Magnetic Nanowires

Research & Development

Novel Magnetic Materials

Magnetic Nanowires

Electromagnetic Shielding Materials for Millimeter and Sub-millimeter Waves.

High-performance electromagnetic shielding was achieved with the magnetic nanowires developed by UNITIKA. This technology prevents malfunction and performance degradation of the devices such as antenna and radar, which are the key components of Beyond 5G (6G) Communications and autonomous vehicles.

Features

  • ・Excellent electromagnetic shielding effect for millimeter and sub-millimeter waves derived from a combination of dielectric loss and magnetic loss.
  • ・Superior magnetic properties to conventional magnetic materials due to their high aspect ratio.
  • ・Compatible with a wide range of materials including thermoplastic and thermoset.
SEM image of the magnetic nanowire.
SEM image of the magnetic nanowire.
Ink containing the magnetic nanowire.
Ink containing the magnetic nanowire.
Sheet filled with the magnetic nanowire.
Sheet filled with the magnetic nanowire.

Electromagnetic wave absorption properties

At sub-millimeter band

テラヘルツ波帯の電波吸収性 グラフ

FeNi4Nanowire + Silicone rubber
(Nanowire loading:0.1vol%)

FeNi4FeNi4 Nanowire + Silicone rubber
(Nanowire loading:4.5vol%)

Silicone rubber

Thickness:400μm
Measured by THz-TDS

At millimeter band

ミリ波帯の電波吸収性 グラフ

Fe4Nanowire + Silicone rubber
(Nanowire loading:4.5vol%)

Thickness:100μm
Measured by Free-space method

At millimeter band

ミリ波帯の電波吸収性 グラフ

Fe4Nanowire + Silicone rubber
(Nanowire loading:4.5vol%)

Fe4Nanowire + Silicone rubber
(Nanowire loading:10vol%)

Thickness:100μm
Measured by Free-space method

< June 01, 2023 >