High-frequency magnetic properties of modified Cu–Ni 18H ferrites with low magnetic loss up to 6 GHz for 5G communications

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED Applied Physics Letters Pub Date : 2025-02-24 DOI:10.1063/5.0251624

Zhibiao Xu, Guowu Wang, Sha Zhang, Jinghao Cui, Longhui Xiong, Donglin He, Yu Liu, Tao Wang

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引用次数: 0

Abstract

Rapidly developing fifth-generation (5G) communications urgently require a ferrite material with high permeability and low magnetic loss in frequency bands up to 6 GHz. However, none of the present magnetic materials are capable of meeting the requirements of 5G communications because their magnetic properties deteriorate drastically when approaching GHz frequencies. Herein, we report the high-frequency magnetic properties of the modified Ba5Cu2-xNixTi3Fe12O31 (Cu–Ni 18H) ferrites, achieving a relatively high permeability of 1.6 and a low magnetic loss of 0.05 at 6 GHz, which is much better than previous reports. Such excellent performance is attributed to the expanded mono-domain critical size and reduced damping of magnetic moment precession. Moreover, deploying Cu–Ni 18H ferrites as a substrate on a patch antenna working at 6 GHz can reduce the antenna dimensions to 35% of traditional commercial materials. The present work provides a proven and promising candidate material for 5G communications and expands the research landscape for the high-frequency magnetic properties of microwave ferrites.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.