FA - WW Walkway Absorber

 

FA - WW Walkway Absorber
Features：
It is a ground aisle material for people to walk in anechoic chambers, which generally should be placed along the side wall as much as possible. It can also be used for outdoor test for electromagnetic interference absorption of absorption screens, radar bins, etc.
 
Characteristics：
The product with thickness less than 300mm is composed of multi-layer semi-rigid foam plastic plate. The product with thickness more than 200mm is composed of FA pyramidal Absorber and rigid foam plastic box.
 
The FA-WW type has a certain compressive strength, and the surface is covered with a removable cloth cover. And the maximum load is 150kg/m².
 
When the ratio of material thickness (L) to the operating wavelength (λ) L/λ ≥ 0.38, the reflectivity (RW) of normal incidence can reach -17dB; it can reach-25dB when L/λ is larger.
 
Main performance indicators：

Specification	Thickness (mm)	Dimensions of Base(mm)	Low frequency limit (GHz)	Normal incidence reflectivity (-dB)
FA-WW-13	13	500 X 1000	10	17~25
FA-WW-25	25	500 X 1000	5	17~25
FA-WW-50	50	500 X 1000	2.5	17~25
FA-WW-100	100	500 X 1000	1.3	17~25
FA-WW-200	200	600 X 1200	0.6	17~25
FA-WW-300	300	600 X 1200	0.45	17~25
FA-WW-400	400	600 X 1200	0.35	17~25