Wedge Absorber for Anechoic Chambers
Wedge absorbers give around 20% more anechoic performance than full peak absorbers at frequencies below 1 GHz, due to their greater mass. The wedge system is used where a low-frequency bias is required.
Using the 20% mass the Wedge absorber system can save money by using smaller pyramids and the microwave performance is excellent with a return loss of -40dB at 8 x wavelength.
Global EMC’s wedge pyramid absorber gives excellent performance in compact chambers. The absorber fully complies with NRL 8093 parts I, II and III Fire safety standard.
Compatible chambers/applications: MIL-STD461G, CISPR12/25, ETSI, Radio/Low Microwave Work.
| Length (mm) | Part No. | Normal incidence return loss (-dB) | ||||||
|---|---|---|---|---|---|---|---|---|
| - | 50 MHz | 100 MHz | 300 MHz | 1000 MHz | 5 GHz | 10 GHz | ||
| 300 | GDS300-W | N/O | N/O | 18 | 30 | 35 | 40 | |
| 400 | GDS400-W | N/O | 12 | 20 | 30 | 40 | 40 | |
| 500 | GDS500-W | N/O | 17 | 25 | 32 | 40 | 40 | |
| 700 | GDS700-W | 15 | 20 | 30 | 35 | 40 | 40 | |
