SIEPEL HW Wavy Hybrid Absorbers

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 MAIN FEATURES

  •  To be combined with ferrites, either for new chambers, existing chambers or refurbishment
  • Suitable for EMC anechoic chambers
  • Very broadband frequency range 30 MHz – 40 GHz
  • Small profile with outstanding absorption
  • Performance levels guaranteed for 20 years
  • Unique plastic paint

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More information

SIEPEL HW Wavy Hybrid Absorbers

HW are high performance electromagnetic absorbers installed over ferrite tiles and dedicated to EMC applications. The combination of ferrite tiles performance levels at lower frequencies and pyramidal matched absorbers in the upper frequency range results in broadband reflectivity performances from 30 MHz to 40 GHz. These absorbers are used in EMC anechoic chambers for EMI and EMS testing according to both commercial and military standards.

DESCRIPTION

Impedance matching between ferrite tiles and HW wavy absorbers: 
  • Impedance matching between ferrite tiles and HW wavy absorbers: HW is impregnated with a specific formulated carbon solution (different from regular APM pyramidal absorbers). It provides high performance over the whole frequency range 30 MHz – 40 GHz
  • It enables to meet the specifications of the commercial EMI standards (such as CISPR 16-1-4, CISPR 25, EN 50147-2, EN 55022, ANSI C63.4 and other similar standards) and EMS standards (EN / IEC 61000-4-3), as well as MIL-STD and DO applications

Useful volume inside the anechoic chamber is optimized due to the shape of HW absorbers.

Easy installation of ferrite tiles and electromagnetic absorbers.

Optimized cost compared with the regular range of HY hybrid pyramidal absorbers

DIMENSIONS

TypeTotal Overall Height (mm)Total Overall Height (mm)*Wave Height (mm)Base Height (mm)*Base Width (mm)Weight (kg)*
HW 2423524317065605 x 60518,3

FINISHINGS

W can be covered by white caps or painted with a special coating:
  • White caps help reflect light, thus increasing the brightness in the anechoic chamber. They are bonded to the unpainted absorbers
  • Two types of paint are available: aqueous or plastic

RF POWER HANDLING

HW absorbers are designed to handle a power density up-to 2 kW/m2.