Short version: Cavity resonance is what happens when a shielded enclosure amplifies EMI instead of containing it. RF absorbers fix it by dissipating resonant energy as heat, lowering the Q factor of the cavity. The most cost-effective approach is to apply absorber material to every shield lid proactively, before problems surface. 3PB Solutions offers a
Short version: 3PB Solutions designs and manufactures RF absorber materials from 0.5 to 100+ GHz that cross-reference directly to Eccosorb™ products. Lower cost, 2 to 3 week lead times, custom thicknesses and formulations as standard service. Keep reading for the full cross-reference table and product details. Request a sample kit Product finder Request
Short version: RF absorbers, also called microwave absorbers, are not interchangeable or created equal. RF absorber material types include iron-loaded elastomer sheets, carbon-loaded foam, ferrite tiles, dispensable silicone, and dual use absorber thermal pads. Each type works through a different loss mechanism and performs best in a specific frequency range and form factor. Selecting
Short version: If you're placing die-cut RF absorber pads into shielded cavities by hand, dispensable absorbers can eliminate that labor entirely. The 3PB Solutions AC-001 Series is a liquid silicone absorber covering 1.0 to 40.0 GHz that can be dispensed by hand or with automated equipment, self-levels to a consistent thickness, and cures with
Short version: RF absorber foam (also called microwave absorber foam, RF absorbent foam, or RF absorbing foam) is an open-cell polyurethane foam loaded with carbon that absorbs electromagnetic energy and converts it to heat through dielectric loss. Depending on type and thickness, foam absorbers cover frequencies from 0.5 GHz to over 100 GHz. The five
Short version: Most RF absorber materials on the market use silicone as the base elastomer. That's a problem for any application where silicone outgassing or contamination is a disqualifier. The 3PB Solutions US Series is a magnetic-loaded acrylic elastomer that provides RF absorption from 0.5 to 18 GHz with zero silicone content. No siloxane migration,
