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EMI Shielding

EMI Shielding

Boegger woven fine wire mesh is available unplated, blackened, or silver plated and conductively blackened. In addition, a variety of product configurations are available for all conductive optical grids

Typical applications for conductive optical grids include EMI/RFI shielding of electronic displays and enclosures used in:
•
 Military applications – requiring the attenuation of radiated
EMI/RFI emissions and susceptibility per MIL-STD-461 and MIL-STD-464
•
 Rugged computers, tactical radios, sensors and vehicle-mounted displays
•
 Secure communication systems to meet tempest and FCC compliance and for homeland security
•
 Medical displays – MRI rooms, display and observation windows
•
 Aircraft Shielding – display and instrument panels, aircraft windows and doors
•
 Industrial controls, heavy equipment, shipboard electronic systems
•
 Test and measurement equipment – telecommunication, signal analyzers and generators
   
Boegger woven fine wire mesh is available unplated, blackened, or silver plated and conductively blackened. In addition, a variety of product configurations are available for all conductive optical grids, including:
•
 Laminated in optical substrates: glass, polycarbonate, acrylic, ADC, PET
•
 Optical finishes – antiglare, antireflective, chemical/abrasion resistant
•
 Sheets, cut-to-size
•
 Applied to metal frames and gasketed
•
 Applied to touch screens and digitizers
   
EMI Shielding Performances
Testing conducted at an independent lab, per IEEE 299 1997.
Mesh
Composition
Base Material/
(Plated Deposit)
Openings/
inch
Wire
Diameter
(inches)
Open
Area
H Field
E
Plane Wave
1
MHz
10
MHz
100
MHz
400
MHz
1
GHz
10
GHZ
Stainless Steel1
50
0.0012
88.4%
63
63
60
59
42
18
Stainless Steel1
80
0.0011
82.0%
68
69
70
55
44
26
Stainless Steel1
100
0.0011
79.2%
72
71
67
63
52
34
Copper2
100
0.0022
60.8%
89
90
84
77
62
42
MEM100-80
Etched Copper Mesh3
80
0.0005
86.0%
67
66
56
49
47
24
Stainless Steel2
230
0.0014
46.0%
97
-
-
77
73
62

All Ag-plated and MEM100 meshes offer resistivity of <0.05 ohms/sq.

Notes:
1 Silver-plated and conductivity blackened
2 Mesh (tested per NSA-65-6 and MIL-STD-285)
3 MEM100 Mesh is available in other mesh counts (openings/in.)
 
Mesh Configurations
Product Range: Mesh available in Sheets, Cut-to-Size, Laminated
Substrates: Glass, Polycarbonate, Acrylic, PET, ADC
Size: Up to 4 ft. x 8 ft.
Thickness: 0.015 in. to 0.5 in.
Optical Finishes: Clear/Gloss or Antiglare Coating for Plastics
Antireflective
Antireflective/Antiglare
Design Options: Contrast Enhancement
Colors (short pass, long pass, band pass)
Neutral Density, Circular Polarizers
NIR Blocking Filters
Transparent Heaters
 
Standard Plain Woven Wire Meshes
Wire Type
Count
Diameter (in.)
Open area (%)
304 SS
50
0.0012
88.4
304 SS
80
0.0011
83.2
304 SS
100
0.0011
79.2
Copper
100
0.0022
60.8
316 SS
100
0.0022
60.8
Copper
145
0.0022
46.4
304 SS
150
0.0011
70.7
304 SS
180
0.0011
65.5
304 SS
200
0.0011
62.0
304 SS
230
0.0011
55.8
304 SS
250
0.0011
54.0