TY - JOUR
T1 - Periodically loaded dipole array supporting left-handed propagation
AU - Goussetis, G.
AU - Feresidis, A.P.
AU - Vardaxoglou, J.C.
N1 - Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/8/1
Y1 - 2005/8/1
N2 - Periodically loaded dipole arrays printed on grounded dielectric substrate are shown to exhibit left-handed propagation properties. In an equivalent transmission line representation, left-handedness emerges due to the excess series capacitance and shunt inductance. Based on this concept, the authors study the distribution of the modal fields and the variation of series capacitance and shunt inductance as the dipoles are loaded with stubs. Full wave dispersion curves that show the gradual transition from a right-handed to a left-handed medium upon periodically loading the dipoles with stubs are presented. An equivalent circuit is derived that matches to a very good extent the full wave result. The cell dimensions are a small fraction of the wavelength (λ/5), so the structure can be considered as an equivalent homogeneous surface. The structure is simple, readily scalable to higher frequencies and compatible with low-cost fabrication techniques.
AB - Periodically loaded dipole arrays printed on grounded dielectric substrate are shown to exhibit left-handed propagation properties. In an equivalent transmission line representation, left-handedness emerges due to the excess series capacitance and shunt inductance. Based on this concept, the authors study the distribution of the modal fields and the variation of series capacitance and shunt inductance as the dipoles are loaded with stubs. Full wave dispersion curves that show the gradual transition from a right-handed to a left-handed medium upon periodically loading the dipoles with stubs are presented. An equivalent circuit is derived that matches to a very good extent the full wave result. The cell dimensions are a small fraction of the wavelength (λ/5), so the structure can be considered as an equivalent homogeneous surface. The structure is simple, readily scalable to higher frequencies and compatible with low-cost fabrication techniques.
UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-25144497094&md5=3383dff8cc2483483973f1b0c24d14bb
U2 - 10.1049/ip-map:20045165
DO - 10.1049/ip-map:20045165
M3 - Article
AN - SCOPUS:25144497094
SN - 1350-2417
VL - 152
SP - 251
EP - 254
JO - IEE Proceedings - Microwaves, Antennas & Propagation
JF - IEE Proceedings - Microwaves, Antennas & Propagation
IS - 4
ER -