The provided text offers a comprehensive overview of multispectral stealth fighter technologies, emphasizing a shift from single-spectrum radar evasion to holistic signature management across Radio Frequency (RF), Infrared (IR), and Acoustic domains. It discusses the limitations of traditional stealth and introduces advanced concepts like metamaterials for RF and thermal control, adaptive thermal masking for IR deception, and acoustic signature reduction for low-altitude operations. The document highlights the significant engineering challenges and trade-offs in integrating these technologies, illustrating differing design philosophies through case studies of contemporary stealth aircraft like the F-22, F-35, Su-57, and J-20, ultimately advocating for signature agility as the future of air dominance.

Research done with the help of artificial intelligence, and presented by two AI-generated hosts.