Premium
Comment/correction: “Waves in 2D anisotropic L‐C lattice metamaterials: Phenomenology and properties”
Author(s) -
Glass B.
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23732
Subject(s) - brillouin zone , condensed matter physics , microwave , physics , lattice (music) , metamaterial , anisotropy , phase diagram , phenomenology (philosophy) , optics , phase (matter) , quantum mechanics , acoustics , philosophy , epistemology
In Brennan et al. (Microwave Opt Technol Lett 48 (2006), 2538–2542), in part 2, (for Y 0 = 0) the unusual properties of an infinite bidimensional L‐C lattice obtaining results concerning the propagation of waves (backward and forward propagation) were discussed. The same result was obtained in Brennan et al. (Microwave Symp Dig 2005 IEEE MTT‐S Int 12–17 (2005), 1757–1760) (part II). This comment points out a more efficient performance analysis and shows that the behavior for backward (LHM) or forward (RHM) waves has no special restriction for values of the phase like φ i < π/2(i = 1,2). Moreover, it must be carefully treated that the symmetry of the phase diagram (isofrequency) for the first zone of Brillouin (φ i = [−π,π], with lattice periodicity 2π). Also, there is an unusual feature for the angle δ(φ 1 ) X=const between the group and phase velocities for backward waves, where there is a discontinuity for isofrequency X = 1 at φ 1 = π. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2730–2732, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23732