Title :
Modeling of ground-penetrating-radar antennas with shields and simulated absorbers
Author :
U. Oguz;L. Gurel
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
A three-dimensional (3-D) finite-difference time-domain (FDTD) scheme is employed to simulate ground-penetrating radars. Conducting shield walls and absorbers are used to reduce the direct coupling to the receiver. Perfectly matched layer (PML) absorbing boundary conditions are used for matching the multilayered media and simulating physical absorbers inside the FDTD computational domain. Targets are modeled by rectangular prisms of arbitrary permittivity and conductivity. The ground is modeled by homogeneous and lossless dielectric media.
Keywords :
"Finite difference methods","Time domain analysis","Computational modeling","Dielectric losses","Ground penetrating radar","Perfectly matched layers","Boundary conditions","Physics computing","Permittivity","Conductivity"
Journal_Title :
IEEE Transactions on Antennas and Propagation