Lithium ferrite material applied to C waveband phase shifter

A lithium ferrite and phase shifter technology, which is applied to waveguide devices, electrical components, circuits, etc., can solve problems such as large loss, and achieve the effects of small insertion loss, strong moisture resistance and high density

Active Publication Date: 2009-10-07
HUAYANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The loss is too large. Generally, the insertion loss is around 0.8dB at room temperature, and it increases to 1.2dB after being damp.

Method used

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  • Lithium ferrite material applied to C waveband phase shifter
  • Lithium ferrite material applied to C waveband phase shifter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A lithium ferrite material applied to a C-band phase shifter, which is made of ingredients with the following weight ratios:

[0060] Li 2 CO 3 10.92%

[0061] MgO 3.97%

[0062] TiO 2 18.86%

[0063] ZnO 1.49%

[0064] Bi 2 o 3 0.2%

[0065] NiO 0.7%

[0066] MnCO 3 4.96%

[0067] Al(OH) 3 0.5%

[0068] Nb 2 o 5 0.5%

[0069] Fe 2 o 3 57.9%

Embodiment 2

[0071] A preparation method of a lithium ferrite material applied to a C-band phase shifter,

[0072] 1) Weigh the ingredients according to the following weight:

[0073] Li 2 CO 3 330 grams

[0074] MgO 120g

[0075] TiO 2 570 grams

[0076] ZnO 45g

[0077] Bi 2 o 3 6 grams

[0078] NiO 21g

[0079] MnCO 3 150 grams

[0080]Al(OH) 3 15 grams

[0081] Nb 2 o 5 15 grams

[0082] Fe 2 o 3 1750 grams

[0083] Total weight 3022 grams.

[0084] 2) One ball mill:

[0085] 3022 grams of ingredients weighed in step 1) were added to 6044ml of distilled water and placed in a ball mill for 23 hours at a speed of 80r / min to mix the ingredients evenly. The ratio of material: water: balls was 1:2:2.

[0086] 3) Drying:

[0087] Dry the ball-milled ingredients in step 2) at 120°C.

[0088] 4) Sieving:

[0089] The batching that step 3) is dried is crossed 30 mesh sieves.

[0090] 5) Pre-burning:

[0091] With step 4) gained...

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PUM

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Abstract

The invention relates to the field of ferrite materials, discloses a lithium ferrite material applied to C waveband phase shifter, composed of the following ingredients in weight ratio: 10-12 % of Li [2] CO [3], 3-5% of MgO, 18-20% of TiO [2], 1-2% of ZnO, 0.1-0.3% of Bi [2] O [3], 0.6-0. 8% of NiO, 4-6% of MnCO [3], 0.4-0.6% of Al (OH) [3], 0.4-0.6% of Nb [2] O [5], and 55-59% of Fe [2] O [3]. The phase shifter prepared by the inventive lithium ferrite material has advantage of small insertion loss and highly moisture-proof ability.

Description

technical field [0001] The invention relates to the field of ferrite materials, in particular to a lithium ferrite material applied to a C-band phase shifter and a preparation method thereof. Background technique [0002] Ferrite is a metal oxide with ferromagnetic properties. In terms of electrical properties, the resistivity of ferrite is much larger than that of metal and alloy magnetic materials, and it also has higher dielectric properties. The magnetic properties of ferrite are also shown to have higher magnetic permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in the field of high frequency and weak current. There are many varieties of microwave ferrite materials, which are classified according to the composition and crystal structure of the material, including garnet type, spinel type and magnetoplumbite type (hexagonal crystal system). According to the manufacturing process and shape of the material, it c...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622H01P1/19
Inventor 李汉国李海东
Owner HUAYANG TECH DEV
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