Millimeter-Wave Radar & Dielectric Lenses.
How sub-terahertz radio waves and chiral dielectric metamaterial structures enable sub-millimeter chest wall Doppler sensing and 100% camera-free fall detection.
Sub-THz FMCW Radar
Operating across 24GHz and 60GHz frequency modulated continuous wave (FMCW) bands, Heimdall measures phase changes in reflected RF waves with 0.05mm precision.
Amber Dielectric Lens
A proprietary non-magnetic dielectric housing refracts and focuses ambient RF reflections, transforming chaotic room multipath clutter into clean directional spatial vectors.
Chest Wall Ballistocardiography
Micro-Doppler phase shifts isolate human respiration cycles (0.1–0.5 Hz) and heart contractions (0.8–2.0 Hz) through clothing, blankets, and darkness without contact.
Architecture Comparison
| Feature | Heimdall Radar Node | Smartwatch / Wearable | Optical Camera (Ring/Nest) |
|---|---|---|---|
| Visual Privacy | 100% Camera-Free (RF Only) | 100% Camera-Free | ZERO (Stores video images) |
| Senior Compliance | Passive (Zero wearables) | Fails if removed for shower/sleep | Passive |
| Fall Detection | Instant Doppler Floor Velocity | Wrist Impact Accelerometer | Blind in dark/fog/bathrooms |
| Economic Flywheel | Mines $RNR Proof-of-Uptime | Costs $10–$30/mo subscription | Costs $15–$30/mo cloud storage |