RIS

Technical Explanation

Reconfigurable Intelligent Surfaces (RIS), also referred to as Intelligent Reflecting Surfaces (IRS), turn the wireless propagation environment from an uncontrollable hindrance into an active partner. An RIS array comprises thousands of sub-wavelength electromagnetic elements controlled by low-power varactors, PIN diodes, or liquid crystals. When a 6G beam hits an RIS, the surface dynamically shifts phase to bounce the beam around obstructions, focus signals onto moving users, eliminate dead zones, and cancel unwanted interference.

Key Functions

• Programmable anomalous reflection, refraction, and absorption of high-frequency beams
• Bypassing line-of-sight blockages in dense urban Sub-THz and millimeter-wave deployments
• Ultra-low power operation (<10W) without bulky power amplifiers or RF up-converters
• Enhancing physical layer security by destructively cancelling eavesdropper signal paths
• Extending base station coverage into indoor complexes and deep urban street canyons