Gradient index metamaterial with arbitrary loss factors in RHM and LHM media: The case of constant impedance throughout the structure
2012 (English)In: PIERS 2012 Moscow: Progress In Electromagnetics Research Symposium, Electromagnetics Academy , 2012, 1390-1394 p.Conference paper (Refereed)
The transmission and reflection properties of lossy structures involving left-handed materials with graded permittivity and permeability have been investigated. We present an exact analytical solution to Helmholtz' equation for a lossy case with the graded both real and imaginary parts of permittivity and permeability profile changing according to a hyperbolic tangent function along the direction of propagation. This allows for different loss factors in the two media. The expressions and graphical results for the field intensity along the graded structure are presented. The analytical solution is validated by a dispersive numerical model of lossy metamaterials that uses a transmission line matrix method based on Z-transforms, where a close agreement between the analytic and numerical results is obtained.
Place, publisher, year, edition, pages
Electromagnetics Academy , 2012. 1390-1394 p.
, Progress in Electromagnetics Research Symposium, ISSN 1559-9450
Matrix algebra, Numerical methods, Permittivity
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-107305ISI: 000327308700307ScopusID: 2-s2.0-84868542363ISBN: 978-193414222-6OAI: oai:DiVA.org:kth-107305DiVA: diva2:576112
Progress in Electromagnetics Research Symposium, PIERS 2012 Moscow, 19 August 2012 through 23 August 2012, Moscow
QC 201212122012-12-122012-12-102014-01-14Bibliographically approved