Propagation Characteristic of Wideband Electromagnetic Wave in the Ionosphere

• Taniguchi Takumi

  Department of Communications Engineering, Osaka University

• Hirata Akimasa

  Department of Computer Science and Engineering, Nagoya Institute of Technology

• Morimoto Takeshi

  Department of Communications Engineering, Osaka University

• Kawasaki Zen

  Department of Communications Engineering, Osaka University

Abstract

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.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 126 (11), 1173-1176, 2006

  The Institute of Electrical Engineers of Japan

Keywords

• wideband EM wave
• TEC
• electron density

Details

• CRID: 1390001204592867584
• NII Article ID: 10018317995
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.126.1173
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 8561965
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8561965
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/126/11/126_11_1173/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed