A low dielectric constant microwave dielectric ceramic material and ceramic components

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

Active Publication Date: 2022-07-01
SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
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  • 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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  • A low dielectric constant microwave dielectric ceramic material and ceramic components
  • A low dielectric constant microwave dielectric ceramic material and ceramic components
  • A low dielectric constant microwave dielectric ceramic material and ceramic components

Examples

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Embodiment Construction

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but 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 by using a network analyzer. The results are also listed in Table 1.

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PUM

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Abstract

A low dielectric constant microwave dielectric ceramic material, characterized in that it includes the following components by mass: main material, the content of the main material is 75-85wt%, and the main material is R-doped Zn 2 SiO 4 , wherein R includes one or more of Nb, Sm, La, and Nd, and the content of R is 0.01-0.1 times the molar content of Si; the auxiliary material is TiO 2 , the content of the auxiliary materials is 10-17wt%; the sintering aids, the sintering aids include SiO 2 , Na 2 O and B 2 O 3 One or more of the above, the content of the sintering aid is 1-10wt%. The low dielectric constant microwave dielectric ceramic material has a dielectric constant of 8‑11, a quality factor greater than 40000, and a resonant frequency temperature coefficient τf of ‑35 to 0ppm / ℃, which can be widely used in dielectric resonant antennas, filters, duplexers, etc. in 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 a ceramic component. Background technique [0002] Microwave dielectric ceramics is a kind of key material used in microwave frequency (mainly 300MHz ~ 30GHz) circuits as a key material in modern communications. It is the core component material of other microwave components such as resonators, filters, dielectric waveguide loops, etc., which are 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] Three parameters to measure the production index and application value of microwave dielectric ceramics are: dielectric constant, quality factor and ...

Claims

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Application Information

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Patent Type & Authority Patents(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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