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Microwave dielectric ceramic material, microwave dielectric ceramic antenna and preparation method thereof

A technology of microwave dielectric ceramics and antennas, which is applied in the field of microwave dielectric ceramic antennas and their preparation, microwave dielectric ceramic materials and their manufacture and use, and can solve the problems of microwave dielectric ceramic antennas without serialization, large volume, and narrow application range of antennas, etc.

Inactive Publication Date: 2020-07-07
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the existing microwave dielectric ceramic antenna is not serialized, the temperature coefficient is large, and the large volume and weight lead to a relatively narrow range of use of the antenna.

Method used

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  • Microwave dielectric ceramic material, microwave dielectric ceramic antenna and preparation method thereof
  • Microwave dielectric ceramic material, microwave dielectric ceramic antenna and preparation method thereof
  • Microwave dielectric ceramic material, microwave dielectric ceramic antenna and preparation method thereof

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preparation example Construction

[0039] The microwave dielectric ceramic antenna of the present disclosure has the advantages of convenient preparation process, cheap raw materials, good repeatability, no pollution to the environment, convenient mass production, and is a microwave dielectric ceramic antenna with broad application prospects.

[0040] The disclosed antenna has a simple and compact structure, and has good characteristic parameters such as gain, output impedance, radiation efficiency, polarization and frequency bandwidth of the antenna.

[0041] The present disclosure has the following beneficial effects.

[0042] This disclosure adopts the solid phase reaction method to prepare the required Zn 2 SiO 4 Ceramic powder, and composite TiO 2 Adjust the microwave characteristics, after passing the microwave characteristic test, put it into the designed and manufactured mold, set the molding parameters, and then press to form. The preparation process is convenient, the raw materials are cheap, and no...

Embodiment 1

[0048] (1) Press Zn 2 SiO 4 Chemical formula ingredients, weighing 73.78g ZnO and 27.23g SiO 2 The ingredients are 100.0g in total; 100.0g of material + 300.0g of zirconia balls + 200.0ml of deionized water are added into a nylon tank, and ball milled for 1.0h in a planetary ball mill with a rotation speed of 200r / min.

[0049] (2) Put the ball-milled raw powder slurry in step (1) into a constant temperature drying oven, dry at 150° C. for 4.0 h, pass through a 20-mesh sieve after drying, and obtain a uniformly mixed powder.

[0050] (3) Pour the powder sieved in step (2) into an alumina crucible, place it in a muffle furnace, and pre-fire it at 1100°C for 4.0h to obtain Zn 2 SiO 4 The ceramic powder is passed through a 20-mesh sieve for later use.

[0051] (4) 1.0g TiO 2 and the 99.0g Zn obtained in step (3) 2 SiO 4 Mix ceramic powder, 100.0g in total; add 100.0g material + 300.0g zirconia balls + 200.0ml deionized water into a nylon tank, and mill for 1.0h in a planet...

Embodiment 2

[0054] (1) Press Zn 2 SiO 4 Chemical formula ingredients, weighing 73.78g ZnO and 27.23g SiO 2 The ingredients are 100.0g in total; 100.0g of material + 300.0g of zirconia balls + 200.0ml of deionized water are added into a nylon tank, and ball milled for 1.0h in a planetary ball mill with a rotation speed of 200r / min.

[0055] (2) Put the ball-milled raw powder slurry in step (1) into a constant temperature drying oven, dry at 150° C. for 4.0 h, pass through a 20-mesh sieve after drying, and obtain a uniformly mixed powder.

[0056] (3) Pour the powder sieved in step (2) into an alumina crucible, place it in a muffle furnace, and pre-fire it at 1100°C for 4.0h to obtain Zn 2 SiO 4 The ceramic powder is passed through a 20-mesh sieve for later use.

[0057] (4) 5.0g TiO 2 and the 95.0g Zn obtained in step (3) 2 SiO 4 Mix ceramic powder, 100.0g in total; add 100.0g material + 300.0g zirconia balls + 200.0ml deionized water into a nylon tank, and mill for 1.0h in a planet...

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Abstract

The invention relates to a microwave dielectric ceramic material, a microwave dielectric ceramic antenna and a preparation method of the microwave dielectric ceramic antenna. The chemical compositionof the microwave dielectric ceramic material is xTiO2-(1-x)Zn2SiO4, wherein x is greater than or equal to 1.0 wt% and less than or equal to 20.0 wt%.

Description

technical field [0001] The invention belongs to the field of microwave dielectric ceramic materials and their manufacture and use, and in particular relates to a microwave dielectric ceramic material, a microwave dielectric ceramic antenna and a preparation method thereof. Background technique [0002] The traditional antenna preparation process has great shortcomings in circuit interconnection and product packaging, which can no longer meet the requirements of modern technology for a new generation of equipment with high performance, low cost, small size, and light weight. By adjusting the material system, sintering temperature, and molding process of microwave dielectric ceramics, the high frequency and high Q of the material can be improved, and the use of metal materials with high conductivity as conductors is conducive to improving the quality factor of the circuit system. At the same time, microwave dielectric ceramic materials can adapt to large Specific environment o...

Claims

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Application Information

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IPC IPC(8): C04B35/16C04B35/622H01Q1/36
CPCC04B35/16C04B35/622C04B2235/3232C04B2235/3284C04B2235/3418H01Q1/36
Inventor 赵相毓林慧兴张奕姚晓刚何飞顾忠元姜少虎
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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