Ultra-thin, tunable, broadband microwave absorber may advance radar cloaking

(American Institute of Physics) Microwave absorbers are a kind of material that can effectively absorb incident microwave energy to make objects invisible to radar. Recently, as radar detection devices have improved, scientists are working on high-performance absorbers that can cloak objects in the equivalent ultra-high frequency regime. However, conventional absorbers for the ultra-high regime are usually unsuitable for stealth missions. To solve this problem, researchers have developed an ultr