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Shielding
SEFAR PowerShield fabrics are light and highly air permeable shielding fabrics with electromagnetic field attenuations up to 40 dB.
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SEFAR PowerShield – fabrics for electromagnetic field shielding
The SEFAR PowerShield fabrics are hybrid woven fabrics consisting of PET and copper monofilaments.
SEFAR PowerShield fabric properties
Electrically insulated surface
Soft: can be placed close to the surface
that needs to be shielded
Light weight (< 90 g/m²)
Thin (0.1 mm)
High air permeability (> 8000 l/m²/s)
Semi-transparent
SEFAR PowerShield benefits
Large shielding areas (> 1 m width, unlimited length)
Electromagnetic field attenuations up to 40 dB
Can be laminated into customer's product
At a typical WLAN frequency of 2.4 GHz, over 30 dB can be reached, which means that over 99.9% of the signal is blocked.
Products
PowerShield PS01 – fabric for shielding of electromagnetic field with arbitrary (i.e. circular) polarization direction.
Attenuation [dB] | ||||||
PowerShield PS01 | Frequency | Vertical polarization | Horizontal polarization | |||
900 MHz | 40 | 42 | ||||
1800 MHz | 35 | 34 | ||||
2450 MHz | 32 | 30 | ||||
5.8 GHz | 23 | 24 | ||||
PowerShield PS03 – fabric for shielding of electromagnetic field with directed linear polarization.
Attenuation [dB] | ||||||
PowerShield PS03 | Frequency | Vertical polarization | Horizontal polarization | |||
900 MHz | 1.6 | 36 | ||||
1800 MHz | 1.9 | 32 | ||||
2450 MHz | 2.0 | 27 | ||||
5.8 GHz | 2.0 | 19 | ||||