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Environment friendly ku band microwave dielectric ceramic

A technology of microwave dielectric ceramics and ku-band, applied in ceramics, inorganic insulators, etc., can solve the problems of not adapting to the development trend of microwave dielectric ceramics environmental protection, not conforming to the performance of Ku-band, not conducive to accurate control of components, etc., to achieve low cost , performance improvement, and low porosity

Active Publication Date: 2008-08-06
GOSPELL DIGITAL TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Q value of the quality factor cannot reach 3000, and the temperature coefficient of the resonant frequency is also ±10ppm, which does not meet the performance requirements of the Ku band. In addition, the oxide contains PbO, which is a volatile substance. On the one hand, it is not conducive to the accurate control of the composition. , on the other hand, PbO is harmful to human health and does not adapt to the development trend of environmental protection of microwave dielectric ceramics

Method used

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  • Environment friendly ku band microwave dielectric ceramic
  • Environment friendly ku band microwave dielectric ceramic
  • Environment friendly ku band microwave dielectric ceramic

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Experimental program
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Embodiment Construction

[0028] The present invention is achieved through the following schemes.

[0029] Environmentally friendly microwave dielectric ceramics for Ku-band contain main components: zirconium dioxide (ZrO 2 ), tin dioxide (SnO 2 ) and titanium dioxide (TiO 2 ) and trace additives: zinc oxide (ZnO), lanthanum trioxide (La 2 o 3 ), cobalt oxide (Co 2 o 3 ), copper oxide (CuO) and silicon dioxide (SiO 2 ) and other components. According to the proportioning of the main component and trace additives and the manufacturing method, Table 1 provides the data of each embodiment, and Table 2 provides the performance of each embodiment.

[0030] Table 1

[0031]

[0032] Table 2

[0033] implement

example

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Gospell

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outer diameter

(mm)

thickness

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Dielectric constant

ε r

Resonant frequency

(MHz)

Quality factor Q

value

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temperature...

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Abstract

The present invention relates to environment friendly microwave dielectric ceramic for dielectric resonator, filter, vibrator and other microwave elements and devices in Ku band satellite communication system. The microwave dielectric ceramic contains ZrO2, SnO2 and TiO2 as well as micro additives ZnO, La2O3, Co2O3, CuO, SiO2, etc. It is prepared through mixing the materials, ball milling, calcining, crushing, pelletizing, forming, sintering and other steps. It features the low sintering temperature resulting in low power consumption, medium dielectric constant, high quality factor and temperature stable resonant frequency.

Description

technical field [0001] The invention relates to an environment-friendly microwave dielectric ceramic for Ku-band used in microwave components such as dielectric resonators, filters and oscillators in Ku-band satellite communication systems. Background technique [0002] At present, the rapid development of the satellite TV industry has led to a sharp increase in the demand for the high frequency head, an indispensable component in satellite TV receiving equipment. This demand also greatly drives the demand for related microwave components such as microwave resonators, filters, oscillators, and microwave capacitors. The frequencies usually used in satellite broadcasting and TV are C, Ku and Kα bands. For microwave dielectric ceramics applied in Ku band, it is required to have medium dielectric constant (30-50), high quality factor, stable resonant frequency temperature characteristics and small size. The price is cheap and so on. [0003] (Zr,Sn)TiO 4 The material is a tit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48H01B3/12
Inventor 陈功田刘潭爱游宗杰谌晓文
Owner GOSPELL DIGITAL TECH
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