Nonlinear two element active antenna array stabilityanalysis
- 25 April 1996
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 32 (9) , 788-789
- https://doi.org/10.1049/el:19960573
Abstract
Closed form analytical equations for the stability condition for the two modes available within a two element active antenna linear array as the element separation is increased are presented for the first time. A mathematical explanation to the mode swap characteristics first reported by Stephan is given with a prediction of within which mode the array will operate as a function of element separation. This knowledge is imperative since the array far-field radiation pattern is different depending on the operating mode, and so a prediction method is desirable (i.e. boresight null or peak). The identical element case is considered, although the analysis can be extended to incorporate similar though non-identical elements.Keywords
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