Frankosorb® Absorbers

Since Frankonia’s Frankosorb® thin film absorber technology started to dominate the world market, more and more customers recognize and appreciate the stable performance characteristics and many more unique attributes offered by this technology. Frankosorb® convinces with more than 25 years of operation without having any malfunction, defect, quality or performance loss or the need to refurbish.

The unique method of Frankosorb® technology and its specific manufacturing process is available either as a hybrid solution in combination with Ferrite absorbers, or as a stand-alone pyramid solution with a length up to 2,4 m. The most important advantage of the Frankosorb® long pyramid absorbers is the covering of the whole frequency range starting from 30 MHz so that additional Ferrite absorbers are unnecessary.

The Frankonia Frankosorb® absorber technology combines a variety of high-performance standards in a single solution. Due to the stable performance characteristics and its unique non-combustible attribute, a safe environment for people and EUT can been assured, which also leads to a constant, reproducible and long-lasting testing quality. Aligned with customers’ requirements, the Frankosorb® absorbers are available in several configurations that achieve a cost-effective and high-performance solution. Thus, together with the Frankosorb® absorber technology, Frankonia’s chambers offer the best choice for long-term investments.

Facts and Benefits

Nano thin-film technology guarantees highest homogeneity and impedance accuracy

Non-combustible absorbers according to DIN EN 13501-1 class A2 – s1 d0

equivalent to DIN 4102 class A2 (Chinese GB8624-2006; Russia GOST 30244-94)

evaluated according to NRL 8093 report for tests 1,2,3,4 and 5

compliant with EN/ISO 5659-2 (smoke generation and opacity)

Hardly inflammable absorbers according to DIN EN 13501-1 class B

equivalent to DIN 4102 class B1 (Chinese GB8624-2006; Russia GOST 30244-94)

evaluated according to NRL 8093 report for tests 1,2 and 3

Not carbon-based absorbers

Cost saving solution with Frankosorb® non-combustible absorbers as no sprinkler
or fire extinguishing system is necessary

High-performance characteristics ensure reproducible test results

Proven long-term stability for more than 25 years

Non-hygroscopic materials are used to meet any climatic conditions (humidity-proof and temperature-proof)

No toxic gases emitted in case of absorber heating

No dirt, solvent-free, and free of glue or other harmful substances ensure a healthy environment
for people and EUT

Recyclable at 99%

Clean room classification according to ISO 14644-1 Class 5

White coloring that improves the illumination level (no covers necessary)

Space-saving and stackable floor absorbers

Removable due to absorber fixation either by screw or hanging type

Ferrite absorbers

The individual Ferrite tiles are pre-assembled on wooden chip boards in a typical size of 600 mm x 600 mm. 

Due to the modular and prefabricated principles of Frankonia, the inner shielding will be assembled with a horizontal substructure in a predefined grid that accepts the prefabricated Ferrite absorbers with its specific size to ensure the highest performance level. The typical frequency range of Ferrite absorbers is from 30 MHz to 1 GHz.

Features

High quality prefabrication

Everything is screwed, nothing is welded or glued, no use of harmful substances

Removable Ferrite absorber plates piece-by-piece

Frankosorb® hybrid absorbers

To expand the frequency range above 1 GHz, additional pyramidal shaped absorbers in combination with Ferrite are necessary.

These absorbers are installed in a second step, in which the Ferrite absorbers typically get special fixation kits that allow the installation of additional pyramid absorbers. Those are simply screwed to the Ferrite using nuts and threaded rods. The typical frequency range of hybrid absorbers is from 30 MHz to 18/40 GHz.

Features

High quality prefabrication

Everything is screwed

Removable hybrid absorbers piece-by-piece

Optimized impedance matching between hybrid absorbers and Ferrites

Frankosorb® technology

Absorbers available acc. to DIN EN 13501-1 in fire class B (hardly inflammable) or A2 (non-combustible)

Frankosorb® long pyramid absorbers

Like hybrid absorbers, the inner shielding will be assembled with a horizontal clip-in substructure in a predefined grid that accepts the prefabricated long-pyramid absorbers with their specific size to ensure the highest performance level.

Without the need of Ferrite, the Frankosorb® pyramid absorbers with a length of 600 mm offer a typical frequency range from 80 MHz to 18/40 GHz and are therefore predestinated for MIL-STD chambers. By physical explanation, with a size of 2.400 mm the typical frequency range is 26/30 MHz to 18/40 GHz and is herewith the right choice for commercial and automotive testing chambers.

Features

High quality prefabrication

Everything is hanged into rails

Frankosorb® long pyramid absorbers start already below 30 MHz (no Ferrite necessary)

No impedance matching problem

Removable long pyramid absorbers piece-by-piece

Frankosorb® technology

Absorbers available acc. to DIN EN 13501-1 in fire class B (hardly inflammable) or A2 (non-combustible)

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