Title :
Gaussian pulse expansion of modulated signals in a double-negative slab
Author :
Monti, Giuseppina ; Tarricone, Luciano
Author_Institution :
Dept. of Eng. & Innovation, Lecce Univ.
fDate :
6/1/2006 12:00:00 AM
Abstract :
A novel approach, based on a theoretical formulation, is proposed for the analysis of finite-bandwidth signals in a lossy double-negative (DNG) slab. It adopts a signal expansion into Gaussian pulse functions, and provides an immediate approximate form of a modulated signal after the propagation in the dispersive medium. The accuracy and flexibility of the approach is proven studying the propagation of amplitude- and phase-modulated signals, and considering two different realizations of the DNG medium
Keywords :
Gaussian processes; dispersion (wave); metamaterials; phase modulation; DNG medium; DNG slab; Fourier transform; Gaussian pulse expansion; accuracy approach; amplitude-modulated signals; dispersive medium propagation; finite-bandwidth signals; flexibility approach; lossy double-negative slab; metamaterials; phase-modulated signals; signal expansion; transfer function; Amplitude modulation; Bandwidth; Dispersion; Finite difference methods; Frequency; Metamaterials; Pulse modulation; Signal analysis; Slabs; Transfer functions; Double-negative (DNG) media; Fourier transform; metamaterials; modulation; transfer function;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2006.874879
