Defective Modes in an Anisotropic Wire Metamaterial in the Microwave Range

Defect Mode Tuning in Two-Dimensional Band-Gap Wire Structure in the Millimeter Waveband

“…Thus the resonance peak wavelength increases proportionally to d. It is obvious that the 1st, 2nd, and 3rd peaks correspond to the fact that approximately 2, 3, and 4 half-waves fit in the defect layer responsible for their formation. Note that these dispersion characteristics fully correspond to the presentation described in [6,7,14,15]. Figure 5 shows a dispersion diagram along the wave propagation direction with the zeroth order and first order TE propagating modes of the infinite 2D band-gap wire medium with symmetry that corresponds to Fig.…”

“…The 1st bandgap is clearly visible at the transmission spectra and limited by the frequency passbands marked with hatching. This phenomenon is described in detail in [15]. As can be seen form Fig.…”

“…In our case, we consider the microwave analog of PC (2D wire mesh photonic crystal [5,15]) formed by the periodic wire array with rectangular unit cell [14,15]. It is necessary to note that such metamaterial could be attributed also to plasma-like medium, under conditions when wire size and periods are much smaller than the wavelength [16,17].…”