IEEJ Transactions on Fundamentals and Materials
Online ISSN : 1347-5533
Print ISSN : 0385-4205
Propagation Characteristic of Wideband Electromagnetic Wave in the Ionosphere
Takumi TaniguchiAkimasa HirataTakeshi MorimotoZen Kawasaki
Author information

Volume 126 (2006) Issue 11 Pages 1173-1176

Download PDF (746K) Contact us

This paper analyzes propagation of wideband electromagnetic (EM) wave in the ionosphere. The influence of total electron contents (TEC) of the ionosphere on the propagation of EM wave is investigated numerically. Our attention is paid to very high frequency (VHF) band, which is dominant frequency band of EM waves emitted from lightning discharges. A one-dimensional model of the ionosphere is considered for simplicity. The ionosphere is treated as an anisotropic and dispersive medium. Particularly, the altitude distribution of electron density is taken into consideration. Variation of pulse width and difference in the arrival time between each frequency component due to the dispersion in the ionosphere are revealed. For our numerical investigation, group delay of the EM wave is found to be dependent on the altitude distribution of electron density, especially when the peak electron density is the order of 1012m-3 or more.

Information related to the author
© 2006 by the Institute of Electrical Engineers of Japan
Previous article Next article

Recently visited articles
Journal news & Announcements
  • A member of IEEJ can access the transactions of the Technical Society to which the member belongs. Please enter the My Page login ID in the subscriber number column and the birth date (year/month/date with one-byte characters: for example, 19800303) in the password column.