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
reected,causinginternalinterference.
High frequency electric current occurs on the metal surfaces and the
reectednoiseoccursattheshieldingjoints,metalopenings,andotherparts
when the grounding is poor.
Shielding material with radio wave absorber
Shieldingmaterialwithradiowaveabsorber,transmittedwavesandreected
waves can be minimized by mounting metal plates on the back of the radio
wave absorbers.
Radio wave absorbers
Topreventreection,theelectromagneticenergyisabsorbedandconverted
into heat.
Reference: other absorbing and reecting examples
Absorbing Reecting
Radio Waves Radio waves absorbers Metals
Light Blackobjects Whiteobjects,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