How do stealth characteristics affect enemy radar detection?

Stealth characteristics play a crucial role in minimizing an aircraft's radar cross-section. By reducing the radar cross-section, an aircraft reflects less radar energy back to the source, making it harder for enemy radar systems to detect, track, and engage the aircraft. This is achieved through a combination of design features such as specific body shapes, the use of radar-absorbing materials, and techniques that minimize heat signature emissions.

In contrast, the other options do not accurately reflect the impact of stealth technology on radar visibility. Enhancing communication signals is unrelated to detection evasion strategies and focuses instead on information exchange. Similarly, improving engine performance pertains to operational capabilities rather than radar interaction. Lastly, increasing visibility to radar directly contradicts the purpose of stealth, which is specifically to avoid detection. Thus, minimizing the radar cross-section is fundamentally what allows stealth aircraft to operate more effectively in contested environments.