TY - JOUR T1 - Extension of forward backward method with DFT based acceleration algorithm for the efficient analysis of large periodic arrays with arbitrary boundaries A1 - Civi, O.A. A1 - Erturk, V.B. A1 - Chou, H.T. JA - Microwave and Optical Tech Lett Y1 - 2005 VL - 47 SP - 293 EP - 298 ER -