Open AccessReduction of squint in the slant polarised phased array antennas
Author(s) -
Shahpari M.
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.1688
Subject(s) - phased array , optics , antenna (radio) , physics , reduction (mathematics) , horizontal plane , beam (structure) , directional antenna , vertical plane , computer science , telecommunications , mathematics , geometry
The nature of the squint problem in the electrically tilted phased arrays (e.g. base transceiver station antennas) is explored based on the antenna theory and array theory. The antenna elements in the horizontal, vertical, or slant polarisations are considered. It is shown that the phased arrays with vertical and horizontal polarisations do not suffer from beam squint. However, it is illustrated that the issue of the squint becomes evident when one scans the beam along the vertical plane with slant antenna elements. A solution to reduce the squint problem is proposed which reduces the squint angle by a factor of two, and also improves the symmetry of the pattern.