Polypropylene (pp) based microwave absorber

Polypropylene (pp) based microwave absorber 3710

Antenna measurement in anechoic rooms on high frequency range

The Polypropylene (pp) based microwave( electromagnetic wave) absorber is looking the same as our Polypropylene (pp) based hybrid pyramid absorber 3700 but this absorber is used on the high frequeny range. The absorber is designed for antenna measurement in anechoic rooms and 
solution for Antenna Pattern Measurement (APM), Antenna Test Range (ATR), Radar Cross Section (RCS) and Electronic Warfare Test (EWT) chambers.

Depending on the different range of sizes, each size has its own reducing factor of electromagnetic waves. It can be used to cover up the low frequency band without the use of ferrite tiles.

It is possible to place the absorber on the foor. For this we've developed the Walkable floor for absorbers 3640-Floor series. When instralled it can be used to perform sVSWR tests in EMC chambers. Depening on the size of your shielded box it also can be used for high frequency range tests as well.


Material Characteristics

Color Black
Material Polypropylene (pp)
Shape Pyramid
Power Handling Capacity 1.5 kW/
m2 or 752 V/m
Max
Service Temperature
100℃
Cleanroom Equipment Suitability ISO 14644
Class 4
Fire
Retardancy
UL94 HBF
/ DIN 4102 Class B2

Features

  • Polypropylene based microwave broadband absorber
  • Specifically designed for high frequency range
  • Suitable for antenna pattern measurement chamber
  • High uniformity of carbon powder density
  • Provides repeatable and accurate test results
  • Extremely low carbon dust emissionFoam expansion molding manufacture system
  • Eco friendly
  • Water resistant
  • Fire resistant
  • light weight material
  • Easy installation

Technical drawing

Polypropylene (pp) based microwave absorber techncial drawing

Physical Properties

Partnumber Weight
(kg)
No. of
Tips
Type Absorber
Dimensions (mm)
A B C D E
3710-10  0.86
0.21)
144
36)
Single unit 100 70 50 30 600 (300)
3710-20  1.39
0.35)
64
16)
Single unit  200 170 75 30 600 (300)
3710-30 1.89 36 Plug
& Pull
300 260 100 40 600
3710-50 3.00 16 Plug
& Pull
500 440 150 60 600
3710-75 4.38 9 Plug
& Pull
750 670 200 80 600
Due to the characteristics of polypropylene
material, the dimensional tolerances of 5mm may be occurred during transportation.
 

Typical Reflectivity

Part number 80 MHz 120 MHz 250 MHz 500 MHz 1 GHz 3 GHz 5 GHz 10 GHz 18 GHz 28 GHz 40 GHz
3710-10         -28 -32 -33 -33 -33 -33 -33
3710-20         -30 -40 -40 -50 -50 -50 -50
3710-30 -1 -3 -24 -28 -35 -48 -48 -50 -50 -50 -50
3710-50 -4 -11 -29 -34 -45 -50 -50 -50 -50 -50 -50
3710-75 -9 -20 -32 -37 -46 -50 -50 -50 -50 -50 -50

 

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