Talk Title: Surface Wave Fluid Antenna Liberating Intelligent Millimeter Wave Covert Communications

Millimeter wave (MmWave) communications enable high-throughput covert transmissions by leveraging large bandwidths and highly directional narrow beams. However, their susceptibility to high path loss and blockages poses challenges in crowded environments. The emerging surface wave fluid antenna (SWFA) technology—which guides signals along building surfaces to establish indirect line-of-sight (LOS) links—offers a promising solution by innovating wireless propagation. Integrating SWFA with mmWave systems unlocks a new paradigm for covert communications, where flexible, water-like signal flow across spaces and surfaces maximizes mmWave’s advantages. This paper comprehensively investigates SWFA’s role in enhancing mmWave covertness and reliability, addressing vulnerabilities in signal propagation, beampattern exposure, and multiuser multiplexing. Specifically, we exploit SWFA for intelligent path planning to evade blockages and adversaries, optimize lowdetection probability beampatterns, and mitigate multiuser signal diffusion.