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Ku frequency band environment friendly microwave dielectric ceramic

A microwave dielectric ceramic and environmental protection technology, applied in ceramics, inorganic insulators and other directions, can solve the problems of difficult process control, low dielectric constant, high raw material cost, and achieve the effect of large industrial application value

Inactive Publication Date: 2006-05-17
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the microwave dielectric ceramics currently used are mainly (Zr, Sn)TiO 4 , and it has the defects of high raw material cost, relatively difficult process control and relatively low dielectric constant

Method used

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Embodiment Construction

[0016]

[0017] The "environmentally friendly microwave dielectric ceramics for Ku frequency band" disclosed by the present invention can be used as key core materials of electronic components such as resonators, oscillators, filters and capacitors for microwave communication in Ku frequency band.

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Abstract

The Ku frequency band environment friendly microwave dielectric ceramic is prepared with CaO, Ln2O3, TiO2 and Al2O3, where Ln is La, Nd and Sm, as material and has the chemical expression of xCaO-y(mNd2O3-nLa2O3-pSm2O3)-z(aTiO2+bAl2O3), where x is 20-45 mol%, y is 5-20 mol%, z is 45-60 mol%, x+y+z=100 mol%, m+n+p=1, a+b=1. The Ku frequency band environment friendly microwave dielectric ceramic contains no components harmful to environment and human health, and has the microwave dielectric performance including dielectric constant of 30-70, high of value of 16,000-47,000 GHz and near zero temperature coefficient of resonant frequency. It may be used in resonator, filter, capacitor and other key electronic elements and devices for Ku frequency band satellite communication and has important industrial application value.

Description

Technical field: [0001] The invention relates to an environment-friendly microwave dielectric ceramic for the Ku frequency band, which is applied to microwave components in Ku frequency band satellite communications such as resonators, filters and capacitors. Background technique: [0002] Since my country began to use communication satellites to transmit CCTV programs in 1985, the coverage rate of radio and television has risen to more than 90%, among which the application of satellite radio and television has played a very important role. The rapid development of the satellite TV industry has led to a sharp increase in the demand for tuners, an indispensable part of satellite TV receiving equipment. This demand also greatly drives the demand for related microwave components such as microwave resonators, filters, oscillators, and microwave capacitors. Among them, the above-mentioned microwave components made of microwave dielectric ceramics have the advantages of small siz...

Claims

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Application Information

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IPC IPC(8): C04B35/462H01B3/12
Inventor 郑兴华
Owner FUZHOU UNIV
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