Title :
Ionospheric and geographical effects on the choice of tactical and point-to-point HF antenna systems
Author :
Austin, Brian A.
Author_Institution :
University of the Witwatersrand, Department of Electrical Engineering, Johannesburg, South Africa
Abstract :
The choice of antenna systems for single-hop HF circuits is shown to be dependent on both prevailing ionospheric conditions and on the geographical location of the terminals. Both northern hemisphere and equatorial circuits require less relative antenna system bandwidth than do those in the southern hemisphere.
Keywords :
antenna arrays; broadcast antennas; receiving antennas; equatorial circuits; geographical effects; ionospheric effects; northern hemisphere; point-to-point HF antenna systems; relative antenna system bandwidth; single-hop HF circuits; southern hemisphere; tactical HF antenna systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850786
