Anechoic Chambers
Shielded Chambers,
Screened Rooms
& Faraday Cages
Anechoic Absorbers
Shielding materials & shielding components

Hollow Pyramidal Absorbers

Hollow Pyramidal Absorbers
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The facts about... Hybrid Absorbers
To extend the functional range of the ferrite tile a Hybrid pyramidal absorber system is often used. The ferrite tiles are designed to be exposed to free space (377 ohm) but when this is disturbed by placing materials...
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The Global EMC ‘Hollow pyramid absorber’ is designed to give excellent return loss performance.


The GDS-H system has a rigid structure so that it does not sag under it’s own weight even when 2 metres long.


There is a 3 line absorber system


  1. The inner FR polystyrene structure with a carbon film.
  2. The foam base has pyramidal shape for high frequency performance.
  3. The outer layer is a 5mm thick FR foam with another resistive layer for lower frequencies.

Hollow pyramidal absorbers

The GDS-H system has minimum normal incidence performance of:




Available products:

  1. GDS1300-H = 1.3m long
  2. GDS1600-H = 1.6m long
  3. GDS2000-H = 2.0m long

Hollow Pyramid absorber