Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2007.3576.3579NozhatN.GranpayehN.122007722In this research, the properties of a power divider that composed of two dimensional (2-D) Photonic Crystals (PC) have been analyzed. There is a large photonic band gap in transmission spectrum of the 2-D photonic crystal and by introducing a defect in the structure, some modes appear in it and propagate in the line defect waveguide. The PC power divider consists of a y-shaped line defect. The defect can be created by changing the size or removing the triangular PC defect rods. We have used an effective numerical method based on the Finite-Difference Time-Domain (FDTD) scheme to compute the evolution of the electric and magnetic fields in the structure. We have demonstrated the electric field evolution and calculated the insertion loss, isolation and coupling factors of the PC power divider.]]>Baba, T., N. Fukaya and J. Yonekura, 1999Beaky, M., J.B. Burk, H.O. Everitt, M.A. Haider and S. Venakides,1999Chien, F.S.S., S.C. Cheng, Y.J. Hsu and W.F. Hsieh,2006Collin, R.B.,1992Imada, M., S. Noda, A. Chutinan, M. Mochizuki and T. Tanaka,2002Loncar, M., T. Doll, J. Vuckovic and A. Scherer,2000Meade, R.D., A. Devenyi, J.D. Joannopoulos, O.L. Alerhand, D.A. Smith and K. Kash, 1994Mekis, A., J.C. Chen, I. Kurland, S. Fan, P.R. Villeneuve and J.D. Joannopoulos,1996Nozhat, N. and N. Granpayeh,2007Ozbay, E., M. Bayindir, I. Bulu and E. Cubukcu,2002Qui, M. and S. He,2000Qui, M. and S. He,2001Ren, H., C. Jiang, W. Hu, M. Gao and J. Wang,2006Song, B.S., T. Asano, Y. Akahane, Y. Tanaka and S. Noda,2005Taflove, A., 2005Yablonovich, E.,1987