RF-Bouncer: A Programmable Dual-band Metasurface for Sub-6 Wireless Networks
summary
A compact metasurface steers both 2.4 GHz and 5 GHz signals simultaneously using slot-tuned patches and two PIN diodes per meta-atom to implement a two-bit phase shifter, with a 16×16, 35×35 cm prototype of 16×16 meta-atom array. A combinatorial search optimizes phase states for total-gain and fairness across bands; lab and real-world tests report 15.4 dB average signal-strength gain and 2.49× throughput improvements across nine receiver placements and mobility traces.
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chapters (5)
- 0:00Start
- 0:32Beamforming can improve the throughput and extend the communication range
- 1:35A straightforward approach: Install two metasurfaces, one for a single band.
- 1:46Design a new dual-band metasurface
- 5:00Empower programmability for meta-atoms Embed tunable electronic components into the metal patch
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