Title :
Dispersion characterisation of a composite right-left-hand transmission line unit cell using Particle Swarm Optimisation
Author_Institution :
Sch. of ITEE, UNSW, Canberra, ACT, Australia
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5172115
