Design of a Low-Profile Wide-Angle Scanning Array Antenna Based on Artificial Magnetic Conductor

A dipole array antenna loaded with Artificial magnetic conductor is proposed in this paper. The dipole antenna is selected as the unit of the array antenna due to its small size and simple structure. The AMC is loaded below the dipole array and coaxial feed is used. Through optimization, the proposed array can achieve active
$\text{VSWR}< 2.8$
in the required band of 398 - 402 MHz. Compared to the dipole array antenna with PEC, the unidirectional linearly polarized radiation patterns and wide-angle scanning are obtained by loading a
$3 \times 8$
AMC array. The total height is 7.58 mm, roughly is
$0.01\lambda_{0}$
at 400 MHz, which achieves the characteristic of low-profile.