TY - JOUR T1 - A Planar Metamaterial with Dual-Band Double-Negative Response at EHF A1 - Gundogdu, T.F. A1 - Guven, K. A1 - Gokkavas, M. A1 - Soukoulis, C.M. A1 - Ozbay, E. JA - IEEE J of Selected Topics in Quantum Electronics Y1 - 2010 VL - 16 SP - 376 EP - 379 N1 - 23.11.2011 M2 - doi: 10.1109/JSTQE.2009.2031618 ER -