Eccosorb® OCF

Broadband, Convoluted, Open-Cell, Foam Absorber

Americas: +1.866.928.8181

Europe: +49.(0)8031.2460.0

Asia: +86.755.2714.1166

www.lairdtech.com

BROADBAND CONVOLUTED OPEN-CELL FOAM ABSORBER

Eccosorb OCF is a series of premium-grade tapered broadband absorbers. It has a

convoluted shape similar to the Eccosorb CV material, but is made from a much more open-

cell foam material. This open structure allows the piece to be used at high humidity

although long term exposure to water and UV should be avoided. For indoor higher power

requirements, cooling air can be circulated through the foam structure, either by natural

convection or by fan, to keep the temperature of the piece down. Because of the rounded

convolutions and lack of sharp corners and tips, Eccosorb OCF is the preferred absorber for

mm wave frequencies and for grazing incidence angles out to 60° off-normal.

FEATURES AND BENEFITS

MARKETS

SPECIFICATIONS

TYPICAL PROPERTIES

ECCOSORB OCF

Frequency Range

>1.5 GHz

Max. Service Temperature °C (°F)

90 (194)

Power handling with unimpeded airflow

8 kW/m²

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

Engineers are reminded to test the material in application.

APPLICATIONS

AVAILABILITY

cm, 10 cm and 15 cm. The thickness (height) determines primarily the low frequency end

of performance, all grades have similar performance at millimeter wave frequencies.

absorber to be supplied without paint, as it can have a negative effect on the reflectivity

performance.

LOW FREQUENCY LIMIT (IN GHz) OF INDICATED REFLECTIVITY

GRADE

-20 dB

-30 dB

-40 dB

-50 dB

OCF-3

3

6

9

25

OCF-4

2.5

5

8

25

OCF-6

1.5

3

6

25

The table gives the specified reflectivity values, showing the frequency at which a particular reflectivity

can be expected for each grade. Just as with Eccosorb CV, a reflectivity of -40 dB can be expected at 94

GHz. There is little degradation of the reflectivity for incidence angles as wide as 60° off-normal

incidence.