Datasheet

16© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard FS8004_NSS • 9/9/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
FLEX SUPPRESSOR
®
Noise Suppression Sheet
Shielding
Shielding materials
(metal, electrically conductive material)
While transmitted waves can be minimized, most of the incoming waves are
reected,causinginternalinterference.
High frequency electric current occurs on the metal surfaces and the
reectednoiseoccursattheshieldingjoints,metalopenings,andotherparts
when the grounding is poor.
Shielding material with radio wave absorber
Shieldingmaterialwithradiowaveabsorber,transmittedwavesandreected
waves can be minimized by mounting metal plates on the back of the radio
wave absorbers.
Radio wave absorbers
Topreventreection,theelectromagneticenergyisabsorbedandconverted
into heat.
Reference: other absorbing and reecting examples
Absorbing Reecting
Radio Waves Radio waves absorbers Metals
Light Blackobjects Whiteobjects,mirrors
Sound Absorbers, felt Solid bodies (concrete, etc.)
Reflected
waves
Reflected
waves
Incoming waves
Metal
surface
High-frequency
electric current
Shield
Shield
Radio wave
absorber
Incoming
waves
Heat
conversion
Heat
conversion
Reflected
waves
Reflected
waves
Transmitted
waves
Transmitted
waves
Incoming waves
Heat
conversion
Radio wave absorber