Abstract
AbstractThis paper presents a dual‐notch polarization and beam reconfigurable microstrip antenna. It uses parasitics which incorporate switches to steer its beam away from boresight and dual notches which, again, incorporate switches to reconfigure between linear and circular polarization. The antenna is a low profile microstrip patch antenna which only uses a single feed, allowing it to be compact and simple in terms of its structure.
Highlights
Pattern and polarisation reconfigurable antennas have received a lot of attention from researchers
This paper presents a solution which uses parasitics to steer the beam away from boresight, and dual-notches to attain Circularly polarized (CP) within a steering range of the antenna
Preserving CP has been especially challenging in this design, where parasitics are used for beam reconfigurability, which affect the resonant frequency of the antenna
Summary
Pattern and polarisation reconfigurable antennas have received a lot of attention from researchers. Attaining a good impedance match while reconfiguring between the polarisation modes and preserving a good alignment between the 10 dB return loss bandwidth and the 3 dB AR bandwidth are challenging [2], [3].
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