The AF Series Reticulated Foam 0.750″ thick RF absorber is the mid-range option in the 3PB Solutions line of tapered, carbon-loaded reticulated foam absorbers. The carbon loading is graded from light at the front face to heavy at the back, creating an impedance-matched entry that minimizes reflection, with the open-cell structure scattering the wave to extend its path through the lossy material. Like all reticulated foam, it delivers its rated performance when installed on a conductive surface.

At 0.750″ thick, this material works from 5 GHz to above 100 GHz with -20 to -40 dB attenuation, extending coverage into C band while staying under an inch of depth. It is the balanced choice when the operating band spans C band through mmWave and full-inch material will not fit. When only X band and above matter, the 0.500″ option saves depth; when 4 GHz coverage is required, step up to the 1.000″ option.

Key Specifications
Base material: Open-cell reticulated polyurethane foam, tapered carbon loading
Thickness: 0.750″ (19.050 mm)
Frequency range: 5 GHz to above 100 GHz
Attenuation: -20 to -40 dB on a conductive backing
Operating temperature: -45 to +120°C
Sheet sizes: 24″ x 24″ and 12″ x 12″
Backing options: Conductive foil ground plane, 3M 9485PC PSA backing, or both
Compliance: Halogen-free, RoHS/REACH compliant

Common Applications
Antenna measurement systems and test ranges covering C band through mmWave, reflective surface treatment on fixtures and enclosure interiors, and installations balancing low-frequency reach against available depth.

Need a custom die-cut shape, a size not listed here, or a large production quantity? Contact our engineering team for a quote. Custom die-cut parts ship in 2 to 3 weeks.

For reflectivity performance curves by thickness and frequency, see the AF Series Reticulated datasheet, or email us or give us a call at 855-785-5660.