Sub-Terahertz Wave Compatible Transparent Electromagnetic Wave Absorbing Sheet [BG Type] (Under Development)
Overview
We are developing a thin-film electromagnetic wave absorbing sheet, BG (Beyond Generation) type, utilizing special magnetic powder and wet coating technology.
This sheet can be used in high-frequency bands and is being developed as an effective absorbing material for future high-frequency electromagnetic waves (Beyond 5G/6G).
Features
- Reflective type, achieving electromagnetic wave absorption effect (attenuation rate: over 99%) in the sub-terahertz wave region
- Absorption frequency can be controlled by design
- Transparent electromagnetic wave absorbing sheet (satisfying 60% transmittance)
Absorption frequency band can be controlled by thickness and material composition
(0.1 to 0.5 THz band)
∗ A, B, and C are different samples.
Structure and Principle
The primary reflected wave from the surface and the secondary and tertiary reflected waves from the reflective layer cancel each other out.
Specifications and Representative Values - BG Type (Under Development)
| Item | Specifications and Representative Values | Remarks |
|---|---|---|
| Compatible Frequency | 0.1 THz to 0.5 THz | Effective in shielding the requested frequency (consultation required) within the 0.1 to 0.5 THz range. |
| Shielding Characteristics | -20 db | Representative value |
| Product Form | Sheet product | Flexibility varies depending on the compatible frequency. |
| Thickness | 0.2 to 0.5 mm | Thickness varies depending on the compatible frequency. |
| Size | 5 cm × 5 cm (sheet) to 200 mm × 10 m (roll) | Size can be customized. |
| Others | Adhesive layer processing available | Only on the back of the reflective layer |
∗ The values listed are not guaranteed.
Applications
- Research and development for Beyond 5G/6G communication
- Absorbers for sensing devices such as terahertz wave body scanners
- Absorbers for unwanted electromagnetic waves in applications using the 0.1 to 0.5 THz band
