Title :
Characterisation of negative meta materials based on generalised periodic structure concept
Author :
Sudhakaran, S. ; Hao, Y. ; Parini, C.G.
Author_Institution :
Dept. of Electron. Eng., London Univ., UK
Abstract :
In this paper we studied the negative refractive index in electromagnetic periodic structures and it is shown how negative refraction can be identified from the dispersion behaviour of periodic structures, which is obtained by considering entire periodic structure as a block. The effect of spatial harmonics towards negative refraction is also presented which is neglected in past analysis.
Keywords :
dispersion (wave); electromagnetic wave propagation; harmonics; high-pass filters; lumped parameter networks; microwave materials; nanocomposites; periodic structures; photonic band gap; refractive index; bandgap structure; dispersion behaviour; dispersion diagrams; electromagnetic periodic structures; generalised periodic structure concept; negative meta materials; negative refractive index; spatial harmonics; Circuits; Electromagnetic refraction; Equations; Harmonic analysis; Periodic structures; Permeability; Permittivity; Power harmonic filters; Propagation constant; Wires;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 2003
Print_ISBN :
0-7803-8123-8
DOI :
10.1109/HFPSC.2003.1242309
