Title :
Local velocity calculation for spherical wave UWB signals in FDTD
Author :
Thiry, Arnaud ; Costen, Fumie ; Brow, Anthony
Author_Institution :
Manchester Univ.
Abstract :
This paper proposes a procedure to calculate the local propagation speed of a spherical wave UWB signal for the assessment of numerical noise in a limited FDTD space. This method overcomes the theoretical deficiency of phase and group velocities which assumes the plane wave monochromatic signal propagation. The proposed method can estimate the local signal velocity to any propagation directions in one numerical simulation
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; FDTD method; finite difference time domain method; local propagation speed; local velocity calculation; numerical noise; plane wave monochromatic signal propagation; spherical wave UWB signals; ultrawideband signal; Distortion measurement; Electromagnetic propagation; Electromagnetic transients; Energy measurement; Finite difference methods; Fluid flow measurement; Frequency; Phase distortion; Pulse measurements; 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.2006.1711453
