IMOCELL HPF is a foam pyramidal, carbon loaded absorber, matched to a thin ferrite base.
This pyramidal part of the so called hybrid absorber is designed to optimise the poor reflectivity in the GHz range. Thanks to a special chemical formulation, this pyramidally shaped resistive top part, anyway, achieves very high level of absorption in the lowest frequency range.

absorbant HPF


  • Electromagnetic Compatibility Measurements
  • Microwave measurements
  • Automotive
  • Military


  • IMOPRENE 107 Glue
  • IMOFIX Velcro system


MaterialCarbon loaded polyurethane foam
Standard ColourBlue
Service temperature120°C
Power handling0,2W/cm²
Fire retardant standardsNRL 8093, Tests 1,2 & 3 (USA) NF P92-501
Physical specificationsSpecified in Table 1
Base dimensions610 x 610 mm
ReflectivitySpecified in Table 2

Physical Specifications

IMMOCELL HPF SerieTotal ThicknessBase HeightPyramid HeightPyramids per BlockNominal Weight
HPF 20200 mm 40 mm160 mm811.4 Kg
HPF 30 300 mm50 mm250 mm362.2 Kg
HPF 40 455 mm75 mm380 mm 163.1 Kg
HPF 60660 mm 100 mm 560 mm9 5.2 Kg

Reflectivity (with 6.5 mm ferrite tiles) in dB at frequency (GHz)

HPF Serie0.030.10.31310 and upper
HPF 20-10-13-14-9-10-15
HPF 30-12 -15-16-11-12-17
HPF 40-15 -18-20-14-13-18
HPF 60-18-22-23-19-20-30


PaintAll absorbers are painted blue unless otherwise specified.
On special order, other colours are available.
EnvironmentThe material is designed for indoor use only. For outdoor
use, a similar material, IMOCELL HPO is available.