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Discrete diffraction in two‐dimensional transmission line metamaterials

We describe the efficient and accurate numerical solution of propagation problems in composite and dual‐composite right/left‐handed metamaterials using a discrete diffraction formula based on lattice Green's functions. For both metamaterials and for physically realizable parameters, we find that the observed diffraction patterns depend strongly on the temporal input frequency. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 721–725, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24991