Text version of the page

1800 Series

Screened Optical Windows

Shielding Effectiveness Stainless Steel Wire Mesh

H Field Frequency123 2KHz2dB 15KHz6dB6dB13dB 100KHz15dB16dB30dB 1MHz32dB32dB49dB E Field Frequency123 2KHz>60dB 15KHz82dB86dB89dB 100KHz86dB87dB87dB 1MHz81dB85dB87dB 10MHz88dB E Field & Plane Wave Frequency123 18KHz92dB Plane Wave Frequency123 30MHz73dB80dB 60MHz62dB81dB 100MHz74dB84dB 150MHz84dB 180MHz90dB 300MHz70dB 400MHz77dB 650MHz 1GHz58dB59dB62dB 3GHz50dB 5GHz40dB43dB 7GHz43dB 10GHz34dB47dB 15GHz30dB38dB44dB 1. 80 mesh type 304 stainless steel with a .0011" wire diameter, silver plated (fusing thewire crossovers) and blackened, with a black conductive corrosion resistant plating. 2. 100 mesh type 304 stainless steel with a .0011" wire diameter, silver plated (fusing thewire crossovers) and blackened, with a black conductive corrosion resistant plating. 3. 100 mesh type 316 stainless steel with a .0022" wire diameter, silver plated (fusing thewire crossovers) and blackened, with a black conductive corrosion resistant plating.Port size 20"x24", test performed in accordance with NSA-65-6 and MIL-STD-285

Shielding Effectiveness Copper Wire Meshes

H Field Plane Wave Frequency1 Frequency1 15KHz5dB 30MHz80dB 100KHz21dB 60MHz82dB 1MHz41dB 100MHz84dB 150MHz92dB 180MHz90dB 400MHz77dB 1GHz62dB E Field 5GHz51dB Frequency1 10GHz42dB 1KHz>60dB 15GHz43dB

Transparent vapour deposited conductive coatings

15KHz90dB

ITO (Indium Tin Oxide) and Gold can be applied to the substratesbut do not provide as good shielding effectiveness as wire mesh. Their advantage is that optical clarity is maintained and there is no degradation in resolution. The coating can be applied in variousthicknesses to achieve a resistance of 5, 10 or 25 ohms/square.

100KHz89dB E Field & Plane Wave 1MHz89dB Frequency1 10MHz90dB 18MHz88dB 1100 mesh copper with a .0022" wire diameter, plated (fusing the wire crossovers) andblackened, with a black conductive corrosion resistant plating.Port size 20"x24", test performed in accordance with NSA-65-6 and MIL-STD-285
Kemtron Limited , Prospect House 1-3 Brickfields Road, South Woodham Ferrers, Chelmsford, Essex CM3 5XB, EnglandTelephone +44(0)1245 325555 Facsimile +44(0)1245 325590 Email: info@kemtron.co.uk Internet: www.kemtron.co.uk