"This type of RADAR Absorbent Material (RAM) uses destructive interference" is the definition of which of the following terms?

Destructive interference is a key principle in the functioning of Resonant RADAR Absorbent Material (RAM). This type of RAM is engineered to absorb specific radar frequencies by exploiting the phenomenon of wave interference, where waves of the same frequency can cancel each other out. This is achieved by designing the material's properties—such as thickness and dielectric constant—so that it resonates at targeted radar frequencies. When radar waves encounter this material, the phase of the reflected waves is manipulated in a way that they destructively interfere with incoming waves, leading to a significant reduction in radar return signals.

In contrast, Non-Resonant RAM operates across a broader range of frequencies without the same level of targeted interference. Ablative and Non-Ablative RAM focus on different mechanisms, such as thermal resistance or material removal, rather than the specific wave interactions associated with destructive interference. Therefore, the defining characteristic of using destructive interference aligns specifically with Resonant RAM.