Analysis and FPGA implementation of an autonomous Josephson junction snap oscillator Sifeu Takougang Kingni, Karthikeyan Rajagopal, Victor Kamdoum Tamba, Cyrille Ainamon and Jean Bio Chabi Orou Eur. Phys. J. B, 92 10 (2019) 227 Published online: 08 October 2019 DOI: 10.1140/epjb/e2019-100304-x