Title :
Propagation and distortion of a gaussian pulse in a gyromagnetic medium
Author :
Rhee, Seungyup ; Park, Eunseok ; Lee, Jay K.
Author_Institution :
Chonnam Nat. Univ., Yeosu
Abstract :
This paper describes the theoretical investigation of the distortion of a Gaussian pulse when the pulse propagates in a gyromagnetic medium with an arbitrary direction of an external magnetic field. The phase velocity in this medium is a nonlinear function of frequency and thus causes the dispersion of the spectral components of the pulse. An analysis of dispersion characteristics of a gyromagnetic medium is given. The propagation and distortion of type I and type II wave pulses are investigated. Numerical results show the possibility of controlling the dispersion characteristics and pulse distortion by varying the external magnetic field.
Keywords :
dispersion (wave); electromagnetic wave absorption; electromagnetic wave diffraction; electromagnetic wave propagation; electromagnetic wave scattering; gyromagnetic effect; magnetic field effects; magnetic materials; Gaussian pulse distortion; Gaussian pulse propagation; Gaussian pulse spectral component dispersion; external magnetic field; gyromagnetic medium; phase velocity; type I wave pulse; type II wave pulse; Dispersion; Fourier transforms; Frequency domain analysis; Gyromagnetism; Magnetic analysis; Magnetic fields; Nonlinear distortion; Paper technology; Space vector pulse width modulation; Wideband; Dispersion; Gaussian pulse propagation; Gyromagnetic medium;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4422903
