C. Cassella, G. Michetti, M. Pirro, Y. Yu, A. Kord, D.L. Sounas, A. Alú, M. Rinaldi. Radio Frequency Angular Momentum Biased Quasi-LTI Nonreciprocal Acoustic Filters. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, Vol. 66, No. 11, pp. 1814-1825, (2019).
