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      Microwave Dielectric Ceramic

      • MICROWAVE DIELECTRIC CERAMIC
      • MICROWAVE DIELECTRIC CERAMIC
      • MICROWAVE DIELECTRIC CERAMIC
      MICROWAVE DIELECTRIC CERAMICMICROWAVE DIELECTRIC CERAMICMICROWAVE DIELECTRIC CERAMIC

      MICROWAVE DIELECTRIC CERAMIC

      • Specifications:NPO
      • Product description: WMEC-MICROWAVE DIELECTRIC CERAMIC
      • INQUIRY

      Microwave dielectric ceramics (MWDC) is used in the microwave band (mainly UHF, SHF band, 300MHz ~ 300GHz) as ceramic dielectric materials and complete one or more functional circuits, at home and abroad in recent years on the research field of microwave dielectric material with a hot direction. This is mainly to adapt to the development needs of microwave mobile communications.


      Microwave dielectric ceramics
      The utility model is mainly used for microwave components such as resonators, filters, dielectric antennas, dielectric wave guides and the like. Can be used in mobile communications, satellite communications and military radar, etc.. With the development of science and technology change rapidly, the rapid increase of information quantity, and people's requirements for wireless communication, satellite communication and satellite broadcast television microwave communication system has become the inevitable trend of the development of communication technology.


      Application of microwave materials in civil field
      This makes the microwave materials and the gradually increasing demand in the civilian side, such as mobile phone, car phone, cordless phone, cellular mobile communication and satellite broadcast television and other new applications. In mobile phones, for example, in 2004 China's annual sales of 64 million mobile phones, and China's mobile phone market will grow at an annual rate of 20%, in the next year will reach sales of 100 million units. It can be seen that the microwave dielectric ceramics have great development space and market in the commercial application.

      (L) miniaturization
      (high dielectric constant R). It is well known that the miniaturization, high stability and low cost of microwave devices are the integration of microwave circuits. In the process of microwave circuit integration, the metal waveguide has realized the integration of planar microstrip, and the microwave tube has realized miniaturization. However, because of the volume and the weight of various metal resonators in the microwave circuit, it is difficult to integrate with the microstrip circuit. It is known that the size of the resonator is inversely proportional to the square root of the dielectric constant of the dielectric material. Therefore, the larger the dielectric constant of the dielectric material, the smaller the dielectric ceramic block and the smaller the size of the resonator. Therefore, microwave dielectric ceramics with high dielectric constant material is conducive to miniaturization of microwave dielectric filter, the filter with microstrip line microwave tube, a microwave integrated circuit hybrid, the device size reached millimeter, its price is much lower than the metal cavity. General requirements >1O.


      high stability
      (close to zero frequency temperature coefficient f). The working temperature of the communication device cannot be fixed. If the resonant frequency of the microwave dielectric material changes with the temperature, the carrier signal of the filter will drift at different temperatures, which will affect the performance of the equipment. This requires that the resonance frequency of the material can not change too much with the temperature. The actual temperature range is approximately 40 DEG -+100 DEG C, in this range, the frequency temperature coefficient of material f is not more than l0ppm/ DEG C. At present, the temperature coefficient of microwave dielectric ceramics can be used as high as 0 ppm/, which can achieve high stability and high reliability.

      Low loss
      (high quality factor Q). One of the important requirements of the filter is the low insertion loss and the dielectric loss of the microwave dielectric material is one of the main factors that affect the dielectric filter insertion loss. Q value of microwave dielectric material is inversely proportional to dielectric loss tand. The larger the Q value, the lower the insertion loss of the filter.


      Application of microwave dielectric ceramics
      At present, microwave dielectric ceramics has been in portable mobile phone, car phone, cordless telephone, satellite TV receiver, military radar etc. is used widely in manufacturing microwave dielectric filter and resonator, is playing an increasingly important role in miniaturization, modern communication tools integration process.


      Patent technology of dielectric ceramics
      1, alkali metal electrode multilayer ceramic capacitor dielectric material and preparation method thereof
      2, PTFE ceramic composite material surface modification method
      3, high dielectric constant low loss microwave dielectric ceramics
      4, high dielectric constant microwave dielectric ceramics and preparation method thereof
      5, a high dielectric constant microwave dielectric ceramics
      6, low loss microwave dielectric ceramics
      7, high dielectric constant microwave dielectric ceramics
      8, a low loss microwave dielectric ceramics
      9, microwave multilayer ceramic capacitor medium and its manufacturing method
      10, low temperature medium microwave dielectric materials for sintered multilayer ceramic capacitors
      11, high frequency mixed multiphase dielectric ceramic materials
      12, lead based microwave dielectric ceramics and manufacturing method thereof
      13, ceramic filter media
      14, microwave dielectric ceramics
      15, coating on ceramic filter medium corrosion resistance of aluminum melt glaze
      16, microwave oven magnetron tube high voltage ceramic capacitor medium
      17, microwave dielectric ceramics and its preparation method 2
      18, high frequency dielectric ceramic composition and preparation process
      19, a high voltage ceramic capacitor medium
      20, high quality factor microwave ceramic medium and its manufacturing method
      21, high dielectric constant, high stability, low loss ceramic dielectric material and its manufacturing method
      22, a kind of light foamed ceramic dielectric ball and its manufacturing method
      23, near zero frequency temperature coefficient perovskite type microwave dielectric ceramics and preparation method thereof
      24, high performance low temperature sintered high frequency dielectric ceramics
      25, high voltage ceramic capacitor medium manufacturing method
      26, a method for preparing high dielectric constant microwave dielectric ceramics
      27, microwave ceramic medium and its manufacturing method
      28, the production process of small group of living water with ceramic particles as medium
      29, ceramic grinding medium bead body
      30, dielectric ceramic composition 2
      31, high dielectric constant low temperature sintering microwave dielectric ceramics and its preparation method
      32, a dielectric ceramic and its preparation method
      33, microwave ceramic dielectric column resonance test fixture
      34, barium strontium titanate and cordierite glass ceramic composite material preparation method
      35, dielectric constant low temperature sintering microwave dielectric ceramics and its preparation method
      36, microwave dielectric ceramics and its preparation method
      37, a method for the preparation of cordierite based glass ceramic dielectric material for multilayer inductor
      38, high frequency thermal stability ceramic dielectric material and preparation method thereof
      39, high frequency high dielectric constant microwave dielectric ceramics and its processing method
      40, dielectric ceramic powder, ceramic chip and laminated ceramic capacitor and manufacturing method thereof
      41, a low temperature sintered solid solution microwave dielectric ceramic material
      42, microwave dielectric ceramics and its preparation method
      43, microwave dielectric ceramic composition
      44, low temperature sintering multielement multiphase composite microwave dielectric ceramics and its preparation method
      45, dielectric ceramics
      46, a method for preparing zinc silicate based glass ceramic dielectric material for multilayer inductor
      47, dielectric ceramic composition
      48, the filter with high end of the band with improved dielectric properties of ceramic filter
      49, ceramic dielectric material and its preparation method and method for producing ceramic capacitor
      50, dielectric ceramic composition and laminated ceramic component using the same
      51. Preparation of near end formed transparent ceramic laser medium
      52. Preparation of near end formed transparent ceramic laser medium
      53, anti reducing dielectric ceramic powder and its preparation method and method for preparing multilayer ceramic capacitor
      54, high temperature and thermal stability of Titanium Barium neodymium ceramic dielectric material and multilayer chip ceramic capacitor
      55, anti reducing thermal compensation ceramic dielectric material and ceramic capacitor made thereof
      56, dielectric ceramic composition and capacitor using the same
      57, barium titanate powder and its preparation method and evaluation method, dielectric ceramic and laminated ceramic capacitor
      58, zinc magnesium titanate ceramic dielectric material and the resulting ceramic capacitor
      59, super low temperature sintering ceramic dielectric material, its preparation method and the obtained capacitor
      60, a method for the preparation of a thin dielectric multilayer chip ceramic capacitor
      61, low temperature sintered dielectric ceramic composition and multilayer ceramic chip capacitor using the same
      62, titanium barium series ceramic dielectric material and capacitor
      63, low frequency fine crystal ceramic capacitor dielectric material preparation method
      64, dielectric ceramic composition
      65, dielectric ceramic composition and ceramic capacitor
      66, fine grain high dielectric ceramic capacitor dielectric material and preparation method thereof
      67, low temperature sintered low loss dielectric ceramic composition and its preparation method
      68, dielectric ceramic composition and dielectric resonator
      69, high frequency ceramic dielectric material, its preparation method and the obtained capacitor
      70, the use of the laser as a magnetic recording medium on the glass ceramic substrate texture
      71, ceramic capacitors with CZT dielectric
      72, non reducing dielectric ceramic and monolithic ceramic capacitor
      73, dielectric ceramic material for chip capacitor and preparation method thereof
      74, dielectric ceramics with high dielectric constant and flat temperature coefficient
      75, dielectric ceramic composition, capacitor using the composition and method of manufacturing the same
      76, a multilayer ceramic dielectric filter
      77, dielectric ceramic composition, capacitor using the composition and method of manufacturing the same, 2
      78, dielectric ceramic powder and its manufacturing method and composite dielectric material

      79, low temperature sintered dielectric ceramic composition, multilayer ceramic chip capacitor and ceramic electronic device
      80, dielectric ceramic composition and monolithic ceramic capacitor
      Dielectric ceramic powder mixture, containing 81 barium lithium borosilicate flux and magnesium zinc titanate powder
      82, transition metal glass ceramic gain medium
      83, nano ceramic material doping agent, high dielectric resistance multilayer ceramic capacitor dielectric material and the preparation method of the two
      84, glass ceramic substrate for information storage medium, its manufacturing method and information storage medium disk
      85, dielectric ceramic composition and electronic component
      86, dielectric ceramic composition and manufacturing method thereof
      87, glass substrate for information storage medium
      88, glass ceramic substrate for magnetic information storage medium
      89, dielectric ceramic and resonator using the same
      90, dielectric ceramic composition and ceramic capacitor 3
      91, magnetic information recording medium glass - ceramic substrate
      92, dielectric ceramic composition and ceramic capacitor 2
      93, the production of ceramic metal heat storage medium method and its products
      94, dielectric ceramic composition and electronic component thereof
      95, ceramic capacitor and its manufacturing method and dielectric laminated device
      96, dielectric ceramics and electronic components
      97, dielectric ceramic composition, laminated ceramic capacitor and manufacturing method thereof
      98, ceramic film and manufacturing method, ferroelectric capacitor and its manufacturing method
      99, ceramic and its manufacturing method, and dielectric capacitor, semiconductor device and component





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