TY - GEN
T1 - Low interaction of an arbitrarily large PEC cylinder with em waves filtered through a layered structure
AU - Valagiannopoulos, Constantinos A.
PY - 2013/8/14
Y1 - 2013/8/14
N2 - The idea of diminishing the interaction between a PEC volume (however spatially extended) and the source of electromagnetic (EM) illumination is very intriguing since it constitutes the principle of operation of numerous useful devices. Cloaks, absorbers and isolators are only few of the structures whose functionalities are based on controlling the electromagnetic energy exchange of metallic scatterers with current sources. Such a feature is achieved by properly designing a layered structure made from gradually electromagnetically sparser materials which is excited by a line source. The propagation directions of the incident rays are shifted, according to Snell's law, to be tangentially oriented to the rear boundary of the slab cluster. In this way, the EM field does not interact significantly with an arbitrarily large perfectly conducting (PEC) circular cylinder. At the same time, the reflections back to the source are not substantial due to the matched impedance of the layered structure. Accordingly, the propagated field 'avoids' the PEC scatterer by cloaking it and not admitting significant energy exchange.
AB - The idea of diminishing the interaction between a PEC volume (however spatially extended) and the source of electromagnetic (EM) illumination is very intriguing since it constitutes the principle of operation of numerous useful devices. Cloaks, absorbers and isolators are only few of the structures whose functionalities are based on controlling the electromagnetic energy exchange of metallic scatterers with current sources. Such a feature is achieved by properly designing a layered structure made from gradually electromagnetically sparser materials which is excited by a line source. The propagation directions of the incident rays are shifted, according to Snell's law, to be tangentially oriented to the rear boundary of the slab cluster. In this way, the EM field does not interact significantly with an arbitrarily large perfectly conducting (PEC) circular cylinder. At the same time, the reflections back to the source are not substantial due to the matched impedance of the layered structure. Accordingly, the propagated field 'avoids' the PEC scatterer by cloaking it and not admitting significant energy exchange.
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M3 - Conference contribution
AN - SCOPUS:84881286226
SN - 9788890701832
T3 - 2013 7th European Conference on Antennas and Propagation, EuCAP 2013
SP - 2238
EP - 2242
BT - 2013 7th European Conference on Antennas and Propagation, EuCAP 2013
T2 - 2013 7th European Conference on Antennas and Propagation, EuCAP 2013
Y2 - 8 April 2013 through 12 April 2013
ER -