Spatial tuning of a volumetric metamaterial introduces many new design considerations that strongly affect the performance and practicality of a resulting system implementation. This paper discusses the design rules and procedures for spatially reconfigurable metamaterial systems using a tunable near-zero-index slab with adjustable shape as a representative design example. We propose a split-ring resonator-based metamaterial, where each resonator is tuned in and out of resonance using a varactor diode to change the effective material response. The periodic, hexagonal tiles may be combined and connected in a planar spiral to form a cylindrical metamaterial panel whose radius may be arbitrarily large. Multiple panels are then stacked, with appropriate cropping, to form a volumetric metamaterial slab.

Original languageEnglish (US)
Article number7105384
Pages (from-to)3513-3521
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number8
StatePublished - Aug 1 2015

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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