On the Mechanism of Reflection of ELF-LF Radio Waves from the Lower Ionosphere

Masashi HAYAKAWA  Shin SHIMAKURA  

Publication
IEICE TRANSACTIONS (1976-1990)   Vol.E61   No.1   pp.15-18
Publication Date: 1978/01/25
Online ISSN: 
DOI: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Antennas and Propagation
Keyword: 


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Summary: 
The mechanism of reflection of radio waves from the anisotropic lower ionosphere with exponential profile has been investigated over a wide frequency range from ELF (extremely low frequency) to LF (low frequency) by means of a full-wave method. The reflection levels deduced from the full-wave study have been compared with those which are analytically obtained from the concept of the modified refractive index for the isotropic ionosphere.