一种腔体滤波器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6549092B1 (en) * 1999-10-04 2003-04-15 Murata Manufacturing Co. Ltd. Resonator device, filter, composite filter device, duplexer, and communication device
CN102377002A (zh) * 2010-08-19 2012-03-14 安徽信安通讯技术有限公司 混合模射频滤波器
CN201946731U (zh) * 2010-12-17 2011-08-24 摩比天线技术（深圳）有限公司 谐振器及具有谐振器的滤波器
CN104037484A (zh) * 2013-03-08 2014-09-10 中兴通讯股份有限公司 介质谐振器及介质滤波器
CN104170162A (zh) * 2013-11-18 2014-11-26 华为技术有限公司 谐振器、滤波器、双工器及多工器
CN204205010U (zh) * 2014-11-12 2015-03-11 深圳光启高等理工研究院 腔体滤波器
CN104466315A (zh) * 2014-12-08 2015-03-25 上海华为技术有限公司 横电磁模介质滤波器、射频模块及基站

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022048158A1 (fr) * 2020-09-01 2022-03-10 华沣通信科技有限公司 Filtre contenant un fluide de remplissage

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