I'm not convinced this is feasible in the short term; drone warfare is predicated on launching not just cheap drones but many of them. The new armor isn't steel or iron to survive the blast, but to shoot down attacking drones before they can explode. Most current defenses are ground-based missile batteries that can't really be directly protected by armor. Long-term, the most promising options are laser-based batteries, which today have insufficient power sources to stuff into mobile armored platforms.