公开(公告)号：US20180218836A1

公开(公告)日：2018-08-02

申请号：US15882397

申请日：2018-01-29

Applicant: Rogers Corporation

Inventor： Eui Kyoon Kim ,  Michael White ,  Murali Sethumadhavan ,  Karl Edward Sprentall

IPC: H01F41/14 ,  H01F10/14 ,  H01F10/30 ,  B32B18/00 ,  B32B37/06 ,  B32B38/00

Abstract: In an embodiment, a method of forming a magneto-dielectric material comprises roll coating a ferromagnetic material onto a dielectric layer comprising a dielectric material by continuously moving the dielectric layer through a ferromagnetic coating zone to form a coated sheet; forming a plurality of sheets from the coated sheet; forming a layered stack of the plurality of sheets; laminating the layered stack to form the magneto-dielectric material having a plurality of alternating ferromagnetic layers and dielectric layers. In another embodiment, a method of forming a magneto-dielectric material comprises drum roll coating a ferromagnetic material and a dielectric material onto a drum roll to form the magneto-dielectric material having a plurality of alternating ferromagnetic layers and dielectric layers.

公开(公告)号：US09596755B2

公开(公告)日：2017-03-14

申请号：US14882967

申请日：2015-10-14

Applicant: ROGERS CORPORATION

Inventor： Murali Sethumadhavan ,  Allen F. Horn, III ,  Karl Edward Sprentall ,  Michael White

IPC: H05K1/03 ,  H01F1/34 ,  H01F17/00 ,  D06M11/83 ,  D06M15/227 ,  H05K3/04 ,  H05K3/06 ,  H05K3/46

CPC classification number: H05K1/0353 ,  D06M11/83 ,  D06M15/227 ,  D06M2200/00 ,  H01F1/348 ,  H01F17/0006 ,  H05K3/043 ,  H05K3/061 ,  H05K3/4644 ,  H05K2201/083

Abstract: In an embodiment, a magneto-dielectric substrate comprises a dielectric polymer matrix; and a plurality of hexaferrite particles dispersed in the polymer matrix in an amount and of a type effective to provide a magneto-dielectric substrate having a magnetic constant of greater than or equal to 2.5 from 0 to 500 MHz, or 3 to 8 from 0 to 500 MHz; a magnetic loss of less than or equal to 0.1 from 0 to 500 MHz, or 0.001 to 0.05 over 0 to 500 MHz; and a dielectric constant of 1.5 to 8 or 2.5 to 8 from 0 to 500 MHz.

Abstract translation: 在一个实施例中，磁介电基片包括电介质聚合物基体; 以及分散在聚合物基体中的数量和类型的多个六铁素体颗粒，其有效地提供磁介质基底，其磁性常数为从0至500MHz大于或等于2.5，或3至8从0至 500 MHz; 0至500MHz的磁损耗小于或等于0.1，在0至500MHz时为0.001至0.05; 介电常数为0〜500MHz的1.5〜8或2.5〜8。

公开(公告)号：US20160276072A1

公开(公告)日：2016-09-22

申请号：US15074036

申请日：2016-03-18

Applicant: ROGERS CORPORATION

Inventor： Murali Sethumadhavan ,  Allen F. Horn, III ,  Karl Edward Sprentall ,  Michael White

IPC: H01F1/03

CPC classification number: H01F1/0315 ,  H01F1/348 ,  H01F1/37 ,  H01F17/0006 ,  H05K1/0373 ,  H05K2201/086

Abstract: In an embodiment, a magneto-dielectric substrate comprises a dielectric polymer matrix; and a plurality of hexaferrite particles dispersed in the dielectric polymer matrix in amount and of a type effective to provide the magneto-dielectric substrate with a magnetic constant of less than or equal to 3.5 from 500 MHz to 1 GHz, or 3 to 8 from 500 MHz to 1 GHz, and a magnetic loss of less than or equal to 0.1 from 0 to 1 GHz, or 0.001 to 0.07 over 0 to 1 GHz.

Abstract translation: 在一个实施例中，磁介电基片包括电介质聚合物基体; 以及分散在电介质聚合物基体中的数量和数量的多个六铁素体颗粒，并且有效地为从500MHz至1GHz提供小于或等于3.5的磁常数或从500提供3至8的磁介电基板 MHz至1GHz，以及从0至1GHz小于或等于0.1的磁损耗，或0至1GHz的0.001至0.07的磁损耗。

公开(公告)号：US20160113113A1

公开(公告)日：2016-04-21

申请号：US14882967

申请日：2015-10-14

Applicant: ROGERS CORPORATION

Inventor： Murali Sethumadhavan ,  Allen F. Horn, III ,  Karl Edward Sprentall ,  Michael White

IPC: H05K1/03 ,  H05K3/46 ,  H05K3/04 ,  H05K3/06 ,  D06M15/227 ,  D06M11/83

CPC classification number: H05K1/0353 ,  D06M11/83 ,  D06M15/227 ,  D06M2200/00 ,  H01F1/348 ,  H01F17/0006 ,  H05K3/043 ,  H05K3/061 ,  H05K3/4644 ,  H05K2201/083

Abstract: In an embodiment, a magneto-dielectric substrate comprises a dielectric polymer matrix; and a plurality of hexaferrite particles dispersed in the polymer matrix in an amount and of a type effective to provide a magneto-dielectric substrate having a magnetic constant of greater than or equal to 2.5 from 0 to 500 MHz, or 3 to 8 from 0 to 500 MHz; a magnetic loss of less than or equal to 0.1 from 0 to 500 MHz, or 0.001 to 0.05 over 0 to 500 MHz; and a dielectric constant of 1.5 to 8 or 2.5 to 8 from 0 to 500 MHz.

Abstract translation: 在一个实施例中，磁介电基片包括电介质聚合物基体; 以及分散在聚合物基体中的数量和类型的多个六铁素体颗粒，其有效地提供磁介质基底，其磁性常数为从0至500MHz大于或等于2.5，或3至8从0至 500 MHz; 0至500MHz的磁损耗小于或等于0.1，在0至500MHz时为0.001至0.05; 介电常数为0〜500MHz的1.5〜8或2.5〜8。