公开(公告)号：US11783975B2

公开(公告)日：2023-10-10

申请号：US17069371

申请日：2020-10-13

Applicant: ROGERS CORPORATION

Inventor： Li Zhang ,  Yajie Chen

IPC: H01F1/34 ,  C01G53/00 ,  C08K3/22 ,  C08K7/18 ,  C01G49/00 ,  H01F41/02

CPC classification number: H01F1/344 ,  C01G49/009 ,  C08K3/22 ,  C08K7/18 ,  H01F41/0246 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/24 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/42 ,  C08K2003/2296 ,  C08K2201/004 ,  C08K2201/005 ,  C08K2201/01 ,  C08K2201/011

Abstract: Described herein is a nanocrystalline ferrite having the formula Ni1−x−yMyCoxFe2+zO4, wherein M is at least one of Zn, Mg, Cu, or Mn, x is 0.01 to 0.8, y is 0.01 to 0.8, and z is −0.5 to 0.5, and wherein the nanocrystalline ferrite has an average grain size of 5 to 100 nm. A method of forming the nanocrystalline ferrite can comprise high energy ball milling.

公开(公告)号：US20230088794A1

公开(公告)日：2023-03-23

申请号：US17948766

申请日：2022-09-20

Applicant: ROGERS CORPORATION

Inventor： Shailesh Pandey ,  Yajie Chen ,  Lance Young ,  Kristi Pance ,  Lori Brock

IPC: H01Q9/04 ,  H01Q5/392 ,  H01Q1/38

Abstract: A dual band antenna includes a substrate having a magnetodielectric material, and an electrically conductive patch disposed on the substrate, wherein the patch has at least one in-plane cutout having an H-shape or an I-shape, as observed in a plan view of the patch.

公开(公告)号：US20220367094A1

公开(公告)日：2022-11-17

申请号：US17771683

申请日：2020-10-29

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Qifan Li

IPC: H01F1/34 ,  C01G51/00 ,  C08K3/22

Abstract: In an aspect, a ferrite composition can comprise a SbCo—M-type ferrite having the formula: Me1-xSbxCoy+xM′yFe12-x-2yO19, wherein Me is at least one of Sr, Pb, or Ba; M′ is at least one of Ti, Zr, Ru, or Ir; x is 0.001 to 0.3; and y is 0.8 to 1.3. In another aspect, a method of making the ferrite composition comprises mixing ferrite precursor compounds comprising Me, Fe, Sb, Co, and M; and sintering the ferrite precursor compounds in an oxygen atmosphere to form the SbCo—M-type ferrite. In yet another aspect, a composite comprises the ferrite composition and a polymer. In still another aspect, an article comprises the ferrite composition.

公开(公告)号：US20220181052A1

公开(公告)日：2022-06-09

申请号：US17536372

申请日：2021-11-29

Applicant: ROGERS CORPORATION

Inventor： Shawn P. Williams ,  Yajie Chen ,  Kristi Pance ,  Gianni Taraschi

IPC: H01F1/03 ,  H01F7/06

Abstract: An electromagnetic, EM, component operational at a defined operating frequency, includes: a body of material having at least one magneto-dielectric material, MDM, with a magnetic material having a relative permeability greater than one and dielectric material having a relative permittivity greater than one, at the defined operating frequency; wherein the magnetic material has one of: a multi-phase crystal structure; or, a non-cubic crystal structure; and, wherein the EM component is at least one of; an EM resonator, and an EM beam shaper.

公开(公告)号：US20210380486A1

公开(公告)日：2021-12-09

申请号：US17288363

申请日：2019-10-16

Applicant: Rogers Corporation

Inventor： Yajie Chen ,  Yiying Yao

IPC: C04B35/26 ,  H01F10/22 ,  C04B35/64 ,  C04B35/634

Abstract: A multiphase ferrite composition includes a primary phase consisting of a MnZn ferrite matrix; and 0.01 to 10 weight percent microscaled inclusion particles comprising an orthoferrite RFeO3 wherein R is a rare earth ion, yttrium iron garnet (YIG), or a combination thereof, wherein the microscaled inclusion particles have an average particle size (D50) of 0.1 micron to 5 microns, and wherein the D50 of the microscaled inclusion particles is smaller than the average particle size (D50) of the MnZn ferrite particles; and optionally 0.01 to 5 weight percent additive; wherein weight percent is based on the total weight of the multiphase ferrite composition. A method of manufacturing the multiphase ferrite composition is also disclosed.

公开(公告)号：US20210261433A1

公开(公告)日：2021-08-26

申请号：US17166352

申请日：2021-02-03

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Li Zhang ,  Shawn Williams

IPC: C01G51/00 ,  C08K3/22 ,  H01F1/34

Abstract: In an aspect, a Co2Z ferrite has the formula: (Ba1−xSrx)3Co2+yMyFe24−2y−zO41. M is at least one of Mo, Ir, or Ru. The variable x can be 0 to 0.8, or 0.1 to 0.8. The variable y can be 0 to 0.8, or 0.01 to 0.8. The variable z can be −2 to 2. The Co2Z ferrite can have an average grain size of 5 to 100 nanometers, or 30 to 80, or 10 to 40 nanometers as measured using at least one of transmission electron microscopy, field emission scanning electron microscopy, or x-ray diffraction.

公开(公告)号：US20210246046A1

公开(公告)日：2021-08-12

申请号：US17171104

申请日：2021-02-09

Applicant: ROGERS CORPORATION

Inventor： Yajie Chen ,  Qifan Li

IPC: C01G49/00 ,  C08L87/00 ,  C08L57/00

Abstract: A polycrystalline ferrite composition comprises a formula of M5Me2Ti3Fe12O31, wherein M is Ba2+, Se+, or a combination thereof; and Me is Mg2+, Zn2+, Cu2+, Co2+, or a combination thereof; and has an average grain size of 1 micrometer to 100 micrometers. A composite comprises a polymer matrix; and the polycrystalline ferrite composition. Methods of making the polycrystalline ferrite composition and the composite are also disclosed.