TY - CHAP
T1 - Analysis and application of metamaterial spiral-based transmission lines
AU - Kokkinos, T.
AU - Feresidis, A.P.
AU - Vardaxoglou, J.C.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Double spiral resonators, properly backed on grounded substrates and specifically arranged in periodic arrays, support backward waves at their fundamental resonance. Transmission lines that are composed of these spirals and their potential use in microwave applications are studied in this paper. Subsequently to a periodic, full-wave analysis of the double spiral resonators, the fabrication and measurement of the spiral-based transmission lines experimentally validate that they support backward waves over a fractional bandwidth of approximately 13%. For the in depth analysis of these lines, an equivalent circuit, that can describe all the phenomena associated with the operation of the double spirals as structural unit cells of metamaterials, is extracted. Finally, an ultra compact diplexer that originates its operation on spiral-based transmission lines is presented, exhibiting just one of the possible ways that metamaterial lines can be employed in microwave applications.
AB - Double spiral resonators, properly backed on grounded substrates and specifically arranged in periodic arrays, support backward waves at their fundamental resonance. Transmission lines that are composed of these spirals and their potential use in microwave applications are studied in this paper. Subsequently to a periodic, full-wave analysis of the double spiral resonators, the fabrication and measurement of the spiral-based transmission lines experimentally validate that they support backward waves over a fractional bandwidth of approximately 13%. For the in depth analysis of these lines, an equivalent circuit, that can describe all the phenomena associated with the operation of the double spirals as structural unit cells of metamaterials, is extracted. Finally, an ultra compact diplexer that originates its operation on spiral-based transmission lines is presented, exhibiting just one of the possible ways that metamaterial lines can be employed in microwave applications.
UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-34547333641&md5=80eafc44f21fb2b89ba957024c697634
U2 - 10.1109/IWAT.2007.370118
DO - 10.1109/IWAT.2007.370118
M3 - Other chapter contribution
AN - SCOPUS:34547333641
SP - 233
EP - 236
BT - Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007
ER -