Dispersion characterisation of a composite right-left-hand transmission line unit cell using Particle Swarm Optimisation

Author

Milford, G.N.

Author_Institution

Sch. of ITEE, UNSW, Canberra, ACT, Australia

fYear

2009

fDate

1-5 June 2009

Firstpage

1

Lastpage

4

Abstract

The left-handed propagation behaviour of artificial metamaterial structures offers a new paradigm for electromagnetic device design. Transmission line metamaterials consisting of a cascade of identical unit cells have been shown to achieve wider bandwidth and lower losses than resonant left-handed structures. In this paper we demonstrate a method for extraction of the broadband dispersion characteristic of a single unit cell using Particle Swarm Optimisation of the unit cell´s equivalent circuit component values.

Keywords

dispersion (wave); electromagnetic devices; electromagnetic wave propagation; equivalent circuits; metamaterials; particle swarm optimisation; transmission lines; artificial metamaterial structure; broadband dispersion characteristic extraction; composite right-left-hand transmission line unit cell; electromagnetic device design; equivalent circuit component value; left-handed propagation behaviour; particle swarm optimisation; Bandwidth; Electromagnetic devices; Electromagnetic propagation; Equivalent circuits; Metamaterials; Optimization methods; Particle swarm optimization; Propagation losses; Resonance; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE

Conference_Location

Charleston, SC

ISSN

1522-3965

Print_ISBN

978-1-4244-3647-7

Type

conf

DOI

10.1109/APS.2009.5172115

Filename

5172115