Design of a new coplanar isolator made from YIG film operating in the X-frequency band S. Kirouane, D. Vincent, E. Vernet, O. Zahwe, B. Payet-Gervy and A. Chaabi Eur. Phys. J. Appl. Phys., 57 1 (2012) 10602 Published online: 28 November 2011 DOI: 10.1051/epjap/2011110091