Radio Frequency Magnet-free Circulators Based on Spatiotemporal Modulation of Surface Acoustic Wave Filters

Y. Yu, G. Michetti, M. Pirro, A. Kord, D.L. Sounas, Z. Xiao, C. Cassella, A. Alù, M. Rinaldi. Radio Frequency Magnet-free Circulators Based on Spatiotemporal Modulation of Surface Acoustic Wave Filters. IEEE Transactions on Microwave Theory and Techniques, 67, 12, 4773-4782 (2019).