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Antenna array Complex directional antenna consists of separate near-omnidirectional antennas (radiating elements) positioned in the space and driven by high-frequency … (from 'Glossary' of our website) |
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Search on siteUse tags cloud or enter into field a search phrase and choose section of search. ... spherical antenna (
). Other methods of exciting, which allow to get maximum CDD of non-superdirective antenna have significant oscillations of amplitude and phase, which makes it difficult to use them. For the case of exciting a half−sphere with current (1), DD were calculated using an approximate method.
Fig.1 DD of spherical antenna,
kR
=20:
— strict computation;
— approximation;
— DD of the flat aperture.
Fig. 1 presents DD of the spherical antenna in case the half-sphere is excited computed using strict and approximate formulas. Also, for the sake of comparison,...
Modified: 01/10/2007
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