This lecture presents the concept of multi-antenna backscatter signaling with multiple reader and tag antennas. The key paper for review is Josh Griffin’s ground-breaking work on MIMO signaling with backscatter tags. We also discuss the interesting small-scale fading behaviors that can arise in these scenarios.
WWB12: Multi-Antenna Signaling
Paper: J.D. Griffin, G.D. Durgin. “Multipath Fading Measurements at 5.8 GHz for Backscatter Tags With Multiple Antennas.” IEEE Transactions on Antennas and Propagation, vol 58, no 11, Nov 2010.