- 专利标题: MODIFIED NI-ZN FERRITES FOR RADIOFREQUENCY APPLICATIONS
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申请号: US15333569申请日: 2016-10-25
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公开(公告)号: US20170098885A1公开(公告)日: 2017-04-06
- 发明人: Michael David Hill , David Bowie Cruickshank , Kelvin Mitchell Anderson
- 申请人: Skyworks Solutions, Inc.
- 主分类号: H01Q1/24
- IPC分类号: H01Q1/24 ; H01Q17/00 ; C04B35/645 ; H01F1/03 ; C04B35/26 ; C04B35/626
摘要:
Embodiments disclosed herein relate to using cobalt (Co) to fine tune the magnetic properties, such as permeability and magnetic loss, of nickel-zinc ferrites to improve the material performance in electronic applications. The method comprises replacing nickel (Ni) with sufficient Co+2 such that the relaxation peak associated with the Co+2 substitution and the relaxation peak associated with the nickel to zinc (Ni/Zn) ratio are into near coincidence. When the relaxation peaks overlap, the material permeability can be substantially maximized and magnetic loss substantially minimized. The resulting materials are useful and provide superior performance particularly for devices operating at the 13.56 MHz ISM band.
公开/授权文献
- US10483619B2 Modified Ni—Zn ferrites for radiofrequency applications 公开/授权日:2019-11-19