US 2017/0323710 A1 · MAGNETIC-DIELECTRIC COMPOSITE FOR HIGH-FREQUENCY ANTENNA SUBSTRATE AND MANUFACTURING METHOD THEREFOR

Abstract

The present invention relates to a magnetic-dielectric composite for a high-frequency antenna substrate, and a manufacturing method therefor, the composite comprising: a porous insulating dielectric substrate including an upper surface, a lower surface and lateral surfaces, and having a plurality of pores penetrating the upper surface and the lower surface; and soft ferrite nano-wires provided within the pores, wherein the soft ferrite nano-wires are encompassed by the insulating dielectric substrate so as to be separated from each other. The present invention controls a dielectric constant and can minimize eddy current loss by having a structure in which the soft ferrite nano-wires are provided within the pores of the insulating dielectric substrate and in which the soft ferrite nano-wires are encompassed by the insulating dielectric substrate so as to be separated from each other.

Claims20

Dependent claims

A magnetic-dielectric composite for a high-frequency antenna substrate, the magnetic-dielectric composite comprising:

a porous insulating dielectric substrate comprising an upper surface, a lower surface, and a side surface and provided with a plurality of pores penetrating the upper surface and the lower surface;
and
soft magnetic material nanowires provided in the pores,
wherein the soft magnetic material nanowires are surrounded by the porous insulating dielectric substrate to be apart from each other.

1 more element

A method for manufacturing a magnetic-dielectric composite for a high-frequency antenna substrate, the method comprising:

preparing a porous insulating dielectric substrate comprising an upper surface, a lower surface, and a side surface and provided with a plurality of pores penetrating the upper surface and the lower surface;
forming a seed layer having electric conductivity on the lower surface of the porous insulating dielectric substrate to cover the plurality of pores on the lower surface;
growing to form soft magnetic material nanowires on the seed layer exposed through a plurality of pores of the entire surface of the porous insulating dielectric substrate by electrodeposition;
and
removing the seed layer,
wherein the soft magnetic material nanowires are surrounded by the porous insulating dielectric substrate to be apart from each other.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/526,958Filed 24 Jun 2015

Priority

KR 10-2014-016380821 Nov 2014

Published

9 Nov 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01F 1/14708
Alloys characterised by their composition: fe-Ni based alloys
H01F 1/0081
One dimensional, i.e. linear or dendritic nanostructures: in a non-magnetic matrix, e.g. Fe-nanowires in a nanoporous membrane
H01Q 1/243
Specially adapted for hand-held use: with built-in antennas
H01Q 1/38
Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith: formed by a conductive layer on an…

Magnetic-dielectric composite for high-frequency antenna substrate and manufacturing method therefor

Life of this patent

Magnetic-dielectric composite for high-frequency antenna substrate and manufacturing method therefor

Life of this patent

Abstract

Claims20