ETS-Lindgren's DuraSorb DSH-750H Absorber is the latest evolution of ETS-Lindgren's volumetrically loaded polystyrene absorber technology. It combines the advantages of the proven polyurethane based absorber performance with the physical properties of the polystyrene absorbers.
ETS-Lindgren's DuraSorb DSH-750H Absorber is the latest evolution of ETS-Lindgren's volumetrically loaded polystyrene absorber technology. It combines the advantages of the proven polyurethane based absorber performance with the physical properties of the polystyrene absorbers. DuraSorb is constructed using substrates with rigid, closed cell foams, which are loaded volumetrically and uniformly throughout the absorbers. DSH-750H is ideal for antenna measurements and military standards testing.
The DSH-750H provides a superior performance from 80 MHz to microwave frequencies. As a result of its optimized design, high performance is guaranteed, both at lower frequency bands and frequencies above 1 GHz.
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.
DuraSorb is intrinsically non-hygroscopic due to its closed cell design. Furthermore, DuraSorb is engineered to have outstanding fire resistance. 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.
Frequency Range: 80 MHz – 1 GHz
Frequency Range: 1 GHz – 40 GHz
Frequency Reflectivity80 MHz < -6 dB120 MHz < -8 dB200 MHz < -20 dB300 MHz < -25 dB500 MHz < -35 dB1 to 2 GHz L-Band < -45 dB2 to 4 GHz S-Band < -45 dB4 to 8 GHz C-Band < -50 dB8 to 12 GHz X-Band < -50 dB18 to 40 GHz K-Band < -50 dB
80 MHz < -6 dB
120 MHz < -8 dB
200 MHz < -20 dB
300 MHz < -25 dB
500 MHz < -35 dB
1 to 2 GHz L-Band < -45 dB
2 to 4 GHz S-Band < -45 dB
4 to 8 GHz C-Band < -50 dB
8 to 12 GHz X-Band < -50 dB
18 to 40 GHz K-Band < -50 dB
*All Under Ambient Temperature of 25o C (77o F)
Height 75.0 cm (29.5 in)