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High-quality-factor K20 composite microwave dielectric ceramic material and preparation method thereof

A technology of microwave dielectric ceramics and high quality factor, which is applied in the field of electronic ceramics and can solve problems such as complex design

Inactive Publication Date: 2020-01-17
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the number and complexity of 5G antennas are much higher than those of 4G antennas. The more advanced Massive MIMO (Multiple-Input Multiple-Out) technology used in the 5G antenna system enables the same antenna to have Up to 64 or even higher input / output, the integration of the antenna is higher, and the design becomes more and more complex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The high-quality factor K20 composite microwave dielectric ceramic material described in the present invention is composed of a spinel phase and a perovskite phase, and the composition expression of the ceramic material is (1-x)(Mg 0.95 Zn 0.05 ) 2 (Ti 0.95 sn 0.05 )O 4 –xCa 0.8 Nd 0.4 / 3 TiO 3 , where x=0.08.

[0026] The preparation method of high quality factor K20 composite microwave dielectric ceramic material of the present invention comprises the following steps:

[0027] 1) According to the composition expression (1-x)(Mg 0.95 Zn 0.05 ) 2 (Ti 0.95 sn 0.05 )O 4 –xCa 0.8 Nd 0.4 / 3 TiO 3 , weigh MgO, ZnO, TiO 2 , SnO 2 、Nd 2 o 3 and CaCO 3 ;

[0028] 2) MgO, ZnO, TiO 2 , SnO 2 、Nd 2 o 3 and CaCO 3 After mixing, ball milling, drying, sieving and pressing into blocks were carried out in sequence, and then kept at 800°C to obtain sample sintered blocks;

[0029] 3) Sequentially pulverize, ball mill and dry the burnt sample obtained in step 2)...

Embodiment 2

[0042] The high-quality factor K20 composite microwave dielectric ceramic material described in the present invention is composed of a spinel phase and a perovskite phase, and the composition expression of the ceramic material is (1-x)(Mg 0.95 Zn 0.05 ) 2 (Ti0.95 sn 0.05 )O 4 –xCa 0.8 Nd 0.4 / 3 TiO 3 , where x=0.1.

[0043] The preparation method of high quality factor K20 composite microwave dielectric ceramic material of the present invention comprises the following steps:

[0044] 1) According to the composition expression (1-x)(Mg 0.95 Zn 0.05 ) 2 (Ti 0.95 sn 0.05 )O 4 –xCa 0.8 Nd 0.4 / 3 TiO 3 , weigh MgO, ZnO, TiO 2 , SnO 2 、Nd 2 o 3 and CaCO 3 ;

[0045] 2) MgO, ZnO, TiO 2 , SnO 2 、Nd 2 o 3 and CaCO 3 After mixing, ball milling, drying, sieving and pressing into blocks were carried out in sequence, and then kept at 800°C to obtain sample sintered blocks;

[0046] 3) Sequentially pulverize, ball mill and dry the burnt sample obtained in step 2), a...

Embodiment 3

[0059] The high-quality factor K20 composite microwave dielectric ceramic material described in the present invention is composed of a spinel phase and a perovskite phase, and the composition expression of the ceramic material is (1-x)(Mg 0.95 Zn 0.05 ) 2 (Ti 0.95 sn 0.05 )O 4 –xCa 0.8 Nd 0.4 / 3 TiO 3 , where x≤0.12.

[0060] The preparation method of high quality factor K20 composite microwave dielectric ceramic material of the present invention comprises the following steps:

[0061] 1) According to the composition expression (1-x)(Mg 0.95 Zn 0.05 ) 2 (Ti 0.95 sn 0.05 )O 4 –xCa 0.8 Nd 0.4 / 3 TiO 3 , weigh MgO, ZnO, TiO 2 , SnO 2 、Nd 2 o 3 and CaCO 3 ;

[0062] 2) MgO, ZnO, TiO 2 , SnO 2 、Nd 2 o 3 and CaCO 3 After mixing, ball milling, drying, sieving and pressing into blocks were carried out in sequence, and then kept at 800°C to obtain sample sintered blocks;

[0063] 3) Sequentially pulverize, ball mill and dry the burnt sample obtained in step 2)...

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PUM

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Abstract

The invention discloses a high-quality-factor K20 composite microwave dielectric ceramic material and a preparation method thereof, wherein the high-quality-factor K20 composite microwave dielectric ceramic material is formed by compounding a spinel phase and a perovskite phase, the composition expression of the ceramic material is (1-x)(Mg0.95Zn0.05)2(Ti0.95Sn0.05)O4-xCa0.8Nd0.4 / 3TiO3, and x is larger than or equal to 0.08 and smaller than or equal to 0.2. According to the invention, the ceramic material has a high quality factor K20, and the preparation method is simple.

Description

technical field [0001] The invention belongs to the technical field of electronic ceramics, and relates to a high quality factor K20 composite microwave dielectric ceramic material and a working method thereof. Background technique [0002] As the name suggests, the micro base station for 5G communication is a base station that is small in size and can even be hand-held. It also lays the foundation for Device to Device data transmission. The derived material requirements are high microwave dielectric constant (>20, corresponding to short wavelength , Small device size), high quality factor (very high Q value, corresponding to low insertion loss, high frequency selection characteristics, that is, high sensitivity), high temperature stability. At the same time, the number and complexity of 5G antennas are much higher than those of 4G antennas. The more advanced Massive MIMO (Multiple-Input Multiple-Out) technology used in the 5G antenna system enables the same antenna to ha...

Claims

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Application Information

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IPC IPC(8): C04B35/465C04B35/622
CPCC04B35/465C04B35/622C04B2235/3206C04B2235/3208C04B2235/3224C04B2235/3236C04B2235/3284C04B2235/3293
Inventor 周迪郝澍钊郭欢欢吴芳芳李文艺李睿韬任佳佳
Owner XI AN JIAOTONG UNIV