wide-band hybrid pyramid em absorbers

Wide-band hybrid pyramid em absorbers 3630

For the construction of a small anechoic chamber to get a larger space than one could build with pyramid-shaped absorbers. Performs very well in wide band (30 MHz to 18 GHz)

The 3630 series Wide-band hybrid pyramid EM absorber and is available in 2 sizes. It shows good absorption performance in the wide band between 30 MHz and 18 GHz when combined with 6.3 mm thick Ferrite absorber tiles (Part nr. 3600-63). The hybrid pyramid absorber is made out of a carbon-loaded polystyrene and is tuned for perfect performance over Ferrite absorber tiles.

Due to this special characteristic, the product is suitable for building a small anechoic chamber to get a bigger space than built with foam pyramidal absorber. Also, it can increase the frequency from 1 GHz to 18 GHz as compared to a standard anechoic chamber that only has Ferrite absorber tiles.

 structure & specifications

Color Dark gray
Shape Pyramid
Main material Ferrite powder
Power handling capacity 1.8 kW/m2
Max service temperature (oC) 150
Fire retardance Non-flammable

Part numbers and dimensions

Part number Pyramid quantity
per unit
Unit size 
(L x W x H in mm)
3630-200-80 16 200 x 200 x 80 2.11 Single unit
3630-200-250 4 200 x 200 x 250 3.24


  • Performs very well in wide band (30MHz to 18GHz)
  • So strong that an adult can stand on it
  • Does not deteriorate even if it gets wet
  • 10 times more durable than conventional products
  • Easy to install on wall surfaces without adhesives being required
  • Outstanding impedance matching with ferrite tiles
  • REACH & RoHS compliant
  • Non-flammable
  • Suitable for high power testing


  • Electromagnetic-wave anechoic chambers
  • Compact EM-wave anechoic chambers
  • Floor-type electromagnetic-wave absorbers
  • Installation on shielded doors
  • Suitable for EMS high-power irradiation test
  • Suitable for small anechoic chamber (approximately 3 meters)
  • Anechoic chambers for antenna
  • For actual use in various GHz bandwidth

Performance characteristics

wide band hybrid pyramid em pabsorber insertion loss


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