TITLE

Ferroelectric tunable balanced right- and left-handed transmission lines

AUTHOR(S)
Marteau, Aurélien; Velu, Gabriel; Houzet, Gregory; Burgnies, Ludovic; Lheurette, Eric; Carru, Jean Claude; Lippens, Didier
PUB. DATE
January 2009
SOURCE
Applied Physics Letters;1/12/2009, Vol. 94 Issue 2, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The tuning of the dispersion characteristics of a balanced composite right- and left-handed transmission lines is demonstrated at centimeter and millimeter wavelengths. To this aim, coplanar waveguides, periodically loaded by interdigitated capacitances and stublike inductances, were fabricated onto a Ba0.5Sr0.5TiO3 ferroelectric thin film. The scattering parameter measurements show that the lines are left handed from 8 to 18 GHz and right handed above. The results are interpreted by the retrieval of the effective permittivity and permeability, which exhibit Drude-like dispersion characteristics with a magnetic plasma frequency, which can be tuned via the voltage-controlled permittivity variation in the BST thin film.
ACCESSION #
36258442

 

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