An ultra-low loss wide temperature power mnzn ferrite, its preparation method and its application in the field of 5g communication

Abstract

The present invention discloses an ultra-low loss wide temperature power MnZn ferrite, preparation method and application thereof in the field of 5G communication, belonging to the field of 5G communication. Comprising the main crystal phase and the doped crystal phase, wherein the main crystal phase is mnZn ferrite having a single-phase spinel structure; the mnZn ferrite chemical composition is:; wherein 0.75<x<0.83,0.10<y<0.20,0.005<z<0.01,0.05<δ<0.15; doped crystal phase comprising: CaO, SiO 2 、Nb 2 O 5 、ZrO 2 、Co 2 O 3 and Li 2 O; the present invention by the addition of CeO 2 , so that the material grain internal resistance is high, thereby reducing the minimum loss density. And Ce 4+ The presence of ferrous ions will increase the content of ferrous ions, which will cause the minimum loss point of mnZn ferrite to move more smoothly to low temperatures, which can be controlled by CeO 2 of content optimizes the relationship between the lowest loss point and the lowest loss density.

Description

A kind of ultra-low loss wide temperature power MnZn ferrite, preparation method and 5G communication thereof Field application technical field The invention belongs to 5G communication field, especially a kind of ultra-low loss wide temperature power MnZn ferrite, preparation method and its application in the field of 5G communication. Background technique Manganese-zinc ferrite material is that MnZn ferrite is a kind of widely used in modern communication, computer, radio and television, automobile Soft magnetic materials in the fields of automotive electronics and defense technology. In recent years, with the rapid development of 5G communication, 5G communication power Efficiency has become the goal pursued by various manufacturers, which requires the corresponding manganese-zinc ferrite materials to have ultra-low loss at specific temperatures. consumption. In the past ten years, a series of wide-temperature and low-power ferrite materials at home and abroad...

AI Technical Summary

Problems solved by technology

In the past ten years, a series of wide-temperature and low-power ferrite materials at home and abroad, represented by TDK's PC95 material, have been widely used, but the minimum loss temperature point of this type of material is often at 80°C, and the minimum loss density Only 300kW / m can be achieved 3

[0003] However, the power loss of most soft ferrites has a positive temperature coefficient with the loss temperature, and the power loss increases greatly

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