A kind of 5g application low-loss soft ferrite material and preparation method thereof

Abstract

The invention belongs to the technical field of ferrite synthesis, and relates to a 5g application of low-loss soft ferrite material and a preparation method thereof. The raw material includes modified Fe 2 o 3 , Mn 3 o 4 , ZnO mixture, raw material content modified Fe 2 o 3 36.8mol% to 38.5mol%, ZnO is 26.4mol% to 28.2mol%, and the balance is Mn 3 o 4 , the soft ferrite material also includes additives, the additives include CaCO 3 , Nb 2 o 5 、 Bi 2 o 3 , V 2 o 5 、Co 2 o 3 、MoO 3 At least four of them, the soft ferrite material also includes a distortion inhibitor, and the present invention uses Fe 2 o 3 Modified Fe by wrapping SiC fibers inside 2 o 3 , the modified raw material can be doped from all directions inside the crystal after mixing the materials, and the doping effect is more significant. No deformation occurs, and the anti-distortion agent will volatilize in the subsequent sintering process, so that the ferrite can maintain high magnetic permeability while ensuring low dielectric loss.

Description

technical field [0001] The invention belongs to the technical field of ferrite synthesis, and in particular relates to a 5g low-loss soft ferrite material and a preparation method thereof. Background technique [0002] With the development of power supply technology and communication technology, the development of power supply in the direction of more energy saving and miniaturization requires higher power loss of materials. Outdoor facilities of modern 5G communication equipment, such as power supplies, repeaters, microwave relay stations, submarine cables , Optical cable underwater equipment, etc., not only require high temperature resistance, but also withstand severe cold, and require that the equipment can work reliably and stably. Therefore, the material is required to have a wide temperature range from -40°C to +140°C, even to 160°C, which requires the material to have high magnetic induction and low power loss from low temperature to high temperature. [0003] Altho...

AI Technical Summary

Problems solved by technology

In recent years, in the industry, in order to obtain high-performance power ferrite materials for 5G applications in communication and network facilities, technicians have done a lot of research work, which can be described as fruitful. Wide temperature, low loss, high magnetic flux density MnZn power ferrite and its preparation method, under the conditions of 100kHz and 200mT, the power consumption of the ultra-wide temperature, low loss and high magnetic flux density MnZn power ferrite at 25°C is ≤390mW / cm 3 , 120°C power consumption ≤ 330mW / cm 3 , 140°C power consumption ≤ 400mW / cm 3 , under the conditions of 1194A / m, 50Hz, the saturation magnetic flux density at 25°C ≥ 540, this material has a good wide temperature and low temperature Loss performance, but does not show power loss characteristics in a wider range up to 160°C

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