GB2585601B - Textured planar M-type hexagonal ferrites and methods of use thereof - Google Patents

Textured planar M-type hexagonal ferrites and methods of use thereof Download PDF

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Publication number
GB2585601B
GB2585601B GB2014487.9A GB202014487A GB2585601B GB 2585601 B GB2585601 B GB 2585601B GB 202014487 A GB202014487 A GB 202014487A GB 2585601 B GB2585601 B GB 2585601B
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methods
type hexagonal
hexagonal ferrites
textured planar
textured
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GB2585601A (en
GB202014487D0 (en
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Chen Yajie
Ring Kevin
Zhang Li
S White Michael
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Rogers Corp
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Rogers Corp
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    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H01F1/348—Hexaferrites with decreased hardness or anisotropy, i.e. with increased permeability in the microwave (GHz) range, e.g. having a hexagonal crystallographic structure
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    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
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Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11434171B1 (en) * 2019-02-12 2022-09-06 Hrl Laboratories, Llc Low-temperature-deposited self-biased magnetic composite films containing discrete hexaferrite platelets
US11679991B2 (en) 2019-07-30 2023-06-20 Rogers Corporation Multiphase ferrites and composites comprising the same
TW202116700A (zh) 2019-09-24 2021-05-01 美商羅傑斯公司 鉍釕m型六方晶系鐵氧體、包含彼之組合物及複合物、及製造方法
US11783975B2 (en) 2019-10-17 2023-10-10 Rogers Corporation Nanocrystalline cobalt doped nickel ferrite particles, method of manufacture, and uses thereof
JP2023501128A (ja) 2019-10-30 2023-01-18 ロジャーズ・コーポレイション アンチモンを含むm型ヘキサフェライト
CN115136261A (zh) 2020-02-21 2022-09-30 罗杰斯公司 具有纳米晶结构的z型六方铁氧体
US12424362B2 (en) 2020-05-07 2025-09-23 Rogers Corporation M-type hexaferrite having a planar anisotropy
CN112142456A (zh) * 2020-09-04 2020-12-29 湖南航天磁电有限责任公司 一种铁氧体吸波材料及其制备方法
CN112768170B (zh) * 2020-12-30 2022-11-01 烟台正海磁性材料股份有限公司 一种稀土永磁体及其制备方法
CN112939590B (zh) * 2021-03-12 2022-10-14 电子科技大学 一种x波段准平面化器件用六角铁氧体材料及其制备方法
US12381025B2 (en) 2021-05-17 2025-08-05 Rogers Corporation Low loss magnetodielectric material
CN113511687B (zh) * 2021-07-23 2022-10-21 桂林电子科技大学 一种吸波材料及其制备方法
KR102672288B1 (ko) * 2021-12-01 2024-06-03 한국재료연구원 경자성 페라이트 분말 및 이의 제조방법
KR102877521B1 (ko) * 2022-12-28 2025-10-28 한국재료연구원 다중 대역 전자파 흡수 복합소재 및 이의 제조 방법
CN120794602B (zh) * 2025-07-18 2026-07-31 横店集团东磁股份有限公司 一种自偏置器件用铁氧体材料及其制备方法与应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461072A (en) * 1965-05-10 1969-08-12 Philips Corp Ferrimagnetic material for use at frequencies higher than 50 mc./sec. having reduced loss factor and higher quality factor
US20100173101A1 (en) * 2006-08-11 2010-07-08 Northeastern University Method of manufacturing thick-film, low microwave loss, self-biased barium-hexaferrite having perpendicular magnetic anisotropy
WO2012103020A2 (en) * 2011-01-24 2012-08-02 Skyworks Solutions, Inc. Specialty materials processing techniques for enhanced resonant frequency hexaferrite materials for antenna applications and other electronic devices
US20140291571A1 (en) * 2013-03-29 2014-10-02 Kabushiki Kaisha Riken Magnetoplumbite-type hexagonal ferrite
US20160118171A1 (en) * 2014-10-24 2016-04-28 Skyworks Solutions, Inc. Increased resonant frequency alkali-doped y-phase hexagonal ferrites

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5076111A (cg-RX-API-DMAC10.html) * 1973-11-12 1975-06-21
JP3693398B2 (ja) 1995-12-15 2005-09-07 松下電器産業株式会社 セラミックス磁性体材料およびこれを用いた高周波用回路部品
EP0884740B1 (en) 1996-12-03 2005-09-14 TDK Corporation Process for the production of oxide magnetic compacts
US6139766A (en) 1997-02-25 2000-10-31 Tdk Corporation Oxide magnetic material, ferrite particle, sintered magnet, bonded magnet, magnetic recording medium and motor
JP5165231B2 (ja) 2006-11-29 2013-03-21 旭化成イーマテリアルズ株式会社 磁性粉含有樹脂組成物
JP4867742B2 (ja) * 2007-03-26 2012-02-01 Tdk株式会社 磁石の製造装置及び製造方法
DE102007026503B4 (de) 2007-06-05 2009-08-27 Bourns, Inc., Riverside Verfahren zur Herstellung einer Magnetschicht auf einem Substrat und druckbarer magnetisierbarer Lack
US7815820B2 (en) 2007-10-18 2010-10-19 General Electric Company Electromagnetic interference shielding polymer composites and methods of manufacture
JP2010238748A (ja) 2009-03-30 2010-10-21 Tdk Corp 複合磁性材料及びアンテナ、並びに無線通信機器
KR101845114B1 (ko) 2010-11-15 2018-04-04 더 보드 오브 트러스티즈 오브 더 유니버시티 오브 알라바마 포 앤드 온 비하프 오브 더 유니버시티 오브 알라바마 무선 통신 장치에서 사용하는 m형 헥사페라이트 안테나
US20130063296A1 (en) 2011-08-11 2013-03-14 Basf Se Microwave absorbing composition
JP6379577B2 (ja) * 2014-03-27 2018-08-29 Tdk株式会社 六方晶フェライト焼結体、及びこれを用いた高周波磁性部品
US20160099498A1 (en) 2014-10-02 2016-04-07 Rogers Corporation Magneto-dielectric substrate, circuit material, and assembly having the same
TWI663896B (zh) 2014-10-15 2019-06-21 美商羅傑斯公司 磁-電介質基板、製作該磁-電介質基板之方法及包含該磁-電介質基板之物件
JP6921751B2 (ja) 2015-03-19 2021-08-18 ロジャーズ コーポレーション 磁気誘電性基材、当該磁気誘電性基材を有する回路材料およびアセンブリ
US11679991B2 (en) 2019-07-30 2023-06-20 Rogers Corporation Multiphase ferrites and composites comprising the same
CN114206804B (zh) 2019-08-05 2023-06-16 罗杰斯公司 钌掺杂的z型六方铁氧体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461072A (en) * 1965-05-10 1969-08-12 Philips Corp Ferrimagnetic material for use at frequencies higher than 50 mc./sec. having reduced loss factor and higher quality factor
US20100173101A1 (en) * 2006-08-11 2010-07-08 Northeastern University Method of manufacturing thick-film, low microwave loss, self-biased barium-hexaferrite having perpendicular magnetic anisotropy
WO2012103020A2 (en) * 2011-01-24 2012-08-02 Skyworks Solutions, Inc. Specialty materials processing techniques for enhanced resonant frequency hexaferrite materials for antenna applications and other electronic devices
US20140291571A1 (en) * 2013-03-29 2014-10-02 Kabushiki Kaisha Riken Magnetoplumbite-type hexagonal ferrite
US20160118171A1 (en) * 2014-10-24 2016-04-28 Skyworks Solutions, Inc. Increased resonant frequency alkali-doped y-phase hexagonal ferrites

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