Petr Kadera, Alejandro Jimenez-Saez, Tom Burmeister, Jaroslav Lacik, Martin Schüßler, Rolf Jakoby. Gradient-Index-Based Frequency-Coded Retroreflective Lenses for mm-Wave Indoor Localization. IEEE Access, 8:212765-212775, 2020. [doi]
Abstract is missing.