Magneto dielectric composite materials and microwave applications thereof

Patent metadata

Field	Value
Publication number	US-10364511-B1
Application number	US-201615279867-A
Country	US
Kind code	B1
Filing date	Sep 29, 2016
Priority date	Jul 20, 2015
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

A system for incorporating ferromagnetic materials into several microwave application is described. The system employs a multi-layer substrate. A substrate for receiving microwave signals uses a base layer which has tunable elements and a nanofiber layer which uses magnetic nanotubes. The nanofibers have a high aspect ratio and the nanofiber layer is embedded in the base layer.

First claim

The invention claimed is:

1. A substrate for receiving microwave signals comprising:
a base layer having tunable elements; and
a nanofiber layer comprising magnetic nanofibers;
wherein said nanofibers have an aspect ratio of length to diameter of each nanofiber is at least 50 to 1; and wherein said nanofiber layer is embedded in the base layer.

2. The substrate of claim 1 wherein said tunable elements comprise a bilayer structure having a magnetic layer and a piezoelectric layer.

3. The substrate of claim 1 wherein said nanofiber layer comprises nanofibers having an insulating coating.

4. The substrate of claim 3 wherein said insulating coating comprises a sputtered layer of aluminum oxide.

5. The substrate of claim 3 wherein said nanofibers having said insulating coating are arranged in a non-overlapping pattern and said substrate is used in conjunction with an antenna.

6. The substrate of claim 1 wherein nanofibers comprising the nanofiber layer are arranged in a non-overlapping pattern and said substrate is used as an antenna.

7. The substrate of claim 1 wherein said nanofibers are flexible.

8. The substrate of claim 1 wherein said substrate comprises a self-biased magnetic material.

9. The substrate of claim 1 further comprising nanoparticles dispersed within the substrate.

10. The substrate of claim 9 wherein said nanoparticles result in impedance match between the magnetic and electric components.

11. The substrate of claim 1 further comprising nanoparticles dispersed within the base layer.

12. The substrate of claim 11 wherein said nanoparticles result in impedance match between the magnetic and electric components.

Assignees

• Chen Xing
• Zhou Ziyao
• Uchicago Argonne Llc

Inventors

• Chen Xing
• Zhou Ziyao

Classifications

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B22F1/0547

  Nanofibres or nanotubes · CPC title

• H01Q9/0407

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• D10B2401/00

  Physical properties · CPC title