CN107056278A - Ceramic dielectric resonator preparation technology is used in the communication of TM moulds - Google Patents

Ceramic dielectric resonator preparation technology is used in the communication of TM moulds Download PDF

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Publication number
CN107056278A
CN107056278A CN201710003314.0A CN201710003314A CN107056278A CN 107056278 A CN107056278 A CN 107056278A CN 201710003314 A CN201710003314 A CN 201710003314A CN 107056278 A CN107056278 A CN 107056278A
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sintering
moulds
microwave
communication
dielectric resonator
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吴娟英
肖练平
陈功田
何艳红
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CHENZHOU GONGTIAN ELECTRONIC CERAMICS TECHNOLOGY Co Ltd
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CHENZHOU GONGTIAN ELECTRONIC CERAMICS TECHNOLOGY Co Ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
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    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
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    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
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    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract

The present invention relates to a kind of TM moulds communication ceramic dielectric resonator preparation technology.Applied in the microwave device such as dielectric resonator, wave filter and oscillator and GPS geo-location system in satellite communication and GSM.The manufacture raw material of the microwave-medium ceramics contains：Barium monoxide（BaO）, titanium dioxide（TiO2）, zinc oxide（ZnO）And niobium pentaoxide（Nb2O5）And trace doped additive cupric oxide（CuO）, the component such as manganese oxide (MnO)；Said components are fired into microwave-medium ceramics by the solid phase reaction process of dispensing, mixing and ball milling, granulation, shaping, dress alms bowl, dumping and sintering.The present invention is with low sintering temperature, energy-conserving and environment-protective, high-k, high quality factor and stable resonant frequency temperature characterisitic.

Description

Ceramic dielectric resonator preparation technology is used in the communication of TM moulds
Technical field
The present invention relates to a kind of TM moulds communication ceramic dielectric resonator preparation technology, the resonator applications are defended in L-band Star communicates and the microwave member device such as dielectric resonator, wave filter and oscillator and GPS geo-location system in GSM In part.
Background technology
At present, with China's Space Science and Technology, the fast development of satellite communication, multiwave fixed broadcast will be formed at that time logical Believe satellite, dedicated broadcast satellite, direct broadcasting satellite, mobile broadcast satellite, moving communication satellite and special GPS global locations, safety Aeronautical satellite.And further the increasing to transmission bandwidth demand of the data service based on IP operation, the L-band of longer wavelength Development and application increasingly become emphasis of concern.Also drive to corresponding microwave resonator, wave filter, shaken simultaneously Swing the demand of the related microwave device such as device, microwave capacitors.It is S, L, C, Ku ripple that commonly used frequency is broadcasted in satellite communication Section, has high dielectric constant for the microwave-medium ceramics requirement applied to L-band（35~45）, high quality factor it is stable Resonant frequency temperature characterisitic and small volume, cheap etc..
BaTiO3, BaTi4O9And ZnNb2O6Material is a kind of titanate of excellent performance, columbate microeave ceramics, by mixing Miscellaneous and other means can be obtained with suitable and adjustable dielectric constant, high quality factor and well stable resonant frequency Temperature characterisitic.BaTiO in the prior art3, BaTi4O9And ZnNb2O6It is general to be prepared using two step process of calcining, calcination process institute Need temperature high, energy consumption is big, manufacturing cost is high.
The content of the invention
The technical problems to be solved by the invention are：A kind of TM moulds communication ceramic dielectric resonator preparation technology is provided, It has low sintering temperature, high-k, high quality factor and stable resonant frequency temperature characterisitic.It is applied to L ripples In section dielectric resonator, wave filter, oscillator, GPS global locations, safety navigation system, small volume can be made cheap.
Technical scheme to be solved by this invention is as follows：Ceramic dielectric resonator preparation technology is used in a kind of TM moulds communication, is made Make in raw material and contain：Barium monoxide（BaO）, titanium dioxide（TiO2）, zinc oxide（ZnO）And niobium pentaoxide（Nb2O5）And it is micro Dope Additive component；It is characterized in that:The trace doped additive is manganese oxide (MnO), cupric oxide (CuO) component, each group Point the percentage by weight of content be：
Barium monoxide 40%~50%；Titanium dioxide 40%~46%；
Zinc oxide 4%~10%；The % of niobium pentaoxide 5%~10；
The micro % of additive manganese oxide 0.3%~0.45；The % of cupric oxide 0.0%~0.3；
Said components are fired into by the solid phase reaction process of dispensing, mixing and ball milling, granulation, shaping, dress alms bowl, dumping and sintering Microwave-medium ceramics, then the ceramics after sintering are subjected to Excircle machining and end face polishing, paint silver layer；
Its manufacture method is：
1. powdered barium dioxide, titanium dioxide, zinc oxide, niobium pentaoxide and trace doped additive are first pressed into component It is required that dispensing, is put into the barrel of ball mill stirring ball-milling 10-12 hours；
2. by the slurry drying-granulating of stirring ball-milling：The 20%PVA aqueous solution of addition powder weight carries out spraying after stirring and made Grain；
3. dry-pressing formed, compressing briquetting pressure 700-1600MPa, and fill alms bowl；
4. 2~4 hours are incubated at 1240-1280 DEG C, it is humorous with ceramic dielectric that dumping sintering once completes i.e. obtained TM moulds communication Shake device；
5. the ceramics after sintering are subjected to Excircle machining and end face is polished, paint silver layer.
The BaTiO that the present invention is prepared using oxide with additive mixing solid reaction process3, BaTi4O9And ZnNb2O6It is micro- Crystal, and add low and function admirable the microwave-medium ceramics of uniform small grains, the porosity made from trace doped additive. Good microwave property can be obtained in the range of the addition of each additive.And internal sources cost is low, can further it strengthen With the competitiveness of external microwave ceramics, accelerate the extensive application of domestic microwave ceramics.
Compared with prior art, the invention has the characteristics that：
1）The formula composition of the present invention does not contain the heavy metal components such as lead, chromium, mercury, i.e., the present invention is to provide a kind of environment friendly microwave Media ceramic.Meet the pollution-free requirement of environmental protection.And meet the lead-free standard and waste electrical equipment time of the newest appearance of the European Community Receive the RHOS and WEEE of mark strict standard requirement.It can be applied in the product of high frequency field；Product can be exported To any country in the world；
2）One-step technology is optimized to by traditional step process of calcining two（Save calcination process）Substantially reduce manufacturing cost.The party Method technique is simple, it is easy to which industrial automation is produced, and material property is stable；
3）By 1300-1500 DEG C traditional of sintering process, less than 1280 DEG C are dropped to, the further reduction of sintering temperature has more The greater advantages of energy-conservation；
4）Had a distinct increment in performance：Conventional art formula only has 3000-4000 in dielectric constant 45-65, the Q value of L-band, humorous Vibration frequency temperature coefficient is more than ± more than 10PPm, and material prescription of the invention is up in dielectric constant 35-45, the Q value of L-band More than 5000, temperature coefficient of resonance frequency is less than within ± 2PPm；
5）The present invention can communicate the pass of the electronic component such as resonator, wave filter and oscillator as L-band environment friendly microwave Key core material is used, and is widely used in mobile communication, satellite communication, GPS（GPS）, Bluetooth technology with And WLAN（WLA）Deng modern communicationses industry, with essential industry application value.
Brief description of the drawings
Fig. 1 is temperature and resonant frequency relation property tendency chart.
Fig. 2 is resonant frequency and quality factor figure.
。
Embodiment
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings：
Contain composition in Environment-friendlymicrowave microwave dielectric ceramic for L wave band, manufacture raw material：Barium monoxide（BaO）Titanium dioxide（ TiO2）, Zinc oxide（ ZnO）And niobium pentaoxide（Nb2O5）And trace doped additive component；It is characterized in that:The micro additive In also contain manganese oxide (MnO), the proportioning and manufacture method of cupric oxide (CuO) micro additive, table 1 provides each embodiment Data, table 2 provides the performance of each embodiment.
Table 1：
Table 2：The main performance of each specification resonator of TM moulds
Fig. 1~2 sum up the variation tendency of formula and performance, conveniently adjustment can be formulated, performance is micro- required for obtaining Ripple media ceramic.
Temperature in Fig. 1 represents resonant frequency in -40 DEG C~+90 DEG C anaplasias with resonance frequency shift relation property tendency chart Change, resonant frequency is inclined within 0.5MHZ for 1.850GHZ medium frequency（Tf ＜ 3ppm/ DEG C）, frequency stability characteristics are fine. Tf above represents temperature coefficient of resonance frequency：△ f represent resonance frequency deviation；T represents temperature.
The graph of relation of quality factor q value and sintering temperature in Fig. 2, illustrates optimal sintering temperature on 1280 DEG C of left sides The right side, and have wider sintering range again.And the media ceramic is adapted to low-temperature sintering, sintering temperature should not be too high.

Claims (1)

1. contain in a kind of TM moulds communication ceramic dielectric resonator preparation technology, manufacture raw material：Barium monoxide, titanium dioxide, oxygen Change zinc and niobium pentaoxide and trace doped additive component；It is characterized in that:The trace doped additive is manganese oxide, oxygen Change copper component, the percentage by weight of the content of each component is：
Barium monoxide 40%~50%；Titanium dioxide 40%~46%；
Zinc oxide 4%~10%；The % of niobium pentaoxide 5%~10；
The micro % of additive manganese oxide 0.3%~0.45；The % of cupric oxide 0.0%~0.3；
Said components are fired into by the solid phase reaction process of dispensing, mixing and ball milling, granulation, shaping, dress alms bowl, dumping and sintering Microwave-medium ceramics, then the ceramics after sintering are subjected to Excircle machining and end face polishing, paint silver layer；
Its manufacture method is：
1. powdered barium dioxide, titanium dioxide, zinc oxide, niobium pentaoxide and trace doped additive are first pressed into component It is required that dispensing, is put into the barrel of ball mill stirring ball-milling 10-12 hours；
2. by the slurry drying-granulating of stirring ball-milling：The 20%PVA aqueous solution of addition powder weight carries out spraying after stirring and made Grain；
3. dry-pressing formed, compressing briquetting pressure 700-1600MPa, and fill alms bowl；
4. 2~4 hours are incubated at 1240-1280 DEG C, it is humorous with ceramic dielectric that dumping sintering once completes i.e. obtained TM moulds communication Shake device；
5. the ceramics after sintering are subjected to Excircle machining and end face is polished, paint silver layer.
CN201710003314.0A 2017-01-04 2017-01-04 Ceramic dielectric resonator preparation technology is used in the communication of TM moulds Pending CN107056278A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736124A (en) * 2018-04-03 2018-11-02 苏州市协诚五金制品有限公司 A kind of preparation process based on Ceramic Dielectric Filter
CN110698194A (en) * 2019-11-06 2020-01-17 苏州博恩希普新材料科技有限公司 Microwave dielectric ceramic with layered structure and preparation method thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736124A (en) * 2018-04-03 2018-11-02 苏州市协诚五金制品有限公司 A kind of preparation process based on Ceramic Dielectric Filter
CN108736124B (en) * 2018-04-03 2020-11-10 苏州市协诚五金制品有限公司 Preparation process based on ceramic dielectric filter
CN110698194A (en) * 2019-11-06 2020-01-17 苏州博恩希普新材料科技有限公司 Microwave dielectric ceramic with layered structure and preparation method thereof
CN110698194B (en) * 2019-11-06 2022-05-06 苏州博恩希普新材料科技有限公司 Microwave dielectric ceramic with layered structure and preparation method thereof

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