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Low-dielectric-constant microwave dielectric ceramic material and ceramic component

A technology of microwave dielectric ceramics and low dielectric constant, applied in the field of electronic ceramics, can solve the problems of poor sintering tolerance and stability, difficulty in realizing industrial production, low dielectric constant dielectric loss, etc., and achieve good compactness and ceramic body Good compactness and stable performance

Active Publication Date: 2021-06-18
SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Zn 2 SiO 4 Ceramics have low dielectric constant (6-7) and dielectric loss, but there are problems of high temperature coefficient of resonance frequency (-60ppm / ℃), poor sintering tolerance and stability, and the ceramic body is easy to vitrify after sintering. Difficult to achieve industrial production

Method used

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  • Low-dielectric-constant microwave dielectric ceramic material and ceramic component
  • Low-dielectric-constant microwave dielectric ceramic material and ceramic component
  • Low-dielectric-constant microwave dielectric ceramic material and ceramic component

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] According to the formula shown in Table 1, the low dielectric constant microwave dielectric ceramic materials of Examples 1-7 were prepared according to the method of the present invention, and their properties were tested with a network analyzer. The results are also listed in Table 1.

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PUM

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Abstract

The invention relates to a low-dielectric-constant microwave dielectric ceramic material, which is characterized by comprising the following components by mass: 75-85 wt% of a main material, wherein the main material is R-doped Zn2SiO4, R comprises one or more of Nb, Sm, La and Nd, and the content of R is 0.01-0.1 time the molar content of Si; 10-17 wt% of an auxiliary material TiO2; and 1-10 wt% of a sintering aid comprising one or more of SiO2, Na2O and B2O3. According to the invention, the dielectric constant of the low-dielectric-constant microwave dielectric ceramic material is 8-11, the quality factor is greater than 40000, the temperature coefficient of resonance frequency tau f is-35-0 ppm / DEG C, and the low-dielectric-constant microwave dielectric ceramic material can be widely applied to dielectric resonant antennas, filters, duplexers and other ceramic components.

Description

technical field [0001] The invention relates to the technical field of electronic ceramics, in particular to a low dielectric constant microwave dielectric ceramic material and ceramic components. Background technique [0002] Microwave dielectric ceramics are a key material used in microwave frequency band (mainly 300MHz ~ 30GHz) circuits as a key material in modern communications. Because of their extremely high frequency, short wavelength, large information capacity and strong direction As the core component material of resonators, filters, dielectric waveguide circuits and other microwave components widely used in modern communications. With the rapid development of mobile communication technology, microwave technology equipment is developing in the direction of miniaturization, multi-function, high performance and low cost, which puts forward higher requirements for microwave dielectric ceramics. [0003] The three parameters to measure the production index and applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/16C04B35/622C04B35/64
CPCC04B35/16C04B35/622C04B35/64C04B2235/3284C04B2235/3418C04B2235/3409C04B2235/3201C04B2235/3224C04B2235/3227C04B2235/3251C04B2235/3232C04B2235/96
Inventor 杨月霞杨彬应红刘光明付清波
Owner SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
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