4D-printed absorber uses heat-driven shape change to tune microwave shielding

Jun 12, 2026 A 4D-printed microwave absorber uses heat to reshape itself and strengthen internal energy loss, enabling tunable shielding after fabrication. (Nanowerk Spotlight) Microwave absorbers are shielding materials used in radar stealth, electromagnetic protection, and interference control because they take in microwave energy and dissipate it rather than reflecting...