Reliable energy absorption is essential in high-power radar applications. Conventional polymer foam absorbers can thermally degrade at high power densities, resulting in performance loss and potential safety risks. ABS Technics has developed the ceramic absorber material ABS-FGA specifically for stable operation under elevated thermal loads.

The material is made from a lightweight, inorganic, non-combustible ceramic foam with a conical cell structure. The internal surfaces are coated with a dielectric-loaded layer. The combination of geometric tapering and material properties provides a gradual impedance transition, minimal surface reflection, and efficient dissipation of electromagnetic energy into heat.

ABS-FGA offers broadband impedance matching over the frequency range of 2 to 18 GHz. The material can operate at power densities up to 2.5 W/cm² while maintaining its mechanical and electromagnetic properties up to 125 °C.

The absorber blocks are modular and easy to integrate into absorbing walls or radar and RF test setups, where thermal stability and reproducible measurement conditions are critical.