Datasheet

ManualsBrandsLaird ManualsFiltersSF-2.5 Resonant Microwave Absorber x305x305mm

Eccosorb® SF

Thin, Flexible, Resonant Microwave Absorber

Americas: +1.866.928.8181

Europe: +49.(0)8031.2460.0

Asia: +86.755.2714.1166

www.lairdtech.com

RESONANT MICROWAVE ABSORBER

Eccosorb SF is a narrow banded, magnetically loaded resonant absorber sheet for free-space

applications. These silicone rubber sheets are designed to be bonded to flat or curved

metallic surfaces to reduce the reflectivity in a narrow band of frequencies. Eccosorb SF

reflects -20 dB or less of normally incident microwave energy at the design frequency in the

range of 1 to 26 GHz.

FEATURES AND BENEFITS

• High power performance

• Narrow band performance

• Low outgassing properties

MARKETS

• Commercial Telecom

• Security and Defense

• Automotive

SPECIFICATIONS

TYPICAL PROPERTIES ECCOSORB SF

Max service temperature °C (°F) 163 (325)

Power Handling W/cm² 0.2

Hardness (Shore A) 73

Density Range g/cm³ 2.4-4.5

Tensile Strength (MPa) 1.0-6.0

Elongation at break % 20 - 100

Tear Strength N/mm 0.2-2.0

Data for design engineer guidance only. Observed performance varies in application.

Engineers are reminded to test the material in application.

APPLICATIONS

• Lining radar nacelles and the exterior of airframes particularly where high power is

present.

• Lining of cavity backed and shrouded telecommunication antennas where narrowband

performance is required.

• Lining metal surfaces of vehicles to reduce overall radar signature.

• Attaching to masts of ships, walls, etc to reduce reflections and echoes from nearby

antennas.

• Lining magnetron housings to prevent detuning.

• Fabricating into tapered shapes for impedance matching in waveguide or microstrip

applications.

• Lining metal surfaces to attenuate surface currents, suppressing reflections inside

microwave modules, and dampening cavity resonances in microwave modules.

• For module interference, cavity resonance and surface current problems, ECCOSORB®

GDS, ECCOSORB® MCS and ECCOSORB® BSR are recommended due to their high magnetic

loss properties, broad band performance, as well as the availability of a wider range of

thicknesses (0.010” to 0.100”).

Summary of content (2 pages)

PAGE 1
Eccosorb® SF Thin, Flexible, Resonant Microwave Absorber RESONANT MICROWAVE ABSORBER Eccosorb SF is a narrow banded, magnetically loaded resonant absorber sheet for free-space applications. These silicone rubber sheets are designed to be bonded to flat or curved metallic surfaces to reduce the reflectivity in a narrow band of frequencies. Eccosorb SF reflects -20 dB or less of normally incident microwave energy at the design frequency in the range of 1 to 26 GHz.
PAGE 2
Eccosorb® SF AVAILABILITY • • • • Standard sheets are 305 x 305mm (12”x12”) Thickness varies depending on resonant frequency desired. Other resonant frequencies from 0.7 to 40 GHz can be supplied on special order The material can also be supplied in customized shapes and can be supplied with a pressure sensitive adhesive (PSA). INSTRUCTIONS FOR USE • Eccosorb SF is designed to function directly in front of a metallic surface. If this is not the case, a metallic foil should first be bonded to the object.