Title :
Imaging property of transient electromagnetic sources using a slab of left-handed material
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing
Abstract :
In this paper, a line source with Gaussian pulse and sinusoidal pulse excitation is used. Through an exact analysis and FFT technique, the imaging properties is investigated. The numerical results suggest that the electromagnetic waves would not focus if the source currents include a wide range of frequency components in which both the permittivity and permeability of the LHM slab deviate from -1 significantly
Keywords :
electromagnetic waves; fast Fourier transforms; magnetic permeability; metamaterials; permittivity; FFT technique; Gaussian pulse; LHM slab deviate; electromagnetic waves; imaging property; left-handed material slab; line source; negative permeability; negative permittivity; sinusoidal pulse excitation; source currents; transient electromagnetic sources; Electromagnetic scattering; Electromagnetic transients; Focusing; Frequency; Lenses; Metamaterials; Permeability; Permittivity; Slabs; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710959
