DSH-400H DuraSorb Polystyrene Hybrid Absorber

Optimized Design

The DSH-400H provides a smooth transition from free space impedance to the lossy ferrite tile base. As a result of its optimized design, high performance is guaranteed not only at the lower frequency band, but also at above 1 GHz. It has a reflectivity better than -15 dB from 80 MHz to 300 MHz, and better than -20 dB at above 300 MHz. The absorption levels make DuraSorb ideal for MIL-STD-461 and CISPR 25 standards compliant rooms and can be also treated for compliant semi-anechoic chambers for CISPR 16 and ANSI C63.4 standards. DuraSorb is manufactured by injecting uniformly loaded lossy materials in predetermined geometric shapes to produce the desired performance. After the lightweight substrates have been molded, they are shipped disassembled to job-sites for reduced shipping volume. Easily assembled at the site, finished absorbers are pressed and glued into a lightweight polystyrene universal mounting base on the walls and ceiling of the chamber. This method assures absorber rows are aligned with geometric precision.

Compact Size

DSH-400H is compact in size, with a 45.6 cm (17.95 in) height, and each 60 cm x 60 cm (23.62 in x 23.62 in) standard piece consists of two wedge shaped pyramids.

Non-hygroscopic & Fire Resistant

DuraSorb is intrinsically non-hygroscopic due to its closed cell design. Furthermore, DuraSorb is engineered to have outstanding fire resistancy. The material is treated additionally with environmentally friendly fire retardants beyond what is normally required for construction grade foams. DuraSorb material has been tested to meet the requirements of UL94 HBF and DIN 4102 B2.