Title :
Full wave analysis of RF signal attenuation in a lossy cave using a high order time domain vector finite element method
Author :
Pingenot, J. ; Rieben, R. ; White, D.
Author_Institution :
Lawrence Livermore Nat. Lab., Berkeley, CA, USA
Abstract :
We present a computational study of signal propagation and attenuation of a 200 MHz dipole antenna in a cave environment. The cave is modeled as a straight and lossy random rough wall. To simulate a broad frequency band, the full wave Maxwell equations are solved directly in the time domain via a high order vector finite element discretization using the massively parallel CEM code EMSolve. The simulation is performed for a series of random meshes in order to generate statistical data for the propagation and attenuation properties of the cave environment. Results for the power spectral density and phase of the electric field vector components are presented and discussed.
Keywords :
Maxwell equations; VHF antennas; dipole antennas; finite element analysis; radiowave propagation; statistical analysis; 200 MHz; EMSolve; RF signal attenuation; broad frequency band; dipole antenna; electric field vector; full wave Maxwell equations; full wave analysis; high order time domain vector finite element method; lossy cave; massively parallel CEM code; power spectral density; signal attenuation; signal propagation; Antennas and propagation; Attenuation; Conducting materials; Dipole antennas; Electromagnetic propagation; Finite element methods; Maxwell equations; Radio frequency; Signal analysis; Time domain analysis;
Conference_Titel :
Wireless Communications and Applied Computational Electromagnetics, 2005. IEEE/ACES International Conference on
Print_ISBN :
0-7803-9068-7
DOI :
10.1109/WCACEM.2005.1469674
