Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of low dielectric constant dielectric material for single-cavity filter and preparation method thereof

A technology of low dielectric constant and dielectric material, applied in the direction of waveguide type devices, circuits, electrical components, etc., can solve the problems of complex preparation method, inability to meet application requirements, quality factor and flexural strength of low dielectric constant dielectric materials, etc. , to achieve the effects of microscopic uniformity, good dimensional consistency control, and improved system stability

Active Publication Date: 2021-12-21
GUANGDONG KANGRONG HIGH TECH NEW MATERIAL CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the preparation methods in the prior art are complicated, and the quality factor and flexural strength of the obtained low dielectric constant dielectric materials cannot meet the application requirements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of low dielectric constant dielectric material for single-cavity filter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0043] A low dielectric constant dielectric material for single-cavity filters, according to the mole fraction, accurately weigh 1 part of titanium dioxide, (x / 2) part of calcium carbonate, (2 / 6-x / 6) part of lanthanide oxide material, 40 parts of deionized water, added to a ball mill, and ground to D50=0.5μm, D90=1.0μm to obtain ball abrasive, which was spray-dried, then kept at 1120±30°C for 6±2h, and cooled naturally get Ca （x / 2） ln (2 / 3-x / 3) TiO 3 Crystal phase, weigh (2-z) parts of magnesium hydroxide, 1 part of anhydrous silicic acid, z parts of transition metal hydroxides, y parts of tin dioxide, m parts of Ca （x / 2） ln (2 / 3-x / 3) TiO 3 crystal phase, to obtain the batching mixture, wherein, the x, y, z, m values ​​are shown in the following table, and the batching mixture, the deionized water of 2 times the weight of the batching mixture, and the dispersant of 0.5% of the batching mixture weight are mixed at a high speed by sand milling. Evenly dispersed, the speed i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
resonant frequency temperature coefficientaaaaaaaaaa
flexural strengthaaaaaaaaaa
electrical resistivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a low-permittivity dielectric material for a single-cavity filter and a preparation method thereof. The structure of the low-permittivity dielectric material of the single-cavity filter is (1-z / 2)Mg 2 SiO 4 -(z / 2)M 2 SiO 4 -mCa （x / 2） ln (2 / 3‑x / 3) TiO 3 ‑ySnO 2 ‑(0.05~0.15)wt%AF. Preparation method of low dielectric constant dielectric material for single cavity filter, including Ca （x / 2） ln (2 / 3‑x / 3) TiO 3 Pre-preparation of crystalline phases, batching, primary grinding, spray drying, sintering, secondary grinding and spray granulation. According to the above content, the present invention proposes a low-permittivity dielectric material for a single-cavity filter and a preparation method thereof, one of the purposes of which is to provide a low-permittivity dielectric material with high quality factor and high flexural strength; The second is to provide a preparation method with simple preparation, easy-to-obtain raw materials, large-scale production and cost disclosure.

Description

technical field [0001] The invention relates to the technical field of low dielectric constant dielectric materials, in particular to a low dielectric constant dielectric material used for single-cavity filters and a preparation method thereof. Background technique [0002] With the urgent demand for ceramic filters in 5G communication, research on microwave dielectric materials has become a hot topic in recent years. Microwave dielectric ceramics refer to ceramics that are used as dielectric materials in microwave frequency circuits and perform one or more functions. They are mainly used as microwave components such as resonators, filters, dielectric antennas, and dielectric waveguide circuits. They can be used in Mobile communication, satellite communication and military radar etc. [0003] At present, there are three main systems of low-dielectric microwave dielectric ceramic materials: glass-ceramic system: using glass-ceramic or amorphous glass, such as: CaO-B 2 o 3 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01B3/12C04B35/20C04B35/626C04B35/64H01B3/08H01P1/20
CPCC04B35/20C04B35/6261C04B35/62675C04B35/64H01B3/087H01P1/2002C04B2235/3234C04B2235/3293C04B2235/96C04B2235/442C04B2235/3224C04B2235/3206C04B2235/3418C04B2235/3284C04B2235/3262C04B2235/3275C04B2235/3279C04B2235/3281C04B2235/3227C04B2235/445
Inventor 谢义鹏薛伟志林小冬符仁敏
Owner GUANGDONG KANGRONG HIGH TECH NEW MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com