mmWall: A Steerable, Transflective Metamaterial Surface for NextG mmWave Networks
summary
A 10 cm × 20 cm steerable metamaterial panel is built (a 28 by 76 unit cell array) using varactor-split ring resonators and custom control PCBs to avoid RF coupling; a precomputed voltage lookup steers or splits 24–28 GHz beams with <0.5° resolution. Indoor tests show up to 15 dB SNR gain and 91% outage-free locations at 128-QAM; outdoor-to-indoor tests report up to 30 dB SNR gain and a large reduction in complete link failures.
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chapters (14)
- 0:00Intro
- 0:29Myriad Use Cases for mmWave Networks
- 1:14Fundamental Challenges of mmWave
- 3:19mmWall Offers Unprecedented mmWave Capabilities
- 4:12mmWall: High-Level System Overview
- 4:58Link Layer Design - Refractive Establishment
- 6:42mmWall: High-Level Design Overview
- 8:30How Does it Work: Unit Cell Response
- 10:13How Does it Work: Huygen's Pattern
- 11:23Biasing Design - failed attempts
- 12:16mmWall's Proposed Meander Structure
- 12:52Implementation
- 13:25mmWall improves the corner coverage
- 15:51Conclusions
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