RF & MicroWave System.
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POLYURETHANE FOAM BASED MICROWAVE ABSORBERS
 
FU-SE absorber product line is a complete range of high performance pyramidal microwave absorbers.
Available in wide range of thickness and absorbencies.
Variety of thickness give the chamber designer the opportunity to choose grades appropriate for specific frequencies and incidence angles.
Constructed using low density, flexible foam, impregnated with a carbon black ferrite formulation to achieve the desired electrical performance.
The pyramidal structure gives it the geometrical matching and the carbon dispersed gives the attenuation required at near normal incidences
Provide engineers with the building blocks needed in the design and construction of RF absorbing surface used in anechoic chambers, antenna assemblies and microwave measuring facilities.
   
Absorption over a wide frequency range.
Long product life.
High performance, upto –50 dB attenuation.
These absorbers are supplied with a fire retardant finish.
   
 
 
Broadband absorbers suitable for in-door measurements.
Used in making microwave anechoic chambers for performing measurements like RCS, Antenna Measurements etc.
Used in making Moving screens for hiding the areas of maximum reflections
Used for obtaining Quiet Zones in very wide frequency range
 
POLYURETHANE FOAM BASED PYRAMIDAL ABSORBERS
MATERIAL PROPERTIES
Colour As Desired, generally available in blue
color.
Dimensions 60 cm X 60 cm
Chemical Composition Carbon ferrite impregnated polyurethane foam
Maximum service temperature 90 degree Centigrade
Power handling capacity 0.5 Watt/Cm²
Fire Retardancy Passes NRL-8093, USA test 1,2 & 3 With Zero Halogen Means
   
Absorber Type Pyramid
Height, A
Pyramid
Width, B
Base
Height, C
Total Absorber
Height, D
Number of Pyramids
per Absorber
FU-SE-4 3" 2" 1" 4" 144
FU-SE-8 6" 3" 2" 8" 64
FU-SE-12 10" 4" 2" 12" 36
FU-SE-18 15" 6" 3" 18" 16
FU-SE-24 21" 8" 3" 24" 9
Note : Above dimensions are indicative and subject to change for specific application
FU: Pyramidal: P: Porous
SE: Self Extinguishing as per Naval Research Laboratory (NRL) report no. 8093 Complying Test 1,2 & 3. With Zero Halogen Means
FL: Flat faced Walk-ON rigid Polystyrene foam Filled pyramidal absorbers.
FC: Polyurethane foam based convoluted absorbers
FW: PU foambased wedge absorberssuitable at grazing incidences .
P : Porous absorber used on conditioned air dispensers
 
TYPE THICKNESS
(Inches )
TYPICAL REFLECTIVITY IN DB FOR ANGLES NEAR NORMAL INCIDENCE RELATIVE TO METAL SURFACE VIZ. 0 DB
    80 MHz 250 MHz 500 MHz 1.0 GHz 3.0 GHz 10.0 GHz 18 GHz-40GHz
FU-SE
70/45/36
70/45/36 TO BE DESIGNED FOR THE GIVEN FERRITE TO MAKE HYBRID ABSORBERS AT LOW FREQUNCIES
FU-SE-24 24 -6 -20 -35 -40 -50 -50 -50
FU-SE-18 18     -30 -40 -45 -50 -50
FU-SE-12 12       -25 -40 -50 -50
FU-SE-8 8         -25 -50 -50
FU-SE-4 4           -40 -50
FU-P-SE-24 24     -30 -40 -40 -45 -40
FU-P-SE-12 12       -25 -40 -45 -40
 
 
 
 
 
 
 
RF & Microwave Solutions
Product Range
  Shielded Anechoic Chamber
Modular Pan Type Enclosures
Welded Enclosures
MIL-STD/Commercial EMI/EMC Measurements
3M / 10 M Ranges
  PU Foam Based Microwave Absorbers
Pyramidal Absorbers
Walk on Absorbers
Flat Multilayered Absorbers
Wedge Absorbers
Convoluated Absorbers
Antenna Shroud Absorbers
  Shielded Anechoic Chambers
RCS Measurements
Antenna Pattern Measurements
Semi-Anechoic Chambers for EMI/EMC
  Rubber Absorbers
Thin Narrowband Resonating Absorber
Thin Dual/Broadband Flexible Absorber
Surface Current Attenuating Sheets
  Shielded Products
Conductive Rubber Sheers
 Anechoic Test Boxes
Solar Cell Mfg Machine
Gems & Jewellery
Engineering Solution
Automation & SPM
 
 
 
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