Low profile small antenna using ferroelectrics cube based artificial magnetic conductor

We report on a zero-phase reflection of 2D arrays of high κ ferroelectrics cubic ceramics around the magnetic resonance frequency, which can be considered as artificial magnetic conductor (AMC). On the basis of a BaxSr1-xTiO3 (BST) technology with a relative permittivity as high as 850, the performances of a dipole antenna in close to a single layer dielectric AMC were investigated numerically. For this low profile antenna, it is found an enhancement of the directivity by more than twice was achieved owing to the high reflectivity of the AMC layer.