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WAVASORB® MFA

Multilayer Flatsheet Absorber

WAVASORB® MFA is a lightweight, flat and flexible multilayer absorber series manufactured from carbon-loaded urethane foam. Designed with graded layer structures, it delivers broadband reflectivity performance at microwave frequencies while maintaining mechanical flexibility and ease of installation.

Developed and quality-controlled using both commercial and proprietary simulation techniques, WAVASORB® MFA is optimized to achieve a typical reflectivity level of approximately -15 dB at microwave frequencies when measured at normal incidence relative to a metallic backing plate.

The absorber combines reliable broadband absorption with dimensional stability, long product life and compatibility with a wide range of shielding and chamber configurations.

    Key Features

    • Lightweight, flat and flexible multilayer absorber design
    • Carbon-loaded urethane foam construction
    • Typical broadband reflectivity of approximately -15 dB at microwave frequencies
    • Frequency range from 800 MHz up to 40 GHz
    • Favorable reflectivity performance up to 45° off normal incidence
    • Manufactured in well-defined batches with continuous reflectivity monitoring
    • Quality control according to IEEE Standard 1128 and ISO 9001

    Typical Applications

    • Lining of small anechoic test boxes to reduce internal reflections
    • Surrounding antennas to reduce crosstalk between adjacent antennas
    • Improving antenna patterns including back- and sidelobe performance
    • Reducing Radar Cross Section (RCS) of masts and metallic structures
    • Broadband microwave absorption in compact or space-constrained test environments

    Material & Construction

    • Multilayer structure with graded absorber layers
    • Carbon-loaded urethane foam material
    • Standard color: light blue
    • Standard footprint: 61 cm x 61 cm (±6 mm tolerance)
    • Easy to cut using band saw, scissors or sharp knife
    • Customizable sizes to fit specific project areas
    • Optional variables available including plastic coating, alternative colors and factory-installed self-adhesive tape

    Compliance & Safety

    • Tested routinely from 800 MHz to 18 GHz using waveguide and NRL Arch techniques in accordance with IEEE Standard 1128
    • Continuous internal ISO 9001 monitoring of reflectivity performance
    • Typical reflectivity performance validated at normal incidence
    • Product life expectancy of more than 25 years under controlled environmental conditions
    • Designed for handling temperatures between +5°C and +35°C and humidity range from 30% to 70%
    • Depending on application, material can withstand temperatures up to +90°C

    Installation & Integration

    WAVASORB® MFA is typically bonded to metallic surfaces using WAVASORB® Adhesive for secure fixation.

    For modular or exchangeable configurations, velcro-fastener systems are available to ensure proper geometry and alignment while remaining compatible with all shielding types.

    The absorber is easy to process and can be cut on-site using common tools. Sizes, coatings and self-adhesive options can be customized to meet specific mechanical or aesthetic project requirements.

    Datasheet

    WAVASORB® MFA
    Detailed technical specifications, reflectivity performance curves, fire certifications and environmental compliance data are available in the official WAVASORB® MFA datasheet.
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