Transient fields of a horizontal electric dipole on a multilayered dielectric medium
Document Type
Article
Publication Date
12-1-1997
Abstract
The transient electric fields of a horizontal electric dipole excited by a short pulse current and located on a layered dielectric medium were analyzed using the Cagniard-de-Hoop method. The fields are expressed as the convolution of the exciting current with the layered medium response. The layered medium response is obtained directly from the integral representation for the electric fields in frequency domain and is expressed as a finite integral. In contrast to the conventional frequency synthesis approach, the Cagniard-de-Hoop method proves to be computationally more efficient and numerically more stable. Compared with the asymptotic approach, the solution here involves no approximation. The nature of the various waves, reflected waves (guided wave and leaky wave), and lateral waves can be easily recognized on the Cagniard integral path. Numerical results are obtained to provide a rigorous forward modeling for the georadar operating on layered media. © 1997 IEEE.
Publication Title
IEEE Transactions on Antennas and Propagation
Recommended Citation
Dai, R.,
&
Young, C.
(1997).
Transient fields of a horizontal electric dipole on a multilayered dielectric medium.
IEEE Transactions on Antennas and Propagation,
45(6), 1023-1031.
http://doi.org/10.1109/8.585751
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10259