>>BandSorb® FB Series

BandSorb® FB is a lightweight high loss carbon impregnated dielectric foam absorber.
BandSorb® FB provides a very low cost solution for many applications over the thinner more expensive rubber absorbers.
BandSorb® FB can be used for applications requiring absorption across a wide range of frequencies , such as antenna cross-talk, side lobe reduction and cavity resonance suppression.

Availability:
BandSorb® FB series materials can be supplied in sheets as well as custom configurations. The standard sheet size is 610 mm x 610 mm. The BandSorb® FB consists out of carbon loaded polyurethane foam. BandSorb® FB is electrically conductive due to the use of the carbon dispersion.

Features and Benefits:
Lightweight, flexible and easy to trim, High Loss, low density.
Available in different thicknesses to work in a wide range of broadband frequencies.

Applications:
BandSorb® FB series can be used to

  • lower cavity Q’s in RF amplifiers, oscillators, cabinets containing microwave devices, computer housings, LNB’s.
  • isolation of antennas by Insertion loss, shrouding antennas to improve the antenna patterns and undesired back lobes
  • reduce surface currents on radiating elements and outer ground-plane type surfaces.
  • Reflectivity of an object (metal or otherwise) can be reduced somewhat by applying one or more layers.

Physical Properties:

CHARACTERISTICS

TEST

UNIT

BandSorb® FB

Frequency Range

Insertion Loss

GHz

>1

Size

-

mm (inch)

610 x 610 (24x24)

Typical Thickness

mm (inch)

3.2 (1/8), 6.4 (1/4), 9.5 (3/8), 12.7 (1/2),
19.1 (3/4)

Maximum service Temperature

-

°C (°F)

100 (212)

Compliance

2011/65/EU(RoHS 2.0) Compliance,
REACH SVHC Compliance, Halogen free

Attenuation (dB/cm)

Relative Impedance (|Z|/Z0)

BandSorb®

3 GHz

10 GHz

3 GHz

10 GHz

FB-18

3.2

4.7

0.69

0.82

FB-20

4.2

7

0.61

0.78

FB-22

7.4

14.9

0.55

0.74

FB-24

11

24

0.25

0.44

FB-26

16

34

0.18

0.31

FB-28

20

40

0.16

0.27

FB-30

24

46

0.13

0.22

-the technical specification data is based on SEM tests and analysis that we believe to be reliable. However, in no event, shall SEM be liable for inaccuracies or omissions contained therein. In all cases, details and values should be verified by the customer

Instructions for use:
BandSorb® FB can be securely bonded to itself or to other materials such as metal, wood, and common plastic composites. To obtain a strong bond the surface should be thoroughly cleaned with a degreasing solvent. It can be readily cut with a band saw, scissors, or a sharp knife.
Product Number Example

FP –

30 -

3.2 -

A

Product Name

Type

Thickness

with Pressure Sensitive Adhesive: A, blank: no tape

Schlegel Electronic Materials Asia Limited Thermal Management Materials

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