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Reticulated Foam Absorbers (MF11 Series)
Broadband Attenuation.
Lightweight Foam.
Performance at Every Angle.
RETICULATED FOAM ABSORBERS
MAST Technologies’ MF11 Series Reticulated Foam Absorbers are lightweight, conductive carbon-loaded foam materials providing broadband RF attenuation at microwave frequencies — engineered for application on metal surfaces inside enclosures, housings, radomes, and antenna systems. Performance characteristics vary by thickness and configuration to support a range of RF attenuation requirements across commercial and defense applications.
3-40+ GHz
Broadband Range
9
MF11 Configurations
−60° to 250°F
Operating Range
AS9100D
Quality Certified
Lightweight Broadband Absorbers for Angular Attenuation
Carbon-Loaded Reticulated Foam — Engineered for Microwave Surfaces.
MF11 Series absorbers combine broadband microwave attenuation, lightweight construction, and effective performance at high angles of incidence — the angular range where standard absorber materials typically lose effectiveness.
Standard products operate from 1–18 GHz or 18–40 GHz depending on thickness, with a continuous gradient coating engineered for high reflection loss across the operating band.
KEY CAPABILITIES — MF11 Series
MF11 Series
Standard MF11 Series Product Characteristics
Standard Format. Multiple Thicknesses, Multiple Frequency Bands.
STANDARD SHEET SIZE
24″ × 24″ (610 × 610 mm)
THICKNESS RANGE
0.375″ – 1.250″ (product dependent)
Larger thicknesses available — see product table below
FREQUENCY RANGES
1 – 18 GHz
18 – 40 GHz
Operating band depends on thickness and product configuration
Operating Temperature
−60°F to 250°F
Color
Black
Adhesive Option
PSA available on select products (see product table)
Reflectivity Performance
Frequency-Dependent Attenuation Curves
Available Products
Nine MF11 Configurations —
Matched to Your Frequency and Thickness.
Each MF11 part number documents a specific thickness, frequency range, and adhesive configuration. Select the variant that matches your application requirements, or contact our engineering team for custom configurations.
PART NUMBER
THICKNESS
FREQUENCY RANGE
PRODUCT SIZE
ADHESIVE
MF11-0001-00
0.375″ (9.53 mm)
12 – 40 GHz
24″ × 24″ (610 × 610 mm)
—
MF11-0002-00
0.500″ (12.7 mm)
8 – 40 GHz
24″ × 24″ (610 × 610 mm)
—
MF11-0002-01
0.500″ (12.7 mm)
8 – 40 GHz
24″ × 24″ (610 × 610 mm)
PSA
MF11-0003-00
0.750″ (19.05 mm)
6 – 40 GHz
24″ × 24″ (610 × 610 mm)
—
MF11-0003-01
0.750″ (19.05 mm)
6 – 40 GHz
24″ × 24″ (610 × 610 mm)
PSA
MF11-0004-00
1.000″ (25.4 mm)
4 – 40 GHz
24″ × 24″ (610 × 610 mm)
—
MF11-0004-01
1.000″ (25.4 mm)
4 – 40 GHz
24″ × 24″ (610 × 610 mm)
PSA
MF11-0005-00
1.250″ (31.75 mm)
3 – 40 GHz
24″ × 24″ (610 × 610 mm)
—
MF11-0005-01
1.250″ (31.75 mm)
3 – 40 GHz
24″ × 24″ (610 × 610 mm)
PSA
Note — Thicker configurations extend the lower frequency cutoff. PSA-backed variants (the “−01” suffix) are functionally equivalent to non-PSA versions for RF performance — the difference is installation method. Contact our engineering team for custom sizes or specifications not listed.
Performance & Test Methods
Characterized Performance, Tested in Free Space.
MF11 Series electrical performance is characterized using NRL Arch reflectivity testing methods. For frequency-specific performance curves, refer to the individual Technical Data Sheet for each MF11 part number.
MF11 Reticulated Foam Absorber Applications
Engineered to Integrate — From Antenna to Enclosure.
Microwave Cavities
Electronic Enclosures & Housings
Radomes
Network Enclosures
Antenna Systems
RF Test Environments
Work With Our Engineers
Match the MF11 Configuration to Your
Frequency, Angle & Installation.
Selecting the right MF11 variant comes down to three variables: the frequency content you need to attenuate, the angle of incidence at the installation surface, and the space available for the absorber. Our engineering team helps you map all three to the right MF11 part number.
Engineering Question
Need help matching MF11 thickness to your frequency band?
Share the operating frequency, expected angle of incidence, and the available installation envelope — our engineering team will identify the MF11 variant that matches, or recommend a custom configuration if the standard table doesn’t quite fit.
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