Tailoring the AMC and EBG characteristics of periodic metallic arrays printed on grounded dielectric substrate

By George Goussetis, Alexandros P. Feresidis, C. Vardaxoglou. IEEE Transactions on Antennas and Propagation, 2006

285 citations recorded by the source corpus.

The artificial magnetic conductor (AMC) and electromagnetic band gap (EBG) characteristics of planar periodic metallic arrays printed on grounded dielectric substrate are investigated. The currents induced on the arrays are presented for the first time and their study reveals two distinct resonance phenomena associated with these surfaces. A new technique is presented to tailor the spectral position of the AMC operation and the EBG. Square patch arrays with fixed element size and variable periodicities are employed as working examples to demonstrate the dependence of the spectral AMC and EBG characteristics on array parameters. It is revealed that as the array periodicity is increased, the AMC frequency is increased, while the EBG frequency is reduced. This is shown to occur due to the different nature of the resonance phenomena and the associated underlying physical mechanisms that produce the two effects. The effect of substrate thickness is also investigated. Full wave method of moments (MoM) has been employed for the derivation of the reflection characteristics, the currents and the dispersion relations. A uniplanar array with simultaneous AMC and EBG operation is demonstrated theoretically and experimentally.

Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/dc52f74fcc87227a24ca10d5e87cde9774d33229

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In Electronic, Optical and Magnetic Materials

Citations in the corpus

Anisotropic Impedance Surfaces for Linear to Circular Polarization Conversion (2012, background): “phenomena [20] and therefore thermal losses peak around that”
Simple and Accurate Analytical Model of Planar Grids and High-Impedance Surfaces Comprising Metal Strips or Patches (2007, background): “Knowledge about surface waves along the impedance surfaces is needed when using the impedance surfaces as leaky wave antennas [34], artificial magnetic co nductors for antenna applications [20], or to suppress back radiation of the antennas [22].”
Metantenna: When Metasurface Meets Antenna Again (2020, background): “The latters are named from their specific functions or macroscopic performances, such as frequency selective surface (FSS) [25]–[27], high-impedance surface (HIS) [28], [29], and EM bandgap (EBG) structure [30], [31].”
Mutual Coupling Reduction in Patch Antenna Arrays by Using a Planar EBG Structure and a Multilayer Dielectric Substrate (2008, background): “These structures have demonstrated to behave as artificial magnetic conductor (AMC) over a frequency range [14], and also to possess bandgaps for surface waves [15], [16], i.”