Absorbers by Emerson & Cuming Anechoic Chambers (E&C)
We exclusively use absorbers by our subsidiary Emerson & Cuming Anechoic Chambers (E&C) for microwave test chambers. They deliver outstanding broadband absorption performance and resilient quality. E&C absorbers are made of polyurethane foam impregnated with activated carbon. We use absorbers with high attenuation in the microwave range, specifically for microwave applications. E&C absorbers are available in numerous designs and sizes in order to achieve the required absorption in the specific range. All E&C absorbers satisfy the REACH and RoHS directives for safe workspaces.
Solid material pyramid absorbers, type VHP
E&C solid material pyramid absorbers (type designation: VHP) are our standard absorbers for microwave applications. They are available in eight sizes, ranging from 5.6 to 114 centimetres in height.
Walkway absorbers, type VHP-FL
E&C walkway absorbers (type designation: VHP-FL) are cuboid, walkable polyurethane absorbers. We use E&C walkway absorbers to build access paths in fully-anechoic microwave chambers. They are available in six sizes, ranging from 18 to 99 centimetres in height.
High-power absorbers, hollow, type HFX
For applications with high radiant energy density in electromagnetic near-field environments, compact range tests or satellite tests, we use special E&C high-power absorbers ((type designation: HFX). Their special honeycomb structure allow them to quickly emit the heat they absorb to the surrounding air. HFX absorbers can be used safely without additional cooling up to a radiant energy density of 15 kW/m2. They are available in three sizes with heights of 45.7 cm, 66 cm and 91.4 cm.
Medium-power absorbers, hollow, type HFS
E&C medium-power absorbers (type designation: HFS) are suitable for applications with medium radiant energy density of up to 3 kW/m2. They are otherwise identical to the E&C high-power absorbers (HFX).
Wedge absorbers, type WG
Wedge-shaped E&C polyurethane absorbers (type designation: WG) are used in the determination of the radar cross section (RCS), in compact range tests and in tapered absorption chambers due to their special reflection behaviour. They are available in five sizes, ranging from 12.7 to 50.4 centimetres in height.
Broadband absorbers, hollow, type HHP-60
E&C broadband absorbers (type designation: HHP-60) are particularly large, hollow pyramid absorbers with outstanding broadband absorption ranging from 100 MHz to 10 GHz. They guarantee attenuation of more than 25 dB from only 100 MHz. The total height of HHP-60 absorbers is 152 centimetres. Their hollow structure reduces the weight and improves dimensional stability. E&C HHP-60 absorbers are used above all in the automotive, aviation and aerospace and defence sectors.
- E&C pyramid absorbers made of solid material (VHP)
- Walkable E&C walkway absorbers (VHP-FL)
- Hollow E&C pyramid absorbers for high-power applications (HFX)
- Hollow E&C pyramid absorbers for medium-power applications (HFS)
- Wedge E&C absorbers (WG)
- E&C pyramid broadband absorbers, hollow (HHP-60)